Activity at the intersection of phylogenetic systematics and developmental biology has shifted over the years. |
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On average, nodes preceding gene duplications occur earlier in the phylogenetic trees than speciation nodes. |
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We also explore the extraxial nature and phylogenetic significance of the odontophore. |
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This phenomenon owes its existence to both phylogenetic and ontogenetic naturalistic processes. |
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Extant birds are the most appropriate models for understanding the ontogenetic and phylogenetic development of PSP in sauropods. |
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Cladistics is currently the most popular paradigm of phylogenetic classification in biological taxonomy. |
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To investigate the Papuan sample, we therefore constructed a phylogenetic network of the Papuans including the Malay. |
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Here we combine phylogenetic reconstruction with new data on the morphology and ecophysiology of these plants to infer early angiosperm function. |
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Even comprehensive analyses have not clarified phylogenetic relationships among aardvarks, tenrecs, golden moles, and elephant shrews. |
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Although phylogenetic tests in ostracods are relatively clear, morphological evidence is somewhat ambiguous. |
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Consistent with the close phylogenetic relationships of the species sampled, most nucleotide sites were invariant in pair wise comparisons. |
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These genetic techniques will clarify the evolutionary and phylogenetic importance of segmentation in metazoan evolution. |
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We also have no indication that the topology of the phylogenetic trees is biased by the alignments or the tree-building algorithms. |
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In addition, phylogenetic analyses were performed for each of the individual virB genes selected for concatenation. |
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However, due to the ambiguity in the phylogenetic analyses, this divergence is shown as an unresolved trichotomy. |
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Also, the mathematical models currently used in phylogenetic analysis are crude approximations to reality. |
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Knapp has also investigated the evolutionary origins of fruit size, colour and biochemistry in the genus Solanum using a phylogenetic approach. |
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The foregoing is not to say that Newton does not appreciate the fact that a phylogenetic hypothesis can be important in biogeography. |
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The majority of the fossils used for calibration of avian molecular clocks have uncertain phylogenetic relationships. |
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Despite this attention and extensive monographic work, their phylogenetic history is still incompletely known. |
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The order of genes in the mitochondria was used as a third data set for phylogenetic analysis. |
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Lots of phylogenetic change was in the air, or actually in the water, but it was mostly happening in the same lush, warm epicontinental seas. |
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Major arthropod lines have long been recognized, but the phylogenetic relationships among these groups remain controversial. |
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Other interesting taxa are listed in boxes within the tree, with their possible phylogenetic positions signified by dashed lines. |
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A relationship between these genes has also been obtained from mutant analysis as well as phylogenetic analysis. |
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In the phylogenetic analysis, 42 sites were parsimony informative, 47 were uninformative and 380 were constant. |
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We performed phylogenetic analyses of introns from species from four avian orders that are representative of the two infraclasses within Aves. |
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The phylogenetic position of needlefishes relative to halfbeaks fits his prediction. |
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The inferred phylogenetic relationships between acanthocephalans and rotifers differ appreciably. |
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More than 200 sexually transmitted pathogens have been reported in animals covering a wide phylogenetic range. |
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The research leads to a more recent common ancestor for humans than phylogenetic estimates that assume a relationship with chimpanzees. |
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We applied additional filtering criteria, including phylogenetic validations, to enhance the reliability of our predictions. |
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We used the two satellite DNA families of the sparid species for phylogenetic inference of the group. |
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Note that the D. tripunctata group is found in a phylogenetic branch that is rather distant from the other groups with canonical P sequences. |
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Hence, we remain agnostic regarding phylogenetic relationships among basal angiosperm lineages. |
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Microsatellites are an important source of information about the phylogenetic relationships among human populations. |
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The conventional method for identifying a potential drug target in rRNA is phylogenetic analysis. |
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The phylogenetic tree shows the genealogical relationships among nine eukaryotes. |
