Caracterización molecular de poblaciones venezolanas de Sigmodon hirsutus (Rodentia: Cricetidae)

Recent phylogenetic studies based on cytochrome b gene sequence, have determined that the species historically known as Sigmodon hispidus (Rodentia) from South America comprises a species S. hirsutus of paraphyletic origin. The aim of this study was to test the hypothesis that populations from Venez...

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Autores principales:	Lessmann, Janeth, Arrivillaga, Jazzmín, Aguilera, Marisol
Formato:	Online
Idioma:	spa
Publicado:	Universidad de Costa Rica 2011
Acceso en línea:	https://revistas.ucr.ac.cr/index.php/rbt/article/view/3141

id	RBT3141
record_format	ojs
spelling	RBT31412022-06-06T18:56:43Z Caracterización molecular de poblaciones venezolanas de Sigmodon hirsutus(Rodentia: Cricetidae) Caracterización molecular de poblaciones venezolanas de Sigmodon hirsutus (Rodentia: Cricetidae) Lessmann, Janeth Arrivillaga, Jazzmín Aguilera, Marisol Sigmodon hirsutus Venezuela cyto b parsimony analysis taxonomy citocromo b parsimonia análisis taxonomía Recent phylogenetic studies based on cytochrome b gene sequence, have determined that the spe-cies historically known as Sigmodon hispidus (Rodentia) from South America comprises a species S. hirsutus of paraphyletic origin. The aim of this study was to test the hypothesis that populations from Venezuela, represent the sensu strict form, ancestral haplotypes, and monophyletic subspecies. For this, 12 individual sequences from three localities of different biogeographic regions in Venezuela were evaluated and sequenced based on cyto b. Additionally, the sequences were used to develop a cladistic analysis and genetic distance calculations, and to compare this information with two individual sequences of Sigmodon specimens available in Genbank. Phylogenetic analyses show that the three populations of S. hirsutus of Venezuela form an ancestral and monophyletic subclade supported by high bootstrap values and significant genetic distance between subclade within the S. hirsutus. Besides, the existence of two lineages suggests two subspecies, S. hirsutus hirsutus from Venezuela, and S. hirsutusmexicanus from Mexico-Central America, but, both species need formal description. Recent phylogenetic studies based on cytochrome b gene sequence, have determined that the species historically known as Sigmodon hispidus (Rodentia) from South America comprises a species S. hirsutus of paraphyletic origin. The aim of this study was to test the hypothesis that populations from Venezuela, represent the sensu strict form, ancestral haplotypes, and monophyletic subspecies. For this, 12 individual sequences from three localities of different biogeographic regions in Venezuela were evaluated and sequenced based on cyto b. Additionally, the sequences were used to develop a cladistic analysis and genetic distance calculations, and to compare this information with two individual sequences of Sigmodon specimens available in Genbank. Phylogenetic analyses show that the three populations of S. hirsutus of Venezuela form an ancestral and monophyletic subclade supported by high bootstrap values and significant genetic distance between subclade within the S. hirsutus. Besides, the existence of two lineages suggests two subspecies, S. hirsutus hirsutus from Venezuela, and S. hirsutus mexicanus from Mexico-Central America, but, both species need formal description. Universidad de Costa Rica 2011-06-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/3141 10.15517/rbt.v0i0.3141 Revista de Biología Tropical; Vol. 59 No. 2 (2011): Volume 59 – Regular number 2 – June 2011; 795–807 Revista de Biología Tropical; Vol. 59 Núm. 2 (2011): Volumen 59 – Número regular 2 – Junio 2011; 795–807 Revista Biología Tropical; Vol. 59 N.º 2 (2011): Volume 59 – Regular number 2 – June 2011; 795–807 2215-2075 0034-7744 10.15517/rbt.v0i0 spa https://revistas.ucr.ac.cr/index.php/rbt/article/view/3141/3048 Copyright (c) 2011 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0
institution	Universidad de Costa Rica
collection	Revista de Biología Tropical
language	spa
format	Online
author	Lessmann, Janeth Arrivillaga, Jazzmín Aguilera, Marisol
spellingShingle	Lessmann, Janeth Arrivillaga, Jazzmín Aguilera, Marisol Caracterización molecular de poblaciones venezolanas de Sigmodon hirsutus (Rodentia: Cricetidae)
author_facet	Lessmann, Janeth Arrivillaga, Jazzmín Aguilera, Marisol
author_sort	Lessmann, Janeth
description	Recent phylogenetic studies based on cytochrome b gene sequence, have determined that the species historically known as Sigmodon hispidus (Rodentia) from South America comprises a species S. hirsutus of paraphyletic origin. The aim of this study was to test the hypothesis that populations from Venezuela, represent the sensu strict form, ancestral haplotypes, and monophyletic subspecies. For this, 12 individual sequences from three localities of different biogeographic regions in Venezuela were evaluated and sequenced based on cyto b. Additionally, the sequences were used to develop a cladistic analysis and genetic distance calculations, and to compare this information with two individual sequences of Sigmodon specimens available in Genbank. Phylogenetic analyses show that the three populations of S. hirsutus of Venezuela form an ancestral and monophyletic subclade supported by high bootstrap values and significant genetic distance between subclade within the S. hirsutus. Besides, the existence of two lineages suggests two subspecies, S. hirsutus hirsutus from Venezuela, and S. hirsutus mexicanus from Mexico-Central America, but, both species need formal description.
title	Caracterización molecular de poblaciones venezolanas de Sigmodon hirsutus (Rodentia: Cricetidae)
title_short	Caracterización molecular de poblaciones venezolanas de Sigmodon hirsutus (Rodentia: Cricetidae)
title_full	Caracterización molecular de poblaciones venezolanas de Sigmodon hirsutus (Rodentia: Cricetidae)
title_fullStr	Caracterización molecular de poblaciones venezolanas de Sigmodon hirsutus (Rodentia: Cricetidae)
title_full_unstemmed	Caracterización molecular de poblaciones venezolanas de Sigmodon hirsutus (Rodentia: Cricetidae)
title_sort	caracterización molecular de poblaciones venezolanas de sigmodon hirsutus (rodentia: cricetidae)
title_alt	Caracterización molecular de poblaciones venezolanas de Sigmodon hirsutus(Rodentia: Cricetidae)
publisher	Universidad de Costa Rica
publishDate	2011
url	https://revistas.ucr.ac.cr/index.php/rbt/article/view/3141
work_keys_str_mv	AT lessmannjaneth caracterizacionmoleculardepoblacionesvenezolanasdesigmodonhirsutusrodentiacricetidae AT arrivillagajazzmin caracterizacionmoleculardepoblacionesvenezolanasdesigmodonhirsutusrodentiacricetidae AT aguileramarisol caracterizacionmoleculardepoblacionesvenezolanasdesigmodonhirsutusrodentiacricetidae
_version_	1810114500846682112

Caracterización molecular de poblaciones venezolanas de Sigmodon hirsutus (Rodentia: Cricetidae)

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