宾夕法尼亚洞穴双桨：群体遗传学

IF 1.3 3区生物学 Q2 ZOOLOGY

Subterranean Biology Pub Date : 2021-04-12 DOI:10.3897/SUBTBIOL.38.60865

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

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引用次数: 0

摘要

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。

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The Pennsylvania grotto sculpin: population genetics

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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来源期刊

Subterranean Biology ZOOLOGY-

CiteScore

2.50

自引率

18.20%

发文量

审稿时长

6 weeks

期刊介绍： Subterranean Biology is an international journal published by Pensoft on behalf of the International Society for Subterranean Biology [SIBIOS-ISSB] for the publication of original and significant contributions on all aspects of subterranean life. The Journal will consider original scientific papers dealing with any aspect of subterranean ecosystems and their components focusing on biology, ecology, evolution and conservation. Reviews and Commentaries: The journal welcomes review articles on aspects of subterranean biology. They should be submitted in the same way as research articles but use a simple layout with no more than three levels of headings. Commentaries on previous matter published in the journal may be also considered. Both reviews and commentaries will be reviewed. Book Reviews: Reviews of books, symposia volumes and conferences pertinent to the journal are welcome. The journal publishes electronic versions of the articles when these are ready to publish, without delays that might be caused by completion of an issue. These electronic versions are not "pre-prints" but final and immutable (Version of Record), hence available for the purposes of biological nomenclature. The date indicated on the electronic version is to be considered the actual publication date.