| Every second generation during backcrossing, we mated the first filial offspring of the parental backcross to recover the recessive phenotype. |
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| Therefore, there is the potential for gene introgression across species via backcross of hybrid females to the parental species. |
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| Alien cytoplasms and chromosomes have been introduced into wheat by cytologically monitoring the chromosomal constitution of backcross progenies in interspecific hybrids. |
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| Fertile hybrids may intercross or backcross with parental species, producing abundant genetic and phenotypic variation for natural selection. |
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| In the traditional backcross technique, there are no such monitoring steps, which may lead to unexpected and undesirable outcomes. |
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| These offspring are called allotriploid because they represent a backcross that produces three sets of chromosomes. |
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| The advantages of the backcross method are its rapidity, the small number of plants required, and the predictability of the outcome. |
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| Selfing the last backcross generation, coupled with selection, will give some progeny pure breeding for the genes being transferred. |
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| The populations derived from either the backcross or intercross design are considered. |
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| Detailed studies finally centered on one line that was segregating for sterility-that is, it was still producing a mixture of fertile and sterile offspring in the third generation after the second backcross to the parents. |
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| Independent assortment would be expected to give in the progeny of the backcross the following: 1 gray-long: 1 gray-vestigial: 1 black-long: 1 black-vestigial. |
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| But hybrid zones imply much more through introgressive hybridization where hybrids backcross with parental species. |
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| Six of the hybrid ram offspring were then bred to either Red Maasai or Dorper ewes to complete the backcross. |
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| Responses of F1 and backcross generations to disease-killed brood. |
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| Test-size lots of wine have been made from grapes of previous generations and currently are being made from fourth backcross generation selections. |
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| Backcross males having recombinant X chromosomes were genotyped and scored for fertility. |
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