The first chromosome study of the genera Calchas Birula, 1899 and Neocalchas Yağmur, Soleglad, Fet & Kovařík, 2013 (Scorpiones: Iuridae)

IF 0.6 4区生物学 Q4 ZOOLOGY

Zoology in the Middle East Pub Date : 2023-01-02 DOI:10.1080/09397140.2023.2172838

Ersen Aydın Yağmur, H. Koç, F. Yeşílyurt, F. Šťáhlavský

引用次数: 0

Abstract

The chromosomes of two species belonging to the scorpion family Iuridae are studied for the first time. Both analysed species displayed achiasmatic meiosis and no morphologically differentiated sex chromosomes; these features are typical for all scorpions. Both species possessed monocentric chromosomes, a characteristic specific to the entire parvorder Iurida. The karyotype of Calchas nordmanni Birula, 1899 is composed of 82 chromosomes, and the diploid number of chromosomes in Neocalchas gruberi is 40. Despite this conspicuous difference in 2n chromosome morphology is mainly acrocentric. Both species possess two pairs of the 18S rDNA clusters identified by FISH. A higher number of rDNA loci may represent an ancestral state for the parvorder Iurida.

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天蝎属(Calchas Birula, 1899)和新天蝎属(Neocalchas Yağmur, Soleglad, Fet & Kovařík, 2013)首次染色体研究(天蝎:天蝎科)

本文首次对蝎子科两种蝎子的染色体进行了研究。所分析的两种物种均表现为无交叉减数分裂和无形态分化的性染色体;这些特征是所有蝎子的典型特征。这两个物种都具有单中心染色体，这是整个小目的特征。nordmanni Birula, 1899的核型由82条染色体组成，Neocalchas gruberi的染色体二倍体数为40。尽管有这种显著的差异，2n染色体形态主要是顶中心的。这两个物种都具有FISH鉴定的两对18S rDNA簇。较高数量的rDNA位点可能代表了小目urida的祖先状态。

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

Zoology in the Middle East ZOOLOGY-

CiteScore

1.60

自引率

14.30%

发文量

审稿时长

>12 weeks

期刊介绍： Zoology in the Middle East is a journal which publishes original papers and review papers on ecology, zoogeography, animal biology, biodiversity, faunistics, systematics and morphology of the Middle East. It seeks to further the understanding of the Middle East as a zoogeographic unit and aims at improving the interchange of knowledge and ideas between specialists on different subjects and taxa.