Artículo
Quantitative morphological characters of the skull suggest that Akodon oenos (Rodentia, Cricetidae, Sigmodontinae) is not a junior synonym of A. spegazzinii
Jayat, Jorge Pablo
; Ortiz, Pablo Edmundo
; Ojeda, Agustina Alejandra
; Novillo, Agustina
; Teta, Pablo Vicente
; D'elía, Guillermo; Ojeda, Ricardo Alberto
Fecha de publicación:
05/2020
Editorial:
De Gruyter
Revista:
Mammalia
ISSN:
0025-1461
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Akodon oenos, a nominal form with type locality in northern Mendoza province, Argentina, has an intricate taxonomic history. Recently, it was considered a junior synonym of Akodon spegazzinii on the basis of morphological similarities of one individual captured in southern Mendoza with specimens belonging to the type series of A. oenos, plus the genetic similarity of that single specimen with representatives of A. spegazzinii. We compared specimens of the Akodon boliviensis species group recently captured in Mendoza with the type series of A. oenos and series of A. spegazzinii from northwestern Argentina. We conducted an analysis of molecular markers (cytochrome-b gene) and quantitative morphological studies (comparisons of skull measurements). Our results showed that: (1) all sequenced specimens of the A. boliviensis group from Mendoza form a monophyletic clade closely related to A. spegazzinii; (2) contrary to previous hypothesis, specimens of Akodon from Mendoza are morphologically distinctive in size and shape of the skull, from A. spegazzinii; and (3) within the A. boliviensis species group, specimens from Mendoza are distinctive. We argue that the synonymy of A. oenos under A. spegazzinii must await further studies, including molecular markers other than mitochondrial and samples of DNA sequences from topotypical specimens of A. oenos.
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Licencia
Identificadores
Colecciones
Articulos(UEL)
Articulos de UNIDAD EJECUTORA LILLO
Articulos de UNIDAD EJECUTORA LILLO
Citación
Jayat, Jorge Pablo; Ortiz, Pablo Edmundo; Ojeda, Agustina Alejandra; Novillo, Agustina; Teta, Pablo Vicente; et al.; Quantitative morphological characters of the skull suggest that Akodon oenos (Rodentia, Cricetidae, Sigmodontinae) is not a junior synonym of A. spegazzinii; De Gruyter; Mammalia; 84; 3; 5-2020; 299-313
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