The sex chromosomes of Silene latifolia revisited and revised.
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 of the Y chromosome is the q arm. The establishment of the proper orientation of the pseudoautosomal region is essential for mapping and evolutionary studies.
Institute of Biophysics, Academy of Sciences of the Czech Republic, CZ-612 65 Brno, Czech Republic.
Martina
M
Lengerova
Richard C
RC
Moore
Sarah R
SR
Grant
Boris
B
Vyskot
D002874:Chromosome Mapping; D019143:Evolution, Molecular; D017404:In Situ Hybridization, Fluorescence; D012730:Sex Chromosomes; D019849:Sex Determination Processes; D029751:Silene / Q000235:genetics*