Variability in the amount of homoeologous pairing among F1 hybrids
نویسندگان
چکیده
منابع مشابه
Variability in the amount of homoeologous pairing among F1 hybrids
Genes involved in the exclusive pairing of homologous chromosomes have been described in several polyploid species but little is known about the activity of these genes in diploids (which have only one dose of each homoeologous genome). Analysis of the meiotic behaviour of species, natural and artificial hybrids and polyploids of Glandularia suggests that, in allopolyploids where homoeologous g...
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T h e use of telomeric C-bands in wheat-rye hybrids has made it possible to distinguish three types of wheat-wheat ( IBL) and wheat-rye associations (a, endto-end extremely distal; b , end-to-ed distal; and c, interstitial) between homoeologous chromosomes at different metaphase I stages (early, middle and late) and also to estimate the actual recombination frequencies for such associations at ...
متن کاملEffect of a rye B chromosome and its segments on homoeologous pairing in hybrids between common wheat and Aegilops variabilis.
Rye B chromosomes, which are supernumerary chromosomes dispensable for the host but increase in number by non-disjunction after meiosis, have been reported to affect meiotic homoeologous pairing in wheat-rye hybrids. The effect of a rye B chromosome (B) and its segments (B-9 and B-10) on homoeologous pairing was studied in hybrids between common wheat (2n=42) and Aegilops variabilis (2n=28), wi...
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ژورنال
عنوان ژورنال: AoB Plants
سال: 2016
ISSN: 2041-2851
DOI: 10.1093/aobpla/plw030