The Pennsylvania grotto sculpin: population genetics

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-04-12 DOI:10.3897/SUBTBIOL.38.60865

L. Espinasa, Drake M. Smith, J. Lindquist

引用次数: 0

Abstract

The Pennsylvania grotto sculpin is known from just two caves of the Nippenose Valley in central Pennsylvania, USA. They exhibit emergent troglobitic morphological traits and are the second northern-most cave adapted fish in the world. Two mitochondrial (16S rRNA and D-loop gene) and one nuclear (S7 ribosomal protein gene intron) gene in both cave and epigean populations were sequenced. For the three markers, a large proportion of cave specimens possess unique haplotypes not found in their local surface counterparts, suggesting a vicariance in their evolutionary history. The cave population also has haplotypes from two separate lineages of surface sculpins of the Cottus cognatus/bairdii species complex. Since morphology, nuclear, and mitochondrial markers are not correlated among cave individuals, hybridization with introgression is suggested.

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宾夕法尼亚洞穴双桨：群体遗传学

宾夕法尼亚洞穴双鱼仅在美国宾夕法尼亚州中部尼佩诺斯山谷的两个洞穴中发现。它们表现出突出的三球虫形态特征，是世界上第二种最适合洞穴的北方鱼类。对洞穴和表观种群中的两个线粒体（16S rRNA和D-环基因）和一个核（S7核糖体蛋白基因内含子）基因进行了测序。对于这三个标记，很大一部分洞穴标本具有独特的单倍型，这在当地的地表标本中是找不到的，这表明它们在进化史上存在替代关系。洞穴种群也有来自Cottus cognatus/bairdii物种复合体的两个独立的表面双桨谱系的单倍型。由于洞穴个体之间的形态学、细胞核和线粒体标记物不相关，因此建议与渗入杂交。

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

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.