Is the Center of Origin of Long-tailed Hamster Cricetulus longicaudatus Milne-Edwards 1867 (Rodentia, Cricetidae) Located in Tibet?

• Published in: Doklady. Biological sciences Vol. 479; no. 1; pp. 70 - 73
• Main Authors: Poplavskaya, N. S., Bannikova, A. A., Fang, Y., Sheftel, B. I., Ushakova, M. V., Surov, A. V., Lebedev, V. S.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-03-2018; Springer Nature B.V
• Subjects: Biomedical and Life Sciences; Cricetulus longicaudatus; Evolutionary Biology; General Biology; Life Sciences; Mitochondria; Mitochondrial DNA; Morphology; Plant Sciences; Population genetics; Tibet
• ISSN: 0012-4966; 1608-3105
• DOI: 10.1134/S0012496618020102

First data on morphological and mitochondrial variation in the long-tailed hamster
Cricetulus longicaudatus
is presented. In contrast to genetically monomorphic populations of Mongolia and Tuva, the northeastern part of the Qinghai–Tibetian Plateau was found to harbor several divergent mtDNA lineages. This pattern suggests a recent expansion of the long-tailed hamster to the northern part of its recent range, which started from Tibet, presumably, in the late Middle Pleistocene. Several populations from the northern edge of the species range were found to be morphologically but not genetically distinct. The apparent disagreement between genetic and morphological data can be explained by rapid morphological evolution in peripheral isolates.