Population genetics of the capybara, Hydrochoerus hydrochaeris, in the Chaco-pampean region

Hydrochoerus hydrochaeris is an herbivorous rodent that inhabits most wetlands of South America. It is a well-known species, but studies about their population genetics are scarce. The aim of this study was to analyze the genetic diversity, population genetic structure and historical population dyna...

Descripción completa

Guardado en:

Detalles Bibliográficos
Publicado:	2019
Materias:	Historical population dynamics Hydrochoerus hydrochaeris Mitochondrial DNA control region Population genetic structure Hydrochaeris hydrochaeris Rodentia
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16165047_v96_n_p14_Byrne http://hdl.handle.net/20.500.12110/paper_16165047_v96_n_p14_Byrne
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_16165047_v96_n_p14_Byrne
record_format	dspace
spelling	paper:paper_16165047_v96_n_p14_Byrne2023-06-08T16:25:28Z Population genetics of the capybara, Hydrochoerus hydrochaeris, in the Chaco-pampean region Historical population dynamics Hydrochoerus hydrochaeris Mitochondrial DNA control region Population genetic structure Hydrochaeris hydrochaeris Rodentia Hydrochoerus hydrochaeris is an herbivorous rodent that inhabits most wetlands of South America. It is a well-known species, but studies about their population genetics are scarce. The aim of this study was to analyze the genetic diversity, population genetic structure and historical population dynamics of the species in the Chaco-pampean region, using mitochondrial DNA control region sequences and a non-invasive sampling design. Our results showed the existence of four haplogroups in the study area. Haplogroup I is composed by individuals from most of the study area, while the remaining include individuals from some sites in Paraguay (haplogroups III and IV) or Argentina (haplogroup II). The genetic diversity was low in haplogroups I, III and IV. Our results suggest that the Paraná and Paraguay rivers would be acting as a migration corridor for the species. Historical population dynamics analyses and haplotype network showed past population expansions and secondary contact between haplogroups I–II and I–IV, which could be related to past climatic events such as the Iberá Wetlands formation. These results must be taken as working hypotheses for future studies about the population genetics of capybara and related species inhabiting the region. © 2019 Deutsche Gesellschaft für Säugetierkunde 2019 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16165047_v96_n_p14_Byrne http://hdl.handle.net/20.500.12110/paper_16165047_v96_n_p14_Byrne
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Historical population dynamics Hydrochoerus hydrochaeris Mitochondrial DNA control region Population genetic structure Hydrochaeris hydrochaeris Rodentia
spellingShingle	Historical population dynamics Hydrochoerus hydrochaeris Mitochondrial DNA control region Population genetic structure Hydrochaeris hydrochaeris Rodentia Population genetics of the capybara, Hydrochoerus hydrochaeris, in the Chaco-pampean region
topic_facet	Historical population dynamics Hydrochoerus hydrochaeris Mitochondrial DNA control region Population genetic structure Hydrochaeris hydrochaeris Rodentia
description	Hydrochoerus hydrochaeris is an herbivorous rodent that inhabits most wetlands of South America. It is a well-known species, but studies about their population genetics are scarce. The aim of this study was to analyze the genetic diversity, population genetic structure and historical population dynamics of the species in the Chaco-pampean region, using mitochondrial DNA control region sequences and a non-invasive sampling design. Our results showed the existence of four haplogroups in the study area. Haplogroup I is composed by individuals from most of the study area, while the remaining include individuals from some sites in Paraguay (haplogroups III and IV) or Argentina (haplogroup II). The genetic diversity was low in haplogroups I, III and IV. Our results suggest that the Paraná and Paraguay rivers would be acting as a migration corridor for the species. Historical population dynamics analyses and haplotype network showed past population expansions and secondary contact between haplogroups I–II and I–IV, which could be related to past climatic events such as the Iberá Wetlands formation. These results must be taken as working hypotheses for future studies about the population genetics of capybara and related species inhabiting the region. © 2019 Deutsche Gesellschaft für Säugetierkunde
title	Population genetics of the capybara, Hydrochoerus hydrochaeris, in the Chaco-pampean region
title_short	Population genetics of the capybara, Hydrochoerus hydrochaeris, in the Chaco-pampean region
title_full	Population genetics of the capybara, Hydrochoerus hydrochaeris, in the Chaco-pampean region
title_fullStr	Population genetics of the capybara, Hydrochoerus hydrochaeris, in the Chaco-pampean region
title_full_unstemmed	Population genetics of the capybara, Hydrochoerus hydrochaeris, in the Chaco-pampean region
title_sort	population genetics of the capybara, hydrochoerus hydrochaeris, in the chaco-pampean region
publishDate	2019
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16165047_v96_n_p14_Byrne http://hdl.handle.net/20.500.12110/paper_16165047_v96_n_p14_Byrne
_version_	1768543103066570752

Population genetics of the capybara, Hydrochoerus hydrochaeris, in the Chaco-pampean region

Ejemplares similares