title: Chromosomes and some issues of the evolution of the ground squirrel genus Citellus (Rodentia: Schiuridae).
mesh_terms: D000818:Animals; D001208:Asia; D005075:Biological Evolution; D002875:Chromosomes; D005260:Female; D007621:Karyotyping; D008297:Male; D009656:North America; D012426:Russia; D012589:Sciuridae / Q000145:classification*