Rapid turnover and evolution of sex-determining regions in Sebastes rockfishes

IF 4.5 1区生物学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Molecular Ecology Pub Date : 2023-08-07 DOI:10.1111/mec.17090

Nathan T. B. Sykes, Sree Rohit Raj Kolora, Peter H. Sudmant, Gregory L. Owens

{"title":"Rapid turnover and evolution of sex-determining regions in Sebastes rockfishes","authors":"Nathan T. B. Sykes, Sree Rohit Raj Kolora, Peter H. Sudmant, Gregory L. Owens","doi":"10.1111/mec.17090","DOIUrl":null,"url":null,"abstract":"Nature has evolved a wealth of sex determination (SD) mechanisms, driven by both genetic and environmental factors. Recent studies of SD in fishes have shown that not all taxa fit the classic paradigm of sex chromosome evolution and diverse SD methods can be found even among closely related species. Here, we apply a suite of genomic approaches to investigate sex-biased genomic variation in eight species of Sebastes rockfish found in the northeast Pacific Ocean. Using recently assembled chromosome-level rockfish genomes, we leverage published sequence data to identify disparate sex chromosomes and sex-biased loci in five species. We identify two putative male sex chromosomes in S. diaconus, a single putative sex chromosome in the sibling species S. carnatus and S. chrysomelas, and an unplaced sex determining contig in the sibling species S. miniatus and S. crocotulus. Our study provides evidence for disparate means of sex determination within a recently diverged set of species and sheds light on the diverse origins of sex determination mechanisms present in the animal kingdom.","PeriodicalId":210,"journal":{"name":"Molecular Ecology","volume":"32 18","pages":"5013-5027"},"PeriodicalIF":4.5000,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/mec.17090","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Molecular Ecology","FirstCategoryId":"99","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/mec.17090","RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

Nature has evolved a wealth of sex determination (SD) mechanisms, driven by both genetic and environmental factors. Recent studies of SD in fishes have shown that not all taxa fit the classic paradigm of sex chromosome evolution and diverse SD methods can be found even among closely related species. Here, we apply a suite of genomic approaches to investigate sex-biased genomic variation in eight species of Sebastes rockfish found in the northeast Pacific Ocean. Using recently assembled chromosome-level rockfish genomes, we leverage published sequence data to identify disparate sex chromosomes and sex-biased loci in five species. We identify two putative male sex chromosomes in S. diaconus, a single putative sex chromosome in the sibling species S. carnatus and S. chrysomelas, and an unplaced sex determining contig in the sibling species S. miniatus and S. crocotulus. Our study provides evidence for disparate means of sex determination within a recently diverged set of species and sheds light on the diverse origins of sex determination mechanisms present in the animal kingdom.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

sebases岩鱼性别决定区域的快速更替和进化

在遗传和环境因素的共同作用下，自然界进化出了丰富的性别决定机制。最近对鱼类的SD研究表明，并非所有分类群都符合性染色体进化的经典范式，即使在近亲物种中也可以发现多种SD方法。在这里，我们应用了一套基因组方法来研究在东北太平洋发现的八种sebases岩鱼的性别偏倚基因组变异。利用最近组装的染色体水平的岩鱼基因组，我们利用已发表的序列数据来识别五个物种中不同的性染色体和性别偏向的位点。我们在S. diaconus中发现了两条推测的雄性性染色体，在S. carnatus和S. chrysomelas的兄弟物种中发现了一条推测的性染色体，在S. miniatus和S. crocotulus的兄弟物种中发现了一条未定位的性别决定染色体。我们的研究为最近分化的一组物种中不同的性别决定方式提供了证据，并揭示了动物王国中性别决定机制的不同起源。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Molecular Ecology 生物-进化生物学

CiteScore

8.40

自引率

10.20%

发文量

472

审稿时长

1 months

期刊介绍： Molecular Ecology publishes papers that utilize molecular genetic techniques to address consequential questions in ecology, evolution, behaviour and conservation. Studies may employ neutral markers for inference about ecological and evolutionary processes or examine ecologically important genes and their products directly. We discourage papers that are primarily descriptive and are relevant only to the taxon being studied. Papers reporting on molecular marker development, molecular diagnostics, barcoding, or DNA taxonomy, or technical methods should be re-directed to our sister journal, Molecular Ecology Resources. Likewise, papers with a strongly applied focus should be submitted to Evolutionary Applications. Research areas of interest to Molecular Ecology include: * population structure and phylogeography * reproductive strategies * relatedness and kin selection * sex allocation * population genetic theory * analytical methods development * conservation genetics * speciation genetics * microbial biodiversity * evolutionary dynamics of QTLs * ecological interactions * molecular adaptation and environmental genomics * impact of genetically modified organisms