Chromosomal polymorphism of mandarin vole, Microtus mandarinus (Rodentia).
The mitotic and meiotic chromosomes of mandarin vole, Microtus mandarinus Milne-Edwards, from Shandong Province of China were analyzed by conventional, G- and C-banding and Silver-staining techniques. We detected chromosomal polymorphism in the vole, exhibiting diploid chromosome numbers 2n = 48-50 and variable morphology of the 1st pair, one medium sized telocentric pair and the X chromosomes. Four types of karyotypes were revealed in the population. According to banding analysis, there were pericentric inversion, Robertsonian fusion and translocation in M. mandarinus karyotype evolution. The X displayed two different morphologies, which could be explained by prericentric inversion and a telocentric autosome translocation.
Wang
J X
JX
Department of Biology, School of Life Sciences, Shandong University, Jinan, P.R. China. jxwang@sdu.edu.cn
Zhao
X F
XF
Deng
Y
Y
Qi
H Y
HY
Wang
Z J
ZJ
D000818:Animals; D019677:Artificial Gene Fusion; D003411:Arvicolinae / Q000235:genetics*; D002681:China; D002871:Chromosome Banding; D007446:Chromosome Inversion; D002875:Chromosomes / Q000737:chemistry / Q000235:genetics*; D004171:Diploidy; D005260:Female; D014644:Genetic Variation; D017404:In Situ Hybridization, Fluorescence; D007621:Karyotyping; D008297:Male; D008540:Meiosis / Q000235:genetics; D008938:Mitosis / Q000235:genetics; D009697:Nucleolus Organizer Region / Q000235:genetics; D011110:Polymorphism, Genetic; D016622:Silver Staining; D014178:Translocation, Genetic / Q000235:genetics*