Evaluating the Presence of Interspecific Hybrids Among Piaractus mesopotamicus, Piaractus brachypomus and Colossoma macropomum in the Upper Paraná River Using Genetic Markers

IF 2.5 3区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Lidiany Doreto Cavalcanti, Lara Darice Lima, Juliana Rosa Carrijo-Mauad, Márcia Regina Russo, Alessandra Valéria de Oliveira, Ricardo Massato Takemoto
{"title":"Evaluating the Presence of Interspecific Hybrids Among Piaractus mesopotamicus, Piaractus brachypomus and Colossoma macropomum in the Upper Paraná River Using Genetic Markers","authors":"Lidiany Doreto Cavalcanti,&nbsp;Lara Darice Lima,&nbsp;Juliana Rosa Carrijo-Mauad,&nbsp;Márcia Regina Russo,&nbsp;Alessandra Valéria de Oliveira,&nbsp;Ricardo Massato Takemoto","doi":"10.1002/aqc.4262","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Fish hybridization is common in aquaculture worldwide, including in Brazil, with cross-breeding between species of the genera <i>Piaractus</i> and <i>Colossoma</i> taking the lead. However, little is known about the genetic damage caused by hybrids that escape into natural environments. In the upper Paraná River region, hybrid fishes are overproduced; therefore, the use of molecular techniques for their monitoring and identification is necessary. This study aimed to detect the presence of possible hybridization between <i>Piaractus</i> and <i>Colossoma</i> in the upper Paraná River using the molecular markers cytochrome <i>c</i> oxidase subunit 1 (COI) and α-tropomyosin (TROP). Fragments from 53 fish samples were analysed, and 41 samples were considered hybrids, with 12 confirmed pure, six as <i>Piaractus mesopotamicus</i> (pacu) and six as <i>Piaractus brachypomus</i> (pirapitinga). This is the first record of <i>P. brachypomus</i>, which is an invasive species in this basin, while <i>Colossoma macropomum</i> has not been observed. Molecular markers efficiently detected hybrids in the Ivinhema and Paraná rivers. The results showed a predominance of hybrid specimens from <i>P. mesopotamicus</i> × <i>P. brachypomus</i>. Our study suggests that more restrictions on hybridization and better supervision of fish farms are needed to prevent the escape of hybrids and the consequent ecological and genetic damage to native populations. We warn of the risk of a decline in the population of <i>P. mesopotamicus</i>, as this species is of great importance for fishing and maintaining the ecosystem.</p>\n </div>","PeriodicalId":55493,"journal":{"name":"Aquatic Conservation-Marine and Freshwater Ecosystems","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Aquatic Conservation-Marine and Freshwater Ecosystems","FirstCategoryId":"93","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/aqc.4262","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0

Abstract

Fish hybridization is common in aquaculture worldwide, including in Brazil, with cross-breeding between species of the genera Piaractus and Colossoma taking the lead. However, little is known about the genetic damage caused by hybrids that escape into natural environments. In the upper Paraná River region, hybrid fishes are overproduced; therefore, the use of molecular techniques for their monitoring and identification is necessary. This study aimed to detect the presence of possible hybridization between Piaractus and Colossoma in the upper Paraná River using the molecular markers cytochrome c oxidase subunit 1 (COI) and α-tropomyosin (TROP). Fragments from 53 fish samples were analysed, and 41 samples were considered hybrids, with 12 confirmed pure, six as Piaractus mesopotamicus (pacu) and six as Piaractus brachypomus (pirapitinga). This is the first record of P. brachypomus, which is an invasive species in this basin, while Colossoma macropomum has not been observed. Molecular markers efficiently detected hybrids in the Ivinhema and Paraná rivers. The results showed a predominance of hybrid specimens from P. mesopotamicus × P. brachypomus. Our study suggests that more restrictions on hybridization and better supervision of fish farms are needed to prevent the escape of hybrids and the consequent ecological and genetic damage to native populations. We warn of the risk of a decline in the population of P. mesopotamicus, as this species is of great importance for fishing and maintaining the ecosystem.

利用遗传标记评估巴拉那河上游中柱鱼、红柱鱼和大疣藻之间是否存在种间杂交种
鱼类杂交在世界各地的水产养殖中都很常见,巴西也不例外,其中以 Piaractus 属和 Colossoma 属鱼类之间的杂交最为普遍。然而,人们对杂交鱼逃逸到自然环境中造成的遗传损害知之甚少。在巴拉那河上游地区,杂交鱼类生产过剩,因此有必要使用分子技术对其进行监测和鉴定。本研究旨在利用细胞色素 c 氧化酶亚单位 1(COI)和α-托肌酶(TROP)分子标记检测巴拉那河上游 Piaractus 和 Colossoma 之间可能存在的杂交。对 53 个鱼类样本的片段进行了分析,其中 41 个样本被认为是杂交种,12 个样本被确认为纯种,6 个样本被确认为 Piaractus mesopotamicus(pacu),6 个样本被确认为 Piaractus brachypomus(pirapitinga)。这是首次记录到 P. brachypomus,它是该流域的入侵物种,而 Colossoma macropomum 则从未被观察到。分子标记有效地检测了伊文赫马河和巴拉那河中的杂交种。结果表明,杂交标本主要来自 P. mesopotamicus × P. brachypomus。我们的研究表明,需要对杂交进行更多限制,并对养鱼场进行更好的监管,以防止杂交鱼逃逸,从而对本地种群的生态和基因造成破坏。我们警告介壳虫种群数量下降的风险,因为该物种对捕鱼和维持生态系统非常重要。
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
Aquatic Conservation-Marine and Freshwater Ecosystems
Aquatic Conservation-Marine and Freshwater Ecosystems 环境科学-海洋与淡水生物学
CiteScore
5.50
自引率
4.20%
发文量
143
审稿时长
18-36 weeks
期刊介绍: Aquatic Conservation: Marine and Freshwater Ecosystems is an international journal dedicated to publishing original papers that relate specifically to freshwater, brackish or marine habitats and encouraging work that spans these ecosystems. This journal provides a forum in which all aspects of the conservation of aquatic biological resources can be presented and discussed, enabling greater cooperation and efficiency in solving problems in aquatic resource conservation.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信