Comparison of the X and Y chromosome organization in Silene latifolia.
Here we compare gene orders on the Silene latifolia sex chromosomes. On the basis of the deletion mapping results (11 markers and 23 independent Y chromosome deletion lines used), we conclude that a part of the Y chromosome (covering a region corresponding to at least 23.9 cM on the X chromosome) has been inverted. The gradient in silent-site divergence suggests that this inversion took place after the recombination arrest in this region. Because recombination arrest events followed by Y chromosome rearrangements also have been found in the human Y chromosome, this process seems to be a general evolutionary pathway.
Zluvova
Jitka
J
Laboratory of Plant Developmental Genetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, 612 65 Brno, Czech Republic. jitka@ibp.cz
Janousek
Bohuslav
B
Negrutiu
Ioan
I
Vyskot
Boris
B
D007446:Chromosome Inversion / Q000235:genetics; D019143:Evolution, Molecular; D023061:Gene Order; D005819:Genetic Markers / Q000235:genetics; D029751:Silene / Q000235:genetics*; D014960:X Chromosome / Q000235:genetics*; D014998:Y Chromosome / Q000235:genetics*
D005819:Genetic Markers