hylogeography of Hypomasticus copelandii (Teleostei, Anostomidae) Reveals Distinct Genetic Lineages along Atlantic Coastal Drainages of Eastern Brazi

Autor(es)

Mendes, Izabela S. ^{[1, 2]} ; Melo, Bruno F. ^[3] ; Damasceno, Junio S. ^[2] ; Teixeira, Daniel F. ^{[1, 2]} ; Carvalho, Daniel C. ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] Univ Fed Minas Gerais, Post Grad Program Genet, BR-31270901 Belo Horizonte, MG - Brazil

^[2] Pontificia Univ Catolica Minas Gerais, Post Grad Program Vertebrate Biol, Conservat Genet Lab, PUC Minas, BR-30535610 Belo Horizonte, MG - Brazil

^[3] Amer Museum Nat Hist, Dept Ichthyol, Div Vertebrate Zool, New York, NY 10024 - USA

• Tipo de documento: Artigo Científico
• Fonte: DIVERSITY-BASEL; v. 14, n. 1 JAN 2022.
• Citações Web of Science: 0

Resumo

Hypomasticus copelandii is a Neotropical freshwater fish widely distributed across coastal drainages of southeastern Brazil, a highly impacted region of South America. The interspecific phylogenetic relationships within the genus and the taxonomic status of the species remain uncertain. Using two mitochondrial and one nuclear locus, we performed a phylogenetic, species delimitation, and time-calibrated analyses to test the hypothesis that H. copelandii is a species complex currently delimited by different Atlantic coastal systems. Results indicate that H. copelandii presents two well-delimited genetic lineages: one in the northern drainages of the Jucurucu, Mucuri and Doce rivers, and the other in the southern region represented by the Paraiba do Sul River Basin. The time-calibrated phylogeny indicated a split between the two genetic lineages at around 2.8 million years ago (Ma), which might be related to headwater capture events during the Plio-Pleistocene. The discovery of a distinct genetic lineage for H. copelandii suggests distinct management plans for the northern and southern drainages. Such hidden diversity within the H. copelandii provides useful information for taxonomy and conservation across a severely impacted region of Brazil. (AU)

• Processo FAPESP: 14/26508-3 - Filogenia da hiperdiversa ordem Characiformes (Teleostei: Ostariophysi) utilizando elementos ultraconservados
• Beneficiário: Claudio de Oliveira
• Modalidade de apoio: Auxílio à Pesquisa - Temático