Hidden Evolutionary Units and Its Implications on Conservation in a Vulnerable Species of a Freshwater Fish.

IF 1.4 4区生物学 Q4 DEVELOPMENTAL BIOLOGY

Zebrafish Pub Date : 2021-04-01 Epub Date: 2021-02-24 DOI:10.1089/zeb.2020.1916

Snaydia Viegas Resende, Iuri Batista Silva, Rubens Pasa, Alexandre Wagner Silva Hilsdorf, Karine Frehner Kavalco

{"title":"Hidden Evolutionary Units and Its Implications on Conservation in a Vulnerable Species of a Freshwater Fish.","authors":"Snaydia Viegas Resende, Iuri Batista Silva, Rubens Pasa, Alexandre Wagner Silva Hilsdorf, Karine Frehner Kavalco","doi":"10.1089/zeb.2020.1916","DOIUrl":null,"url":null,"abstract":"Brycon is a fish genus in the order Characiformes, distributed from southern Mexico to the La Plata River in Argentina. Several of its species, including Brycon nattereri, are threatened with extinction or considered vulnerable because they are highly sensitive to anthropogenic factors. The decline of these species may be related to the growth of agriculture and mining in the Brazilian Cerrado region, thus their recovery requires management plans. In this study, we use morphological, chromosomal, and genetic analysis to suggest that two distinct evolutionary units exist under the same denomination B. nattereri, indistinguishable by the descriptive morphological characters of the species until the present moment and show that the population of the São Francisco River is more diverse than that of the upper Paraná River basin. These results may help with future management and conservation programs of Brycon species in the Paraná and São Francisco river basins, two major Brazilian hydrographic basins.","PeriodicalId":23872,"journal":{"name":"Zebrafish","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zebrafish","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1089/zeb.2020.1916","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2021/2/24 0:00:00","PubModel":"Epub","JCR":"Q4","JCRName":"DEVELOPMENTAL BIOLOGY","Score":null,"Total":0}

引用次数: 2

Abstract

Brycon is a fish genus in the order Characiformes, distributed from southern Mexico to the La Plata River in Argentina. Several of its species, including Brycon nattereri, are threatened with extinction or considered vulnerable because they are highly sensitive to anthropogenic factors. The decline of these species may be related to the growth of agriculture and mining in the Brazilian Cerrado region, thus their recovery requires management plans. In this study, we use morphological, chromosomal, and genetic analysis to suggest that two distinct evolutionary units exist under the same denomination B. nattereri, indistinguishable by the descriptive morphological characters of the species until the present moment and show that the population of the São Francisco River is more diverse than that of the upper Paraná River basin. These results may help with future management and conservation programs of Brycon species in the Paraná and São Francisco river basins, two major Brazilian hydrographic basins.

查看原文本刊更多论文

一个淡水鱼脆弱物种的隐藏进化单位及其保护意义。

Brycon是一种鱼属，分布于墨西哥南部至阿根廷的拉普拉塔河。它的一些物种，包括Brycon nattereri，正面临灭绝的威胁或被认为是脆弱的，因为它们对人为因素高度敏感。这些物种的减少可能与巴西塞拉多地区农业和采矿业的增长有关，因此它们的恢复需要管理计划。在这项研究中，我们使用形态学、染色体和遗传分析表明，在相同的名称B. nattereri下存在两个不同的进化单位，直到现在都无法通过物种的描述性形态学特征来区分，并表明奥弗朗西斯科河流域的种群比上游帕拉纳河流域的种群更多样化。这些结果可能有助于未来管理和保护巴西两个主要水文盆地——帕拉纳河和奥弗朗西斯科河流域的Brycon物种。

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分钟内获得全文求助全文

来源期刊

Zebrafish DEVELOPMENTAL BIOLOGY-ZOOLOGY

CiteScore

3.60

自引率

5.00%

发文量

审稿时长

3 months

期刊介绍： Zebrafish is the only peer-reviewed journal dedicated to the central role of zebrafish and other aquarium species as models for the study of vertebrate development, evolution, toxicology, and human disease. Due to its prolific reproduction and the external development of the transparent embryo, the zebrafish is a prime model for genetic and developmental studies. While genetically more distant from humans, the vertebrate zebrafish nevertheless has comparable organs and tissues, such as heart, kidney, pancreas, bones, and cartilage. Zebrafish introduced the new section TechnoFish, which highlights these innovations for the general zebrafish community. TechnoFish features two types of articles: TechnoFish Previews: Important, generally useful technical advances or valuable transgenic lines TechnoFish Methods: Brief descriptions of new methods, reagents, or transgenic lines that will be of widespread use in the zebrafish community Zebrafish coverage includes: Comparative genomics and evolution Molecular/cellular mechanisms of cell growth Genetic analysis of embryogenesis and disease Toxicological and infectious disease models Models for neurological disorders and aging New methods, tools, and experimental approaches Zebrafish also includes research with other aquarium species such as medaka, Fugu, and Xiphophorus.