Sex-chromosome heterochromatin variation in the wood mouse, Apodemus sylvaticus.
Variation in heterochromatin content, as revealed by G- and C-banding, was studied in the sex chromosomes of the wood mouse, Apodemus sylvaticus. The sex-chromosome heterochromatin was also characterized by DAPI staining. Variation in sex chromatin was recorded in extremely large (giant) sex chromosomes in certain individuals and populations. In some individuals, the Y chromosome was the largest element of the complement. Different variants of both the X and Y chromosomes were found within a single population. The variation is therefore a type of population polymorphism and should not be used for taxonomic discrimination.
Nová
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P
Department of Zoology, Faculty of Science, Charles University, Prague, Czech Republic.
Reutter
B A
BA
Rábová
M
M
Zima
J
J
D000818:Animals; D014644:Genetic Variation; D006570:Heterochromatin / Q000235:genetics*; D007621:Karyotyping; D008297:Male; D009115:Muridae / Q000235:genetics*; D012730:Sex Chromosomes / Q000235:genetics*
D006570:Heterochromatin