Defining regions and rearrangements of the Silene latifolia Y chromosome.

ABSTRACT: We combine data from published marker genotyping of three sets of S. latifolia Y chromosome deletion mutants with changed sex phenotypes and add genotypes for several new genic markers to refine the deletion map of the Y chromosome and compare it with the X chromosome genetic map. We conclude that the Y chromosome of this species has been derived through multiple rearrangements of the ancestral gene arrangement and that none of the rearrangements so far detected was involved in stopping X-Y recombination. Different Y genotypes may also differ in their gene content and possibly arrangements, suggesting that mapping the Y-linked sex-determining genes will be difficult, even if many further genic markers are obtained. Even in determining the map of Y chromosome markers to discover all the rea

SUBMITTER: Bergero R 

PROVIDER: S-EPMC2323795 | biostudies-literature | 2008 Apr

REPOSITORIES: biostudies-literature