Analysis of “historical” DNA of museum samples resolve taxonomic, nomenclature and biogeography issues: case study of true lemmings

Q3 Agricultural and Biological Sciences
N. Abramson, T. Petrova, N. Dokuchaev
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引用次数: 1

Abstract

Historical DNA of museum specimens is of paramount importance in elucidation of complex nomenclature issues and a priceless source of material gathered during preceding centuries in hardly accessible today sites. Here we report the results of genotyping type specimens of Lemmus obensis bungei Vinogradov, 1925 from the collection of the Zoological Institute RAS and specimens of lemmings from the upper streams of the Omolon River, identified as L. amurensis from the collection of the Institute of Systematics and Ecology of Animals, Siberian branch of RAS. The genetic profile of the type specimens in the first case was crucial for the nomenclatural solution as these specimens are from the point of the major evolutionary divergence on the Lena River. The results of the study convincingly showed that the lectotype belong to the eastern mitochondrial lineage of L. sibiricus. Therefore, if ever in the further studies it would be conclusively shown that this mitochondrial lineage may become a valid taxon of any rank, then names “novosibiricus”, “ognevi”, “portenkoi” will become younger synonyms of “bungei”. The new obtained sequences of the specimens from the Omolon prove initially wrong assignment and represent L. sibiricus eastern lineage.
博物馆标本的“历史”DNA分析解决了分类学、命名学和生物地理学问题:真旅鼠的案例研究
博物馆标本的历史DNA对于解释复杂的命名问题至关重要,也是前几个世纪在今天难以进入的地点收集的无价材料来源。本文报道了俄罗斯科学院动物研究所收集的1925年的鼠鼠(Lemmus obensis bungei Vinogradov)和俄罗斯科学院西伯利亚分院动物系统学与生态学研究所收集的俄莫伦河上游的鼠鼠(L. amurensis)的基因分型结果。在第一种情况下,模式标本的遗传谱对于命名解决方案至关重要,因为这些标本来自勒拿河上的主要进化分歧点。研究结果令人信服地表明,该选型属于西伯利亚鼠东部线粒体谱系。因此,如果在进一步的研究中,最终表明这一线粒体谱系可能成为任何等级的有效分类单元,那么“novosibiricus”,“ognevi”,“portenkoi”将成为“bungei”的年轻同义词。新获得的欧莫龙标本序列证明了最初的错误定位,并代表了西伯利亚鼠东部谱系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Biological Communications
Biological Communications Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)
CiteScore
1.70
自引率
0.00%
发文量
21
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