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Only unambiguously aligned positions were considered in phylogenetic analyses. |
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Alternative phylogenetic trees were compared excluding the ophiuroid data set. |
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But unless you have already mastered vertebrate anatomy, Mesozoic stratigraphy, and phylogenetic analysis, it's probably not the place to begin. |
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The compartmented genetic system of the plant cell is of heterogenous phylogenetic origin. |
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The family Clusiaceae and the subfamily Clusioideae with the genus Clusia have a minimum phylogenetic age of 90 x 10 years. |
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These ingroup species were chosen to represent each of the proposed subgenera and genera from previous phylogenetic studies. |
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Obviously, in any phylogenetic analysis a subset of the characters will retain the ancestral state. |
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Below we summarize the characters and apparent phylogenetic positions of these taxa. |
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Our study, in part, builds on theirs by providing more of a phylogenetic component to the histological approach that they used. |
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The distribution of homologues among different taxa is seen as a consequence of their phylogenetic relationship. |
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The phylogenetic and paleobiological significance of the new fossils is discussed. |
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As an initial matter, the echinoderms and chordate phyla have been arranged in almost every possible phylogenetic order. |
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Interpreting the extreme similarity in anteaters and pangolins remains problematic due to lingering disagreement among phylogenetic hypotheses. |
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Across major phylogenetic comparisons, the evolution of Hox clusters generally parallels the evolution of axial complexity. |
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The two main methods for developing phylogenies in palaeontology are evolutionary systematics and phylogenetic systematics or cladism. |
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There he got his first taste of applying the tools of molecular biology to systematics and phylogenetic research. |
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This chapter alone makes the book an excellent resource for any course in phylogenetic systematics. |
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Whatever their phylogenetic position, the hagfish are still considered the most primitive vertebrate known, living or extinct. |
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However, if this is not the case, then phylogenetic networks represent sets of contradicting splits by hypercubes. |
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From the molecular viewpoint, however, the phylogenetic relationship among elephants, sirenians, and hyraxes remains confused. |
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These and other phylogenetic hypotheses will be tested in future studies with an expanded coverage of percoid families. |
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There is a great need for phylogenetic analysis of virtually all the constituent families. |
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Comparison of their photoreceptive cells with those of the chordates corroborated such a phylogenetic position. |
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We determined the phylogenetic position of this strain within the genus Wolbachia to ascertain its nearest relatives. |
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The putative affiliative bond is argued to be part of the phylogenetic heritage of the men of our species. |
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His phylogenetic explanation of the origin of language stands in service of his empiricist effort to ground human knowledge. |
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These channels play an important physiological role in living cells of diverse phylogenetic origin. |
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Highly variable and gappy regions of alignments are usually excluded from phylogenetic analyses. |
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Second, our work with lacertids helped make us both keenly aware of the importance of phylogeny and phylogenetic control in comparative biology. |
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This phylogenetic hypothesis had been held valid until it was recently reinvestigated. |
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The Triassic ammonoids represent the phylogenetic bridge between Paleozoic and Jurassic ammonoids. |
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The evolution of protein disulfide isomerases presents a difficult but important phylogenetic question. |
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We also determined which phylogenetic lineages had evolved faster or slower. |
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However, many viruses readily recombine, which implies that no single phylogenetic tree describes the genealogy of the sampled sequences. |
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In a phylogenetic dendrogram, branches and twigs here and there show saltations into a new grade. |
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If ontogeny really did recapitulate phylogeny, then phylogenetic relationships might be determined directly by reference to ontogenetic sequences. |
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Antibiotic peptides constitute a major component of the innate defense system shared by organisms from throughout the phylogenetic tree, including humans. |
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The trait of temporal fenestration has been used extensively in phylogenetic studies of amniotes, but unfortunately, it is not a reliable guide to their evolution. |
