Molecular Markers Reveal a New and Possibly Threatened Species of Cnesterodon (Poeciliidae, Cnesterodontini) from the Upper Parana River Basin, Brazil

被引：1

作者：

Morais-Silva, Joao Paulo ^{[1
]}

Scorsim, Barbara ^{[1
]}

Goncalves, Geovana ^{[2
]}

Frota, Augusto ^{[1
]}

da Graca, Weferson Junio ^{[1
,3
,4
,5
]}

de Oliveira, Alessandra Valeria ^{[1
,4
,6
]}

机构：

[1] Univ Estadual Maringa UEM, Ctr Ciencias Biol, Dept Biol, Programa Posgrad Ecol Ambientes Aquat Continentai, Ave Colombo 5790, BR-87020900 Maringa, Parana, Brazil

[2] Univ Estadual Maringa UEM, Ctr Ciencias Biol, Dept Biol, Curso Grad Ciencias Biol, Maringa, Parana, Brazil

[3] Univ Estadual Maringa UEM, Ctr Ciencias Biol, Dept Biol, Maringa, Parana, Brazil

[4] Univ Estadual Maringa UEM, Ctr Ciencias Biol, Nucleo Pesquisas Limnol Ictiol & Aquicultura Nupe, Maringa, Parana, Brazil

[5] Univ Estadual Maringa UEM, Ctr Ciencias Biol, Dept Biol, Programa Posgrad Biol Comparada, Maringa, Parana, Brazil

[6] Univ Estadual Maringa UEM, Ctr Ciencias Biol, Dept Biotecnol Genet & Biol Celular, Maringa, Parana, Brazil

来源：

ZEBRAFISH | 2023年 / 20卷 / 01期

关键词：

Atlantic Forest; COI; endangered species; endemic species; ND2; CYPRINODONTIFORMES POECILIIDAE; FISH; DNA; DIVERSITY; CHARACIFORMES; LORICARIIDAE;

D O I：

10.1089/zeb.2022.0052

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Cnesterodon comprises 10 valid species occurring in the major river basins of South America. Recent ichthyofaunistic studies in the Ivai River basin, upper Parana River system, suggested the existence of a possible new species, which was identified as Cnesterodon sp. based on morphological characters. Currently, the use of molecular tools has proved to be fundamental in aiding phylogenetics and cataloging biodiversity; therefore, in this study, we molecularly characterize a possible new species of Cnesterodon from the Ivai River basin encoding the mitochondrial genes Cytochrome c Oxidase, subunit I (COI), and NADH dehydrogenase subunit 2 (ND2). The genetic differences found showed that this species really differs from the other Cnesterodon species, indicating that it is a distinct species, which is possibly already in serious danger of extinction since its habitat often suffers from human exploitation and its distribution is restricted to only two sites in the upper Ivai River basin, but it has disappeared in one of them.

引用

页码：37 / 45

页数：9

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