| Currently, six major tetraploid races are recognized and their diploid progenitors have been identified. |
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| The results of fluorescence cytophotometry showed that cells containing tetraploid nuclei gradually increased in number. |
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| Seeds of diploid wheats and primitive tetraploid wheats were obtained from Dr CI Kling. |
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| Recent molecular data indicate differences in molecular chromosome organization among the genomes of diploid, tetraploid, and hexaploid wheat. |
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| The grass seed mix should contain very little tetraploid varieties if heavy land is being reseeded. |
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| However, some tetraploid lines are facultatively apomictic and an individual plant may set seed both apomictically and sexually. |
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| Our studies on isogenic diploid and tetraploid cells show that tetraploids have increased chromosome instability during exponential growth. |
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| Abnormal diploid, triploid and tetraploid nuclei with separated dual color signals were clearly distinguishable from normal nuclei. |
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| The complete set of chromosomes has been duplicated in triploid and tetraploid nuclei. |
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| Two samples from the original data set were omitted because one was from a triploid plant and the other from a tetraploid. |
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| Moreover, tetraploid cells do not bud or show abnormal mitotic spindles when placed in water. |
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| Ten loci were omitted from this map for similar reasons as the tetraploid map. |
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| This tetraploid variety will produce large bronze-brown coloured blooms for an extended period of time and delight the consumer. |
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| First, of the population of tetraploid cells that enter stationary phase, both euploid and aneuploid members can be rescued by starvation in water. |
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| In all three polyploids, the respective tetraploid and hexaploid genome sizes are slightly larger than the corresponding multiple of the diploid subsp. glaucum. |
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| The derivation of our model centers on tetraploid species in which multivalent pairing is only one mechanism for chromosomal pairings during meioses. |
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| The first hypothesis assumes that triploidy is associated with the origin of parthenogenesis and that both diploid and tetraploid parthenogenetic forms are derived. |
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| This process is called mitotic slippage and yields tetraploid 4N cells. |
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| Using two diploid parents with 18 chromosomes each results in tetraploid progenies with 36 chromosomes. |
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| These so-called tetraploid cells can go on to form placental tissue but cannot thrive in the embryo proper. |
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| Of these, three could also pull off the trick of making a mouse when injected into a tetraploid blastocyst. |
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| Plants of this tetraploid hybrid were a compact 15 cm high and across and bloomed for three to four months in spring and fall. |
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| This species complex includes diploid and tetraploid forms in South Africa and Lesotho. |
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| This is actually a species complex that includes distinct diploid and tetraploid races. |
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| Physical containment strategies are required for preventing environmental release and interactions with wild populations of fertile tetraploid shellfish broodstock that are used to produce triploid shellfish. |
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| A viable tetraploid bivalve mollusk, which is capable of growth and maturation under natural conditions under which the corresponding normal diploid bivalve mollusks can naturally habit. |
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| All European S. inaequidens plants that have been studied are tetraploid, though the history of introduction in Europe suggests several independent introductions. |
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| To prevent spawning, sterile oysters are now cultured by crossbreeding tetraploid and diploid oysters. |
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| The basic diploid number is 48, while some are tetraploid with 96, and others hexaploid with 144 and octaploid with 192 chromosomes. |
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| They agreed on a strategy to sequence the genome of cultivated, tetraploid cotton. |
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| Description: Asparagus grown from green-purple, tender, healthy and clean shoots obtained from seedbeds of native asparagus, a tetraploid subspecies of Asparagus officinalis. |
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| Origin of the disjunct tetraploid Cardamine amporitana assessed with nuclear and chloroplast DNA sequence data. |
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| A tetraploid, toxic, herbaceous, tussock-forming perennial found in vineyards, dunes and pastures, it is native to coastal river systems and stony pastures of southern Africa. |
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