Evolution of Neo-Sex Chromosomes in Silene diclinis
نویسندگان
چکیده
منابع مشابه
Evolution of neo-sex chromosomes in Silene diclinis.
A small cluster of dioecious species in the plant genus Silene has evolved chromosomal sex determination and sex chromosomes relatively recently, within the last 10 million years (MY). Five dioecious Silene species (section Elisanthe) are very closely related (1-2 MY of divergence) and it was previously thought that all five have similar sex chromosomes. Here we demonstrate that in one of these...
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Classical studies have established that, during meiosis, the X and Y chromosomes of the model dioecious plant Silene latifolia pair over a region at the ends of their q arms. We used fluorescence in situ hybridization of two molecular markers to demonstrate that this widely accepted model is incorrect. From these data we conclude that the homologous arm of the X chromosome is the p arm and that...
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ژورنال
عنوان ژورنال: Genetics
سال: 2009
ISSN: 1943-2631
DOI: 10.1534/genetics.109.103580