Characterization of the West Siberian lineage of zokors (Mammalia, Rodentia, Spalacidae, Myospalacinae) and divergence in molar development

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-12-04 DOI:10.1017/jpa.2023.61

Semion E. Golovanov, V. Zazhigin

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引用次数: 0

Abstract

Zokors (Myospalacinae) continue to be the center of systematics discussions. Phylogenetic schemes based on molecular data do not always agree with each other, nor can phylogenetic schemes based on paleontological material be complete due to the only-partial description of West Siberian zokors. This paper tries to fill this gap and presents a description of the West Siberian lineage from the late early Pleistocene to the present, together with an analysis of molar development in other zokor lineages. We describe two new species and one subspecies (Myospalax myospalax krukoveri n. ssp., Myospalax convexus n. sp., Prosiphneus razdoleanensis n. sp.) ancestral to the extant Myospalax myospalax Laxmann, 1769. We also reveal differences in the ontogeny of molars of modern species that were not previously detailed. These differences, together with paleontological data, indicate that in the West Siberian lineage, peramorphosis occurred in the structure of the chewing surface (with the exception of the lower m1), whereas in all other zokor lineages, there was pedomorphosis. On the basis of these results, we suggest a new view on the systematics of Myospalacinae. UUID: http://zoobank.org/b06d6c99-1648-454b-9b95-4d869bfe8bdc

查看原文本刊更多论文

鼢鼠西西伯利亚系（哺乳纲，啮齿目，蛛形纲，啮齿目）的特征和臼齿发育的分化

Zokors (Myospalacinae)仍然是系统学讨论的中心。基于分子数据的系统发育方案并不总是相互一致的，基于古生物材料的系统发育方案也不完整，因为西西伯利亚动物的描述只是部分的。本文试图填补这一空白，提出了从早更新世晚期到现在的西西伯利亚谱系的描述，并分析了其他zokor谱系的臼齿发育。本文报道了2个新种和1个亚种(Myospalax Myospalax krukoveri n. ssp)。(2)现存Myospalax Myospalax Laxmann的祖先。我们还揭示了现代物种臼齿个体发育的差异，这在以前没有详细说明。这些差异，连同古生物学数据，表明在西西伯利亚谱系中，咀嚼面结构发生过形畸形(除了下m1)，而在所有其他zokor谱系中，有足形畸形。在此基础上，我们提出了一种新的系统学观点。UUID: http://zoobank.org/b06d6c99 - 1648 - 454 - b - 9 - b95 - 4 - d869bfe8bdc

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.