以东欧普通田鼠（Terricola）地下田鼠（啮齿目，田鼠亚科）的两种核型为例对异域哺乳动物形态的分类学解释

Taxonomic Interpretation of Allopatric Mammalian Forms on the Example of Two Karyoforms of Microtus (Terricola) subterraneus (Rodentia, Arvicolinae) from Eastern Europe.

作者信息

Baskevich M I, Bogdanov A S, Khlyap L A, Shvarts E A, Litvinova E M

机构信息

Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia.

Koltsov Institute of Developmental Biology, Russian Academy of Sciences, Moscow, Russia.

出版信息

Dokl Biol Sci. 2018 May;480(1):119-123. doi: 10.1134/S0012496618030134. Epub 2018 Jul 16.

DOI:10.1134/S0012496618030134

PMID:30009355

Abstract

New European pine vole records from the Novgorod, Kaluga, Voronezh, and Belgorod oblasts were studied by sequencing of the mtDNA cytb gene (1143 bp) and by karyotyping (routine staining and G-banding techniques). The results enabled us to summarize chromosome variability of this species throughout Eastern Europe. In the sample studied, two geographically replacing chromosomal forms have been identified: northern, 2n = 54 (Novgorod and Kaluga oblasts), and southern, 2n = 52 (Voronezh and, presumably, Belgorod oblasts). Our data make the boundaries of these two karyoforms in Eastern Europe more precise and testify to intraspecific level of their taxonomic differentiation.

摘要

通过对线粒体DNA细胞色素b基因（1143 bp）进行测序以及采用核型分析（常规染色和G带技术），对来自诺夫哥罗德、卡卢加、沃罗涅日和别尔哥罗德州的新欧洲松田鼠记录进行了研究。这些结果使我们能够总结该物种在整个东欧的染色体变异性。在所研究的样本中，已鉴定出两种地理上相互替代的染色体形式：北方型，2n = 54（诺夫哥罗德和卡卢加州），以及南方型，2n = 52（沃罗涅日以及可能的别尔哥罗德州）。我们的数据使东欧这两种核型的边界更加精确，并证明了它们在分类学上的分化处于种内水平。