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A symposium on prosobranch phylogeny was held in 1986 which resulted in several papers using cladistic analysis to produce phylogenetic hypotheses of various gastropod groups. |
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Loligo bleekeri was used as the out-group in all phylogenetic analyses because most authors currently consider cephalopods as the sister group of gastropods. |
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In particular, there is a significant phylogenetic gap in information for the urochordates, a subphylum near the invertebrate-vertebrate transition. |
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There is still much discussion over the issue of species and binomials in the phylogenetic system, and at present, the draft PhyloCode only addresses supraspecific taxa. |
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Likewise, comparisons of growth series permit elucidation of phylogenetic relationships at lower taxonomic levels such as suborders, families, or subfamilies. |
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Our phylogenetic results indicate that the giant muntjac is relatively closer to Muntiacus reevesi than to other muntjacs and may be placed in the genus Muntiacus. |
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The present study, as well as previous molecular studies, suggest that the oegopsid squids represent a polyphyletic group with uncertain phylogenetic affinities. |
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Orders that are characterized by oogamy and are reported to have large female gametes have the largest nuclear genomes observed regardless of their phylogenetic position. |
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The lasting contribution of the book is in its summary of avian distributions and natural history, not in the phylogenetic interpretation of speciation and biogeography. |
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Historical biogeography deals with phylogenetic patterns among species and higher lineages attributable to relatively ancient events in earth history. |
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The only other discrete difference appears to be the vesiculate swellings in the peridium, and the phylogenetic significance of this trait is poorly defined. |
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This programme increases knowledge and understanding of the biosystematics of both floras by improving description of their taxonomy and phylogenetic relationships. |
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The next generation of advances in macroevolution and evolutionary paleoecology will not occur until a well-tested phylogenetic classification is established. |
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The parameters used in the parametric bootstrap simulations were the phylogenetic tree generated from the aligned protein sequences and a residue substitution matrix. |
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Parrotfishes have traditionally been given their own family but current phylogenetic data suggest that parrotfishes are one radiation within the Labridae. |
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Balfour's approach was based firmly on homology of the germ layers and the ability of embryological homology to reveal phylogenetic relationships. |
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Third, substantial phylogenetic evidence from both morphology and molecular data indicates that acanthocephalans have a close evolutionary relationship with Rotifera. |
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Most Paleozoic insects are known only by their wing venation since wings are the least degradable parts of insects, so phylogenetic schemes will rely on venational characters. |
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Furthermore, as is typical of many phylogenetic problematica, myzostomids feature a mixture of characteristics that suggest affinities with disparate taxa. |
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However, species may hybridize long after speciation, which may pose problems in phylogenetic reconstruction, especially when molecular data are used. |
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Besides these phylogenetic analyses, recombination events were occasionally observed between transferring alleles of silver crucian carp and color crucian carp. |
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The phylogenetic position of nemerteans remains controversial. |
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Thus, three blocks were finally selected, and they were concatenated together with blocks from other proteins for subsequent phylogenetic analyses. |
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We also note that atherinomorphs have periodic acid Schiff-positive yolk, but the phylogenetic significance of this observation remains to be determined with further surveys. |
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The examination of these and other measures to detect changes of gene function along branches of a phylogenetic tree will become increasingly important in the postgenomic era. |
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Potentially incongruent phylogenetic relationships found for different genes might not result from HGT at all but may be due to inadequate phylogenetic signals. |
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Attempts to discriminate between phylogenetic patterns of concrescence or differentiation among serially homologous elements are therefore entirely futile. |
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Clearly, it is extremely difficult to reconcile whether phylogenetic differentiation or concrescence is responsible for a decrease in the number of skeletal elements. |
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Our phylogenetic analysis demonstrates that glyphcoids are legitimate members of the infraorder Astacidea and defines their relationship to other taxa within the clade. |
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Slikas et al. performed a phylogenetic analysis for several Micronesian white-eyes, but did not investigate the position of white-eyes among sylvioids. |
