Genetic population structure of Pseudoplatystoma corruscans (Siluriformes: Pimelodidae) and evidence of temporal variation in structure.

Autor: Rueda EC; Laboratorio de Genética, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Santa Fe, Argentina., Machado CB; Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Paulo, Brazil., Castro V; Laboratorio de Genética, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Santa Fe, Argentina., Braga-Silva A; Instituto Federal de Goiás, campus Jataí, Unidade Flamboyant, Jataí, Brazil., Ojeda G; Laboratorio de Genética, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Santa Fe, Argentina., Vargas F; Dirección de Fauna y Areas Naturales Protegidas, Subsecretaría de Ambiente. Secretaria de Desarrollo y ambiente, Resistencia, Argentina., Loretán G; Laboratorio de Genética, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Santa Fe, Argentina., Freitas PD; Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Paulo, Brazil., Galetti PM Jr; Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Paulo, Brazil., Ortí G; Department of Biological Sciences, The George Washington University, Washington, DC, USA.
Jazyk: angličtina
Zdroj: Journal of fish biology [J Fish Biol] 2023 May; Vol. 102 (5), pp. 1040-1048. Date of Electronic Publication: 2023 Mar 08.
DOI: 10.1111/jfb.15346
Abstrakt: Surubim (Pseudoplatystoma corruscans, Pimelodidae) are migratory catfish native to the rivers in the La Plata and São Francisco basins. They are piscivores that attain considerable body sizes and are a valuable economic resource. Surubim exhibits extensive migrations during its life cycle that may affect the population structure at vast geographic scales. The authors examined the genetic diversity and population genetic structure of P. corruscans using microsatellite markers from a comprehensive sampling of 260 individuals from the Upper and Lower Paraná River. They identified two well-differentiated genetic clusters corresponding to a natural geographic barrier historically separating Upper and Lower Paraná regions. They also demonstrated temporal variation in population genetic structure at a site in Lower Paraná close to the confluence with the Paraguay River, most likely explained by the influx of migrant fishes at certain times of the year.
(© 2023 Fisheries Society of the British Isles.)
Databáze: MEDLINE
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