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They represent the segmental architecture of our phylogenetic ancestors. |
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A phylogenetic analysis of monocotyledons based on the chloroplast gene rps4, using parsimony and a new numerical phenetics method. |
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As we will discuss later, our phylogenetic hypothesis reconstructs the presence of ossicones as a basal feature of all the giraffomorphs. |
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This view has been challenged by the hypothesis that the Celtic languages of the British Isles form a phylogenetic Insular Celtic dialect group. |
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These techniques, especially multiple sequence alignment, are used in studying phylogenetic relationships and protein function. |
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Often taxonomists prefer to use phylogenetic analysis to determine whether a population can be considered a subspecies. |
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Second, we used the recursive multitree approach implemented in the R package bGMYC to incorporate phylogenetic uncertainty. |
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Molecular phylogenetic studies conclude that bryophytes are the earliest diverging lineages of the extant land plants. |
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Essentially, plankton are defined by their ecological niche rather than any phylogenetic or taxonomic classification. |
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In a phylogenetic study on silica transport genes from 8 diverse groups of diatoms, silica transport was found to generally group with species. |
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The phylogenetic relationships of the different groups of bats have been the subject of much debate. |
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The following list is based on molecular and phylogenetic studies by zoologists such as Groves and Grubb. |
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In 2004, a molecular phylogenetic study indicated both of these species should be included in Mentha. |
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It was supported by morphological studies, but never received strong support in molecular phylogenetic studies. |
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Although most of them focus on sequence data, some of them include phylogenetic or functional information. |
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A phylogenetic study suggests the Polyplacophora form a clade with a monophyletic Aplacophora. |
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The process is similar to the process of evolution, where the process of descent with modification leads to the formation of a phylogenetic tree. |
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When a new branching in a tree is discovered, some phylogenetic names will change, but by definition all mutational names will remain the same. |
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At the species level, endemicity may be even higher, as phylogenetic studies have uncovered substantial hidden diversity. |
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This phylogenetic study has made the need for a revision of the genus even clearer. |
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Until more detailed phylogenetic work is done to elucidate their true relationships, it seems best to leave all these species unplaced. |
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Evolution and phylogenetic information content of mitochondrial genomic structural features illustrated with Acrodont lizards. |
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A phylogenetic analysis of recent Anseriform genera using morphological characters. |
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A molecular phylogenetic analysis classifies HEV into four major genotypes. |
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Phylogeny and phylogenetic classification of the tyrant flycatchers, cotingas, manakins, and their allies. |
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Research to date often has a narrow focus, lacks a broad phylogenetic and temporal context, and rarely incorporates information on taphonomy. |
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Situating the phylogenetic origins of Testudines remains a continuing challenge. |
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The unrooted phylogenetic neighbor-joining tree was constructed using 15 MS markers that clearly differentiated among five native chicken lines. |
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The tracheid-long scalariform-short simple vessel element transformation series has been invoked over and over at many phylogenetic scales. |
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Insertion events of CRI retrotransposable elements elucidate the phylogenetic branching order in galliform birds. |
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A reanalysis of Acrocranthosaurus atokensis, its phylogenetic status, and paleobiogeographic implications, based on a new specimen from Texas. |
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Cuticular features have been used extensively in paleobotanical and phylogenetic interpretations. |
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As already reported elsewhere, the present phylogenetic analysis supported monophyly of Schistosomatidae and paraphyly of Spirorchiidae. |
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Their phylogenetic analysis indicates that Serrodiscus sensu lato should be restricted to include species with mostly entirely effaced glabellae. |
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A Bayesian phylogenetic tree was generated on the basis of the full-length NS1 proteins of MpBuV, human BuVs, and representative parvoviruses. |
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With recent advances in molecular systematics, biologists have been able to better resolve phylogenetic relationships within Porifera. |
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Nonetheless, rhacophorid evolution, specially on Borneo, has not been studied within a phylogenetic context. |
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However, there has been little consensus concerning the circumscription or phylogenetic position of this subfamily. |
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A molecular phylogenetic study using sequences of three cpDNA loci revealed the polyphyly of Thelypteridaceae. |
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Diversification of lindsaeoid ferns and phylogenetic uncertainty of early polypod relationships. |
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The existence of homoplasy does not necessarily mean that the character does not contain a phylogenetic signal. |
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Homoplasy will obscure the value of many clearly diagnostic states in phylogenetic analysis. |
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A phylogenetic and population genetics analysis is helpful in understanding historical and current patterns of connectivity and genetic diversity. |
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They drew a phylogenetic tree based on the sequences of these Indian swine isolates, and genomic sequences of HEV isolates from humans and animals. |
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Beutel, Friedrich, Ge, and Yang offer this graduate entomology text focusing on morphological determination and verification of phylogenetic relationships among insects. |
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Although spatial scale is known to be important to understand community structure, current knowledge on spatial variation of functional and phylogenetic diversity is limited. |
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Here we suggest emphasis on the techniques of cladistics because they provide a clear means of organizing phylogenetic information in branching diagrams. |
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Palynological characters and their phylogenetic signal in Rubiaceae. |
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These statements reflect recent paleobiological and molecular phylogenetic developments and hopefully will serve as a template for further investigation. |
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These conserved cDNA have the highest potential for studying syntenic relationships and phylogenetic differences between angiosperm and gymnosperm plants. |
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Continual improvement of phylogenetic hypotheses and associated improvements in nomenclature to reflect that increased knowledge is advocated by Practicing Cladists. |
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Principal well-supported clades recovered in the phylogenetic analyses provided the foundation upon which we assessed phenotypic differences to make generic recommendations. |
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A preliminary phylogenetic analysis of sporogenesis in Pteridophytes. |
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Description of the first Recent macropterous species of Vianaidinae with comments on the phylogenetic relationships of the family within the Cimicomoprha. |
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The term yeast often used as a synonym with Saccharomyces cerevisiae, but phylogenetic diversity of yeasts are expressed into two classified as basidiomycetes and ascomycetes. |
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The relatively large size of the Giant Scops Owl represents an autapomorphy but its phylogenetic position as a terminal lineage does not warrant genus status. |
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We discuss the multiple convergent evolutions in ovariole number and the potential link between a reduction of ovariole number and troglobiomorphism in a phylogenetic context. |
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Similarly this concept of unity provided a powerful impetus for embryological studies and the idea that fetal development recapitulates the steps of phylogenetic development. |
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A 2011 study using detailed analyses of the morphology of giraffes, and application of the phylogenetic species concept, described eight species of living giraffes. |
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More recent morphological phylogenetic studies with this in mind placed turtles firmly within diapsids, slightly closer to Squamata than to Archosauria. |
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The phylogenetic relationships within the family and the genetic distances among some taxa highlight inconsistencies in the current taxonomic classification of the family. |
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Beginning in around 1990 a series of phylogenetic studies based on mitochondrial and nuclear DNA sequences resulted in substantial revisions being made to the taxonomy. |
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Since 76 percent of rodent genera contain only one species, much phylogenetic diversity could be lost with a comparatively small number of extinctions. |
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A phylogenetic or cladistic species is an evolutionarily divergent lineage, one that has maintained its hereditary integrity through time and space. |
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There have been a number of efforts to address phylogenetic studies. |
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Widespread paraphylies were observed in many phylogenetic studies. |
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More recently, phylogenetic research has questioned whether the bryophytes form a monophyletic group and thus whether they should form a single taxon. |
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Species infected with Bd covered a wide phylogenetic range including four species of plethodontid salamanders, three species of toads, five hylid frogs, and four ranid frogs. |
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These results corroborate our expectation of a stronger effect of host-plant phylogenetic isolation on endophage diversity than on exophage diversity. |
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