Systematics of hairy armadillos and the taxonomic status of the Andean hairy armadillo (<i>Chaetophractus nationi</i>)

Hairy armadillos constitute an ecologically homogeneous and morphologically similar group with currently 5 species classified in the subfamily Euphractinae. Among them, the Andean hairy armadillo <i>Chaetophractus nationi</i> (Xenarthra, Cingulata, Dasypodidae) is a small, endangered arm...

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Autores principales: Abba, Agustín Manuel, Cassini, Guillermo Hernán, Valverde, Guido, Tilak, Marie Ka, Vizcaíno, Sergio Fabián, Superina, Mariella, Delsuc, Frédéric
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Ciencias Naturales
Chaetophractus
conservation
Euphractinae
hairy armadillos
molecular phylogenetics
morphometrics
systematics
taxonomy
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85964
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85964
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Chaetophractus
conservation
Euphractinae
hairy armadillos
molecular phylogenetics
morphometrics
systematics
taxonomy
spellingShingle Ciencias Naturales
Chaetophractus
conservation
Euphractinae
hairy armadillos
molecular phylogenetics
morphometrics
systematics
taxonomy
Abba, Agustín Manuel
Cassini, Guillermo Hernán
Valverde, Guido
Tilak, Marie Ka
Vizcaíno, Sergio Fabián
Superina, Mariella
Delsuc, Frédéric
Systematics of hairy armadillos and the taxonomic status of the Andean hairy armadillo (<i>Chaetophractus nationi</i>)
topic_facet Ciencias Naturales
Chaetophractus
conservation
Euphractinae
hairy armadillos
molecular phylogenetics
morphometrics
systematics
taxonomy
description Hairy armadillos constitute an ecologically homogeneous and morphologically similar group with currently 5 species classified in the subfamily Euphractinae. Among them, the Andean hairy armadillo <i>Chaetophractus nationi</i> (Xenarthra, Cingulata, Dasypodidae) is a small, endangered armadillo that has long been suspected to represent a high-altitude variant of <i>Chaetophractus vellerosus</i>. Here, we report the 1st phylogenetic systematics assessment of hairy armadillos using morphological and molecular analyses of all described species with focus on the status of the Andean hairy armadillo. Multivariate analyses of shape variation based on 3-dimensional landmark coordinates of skulls allowed a clear differentiation of each species with the exception of <i>C. vellerosus</i> and <i>C. nationi</i>, within which only a latitudinal and/or altitudinal gradient in size was apparent. Moreover, analyses of mitochondrial DNA control region (D-loop) revealed a single <i>C. nationi</i> haplotype that appeared to be identical with a <i>C. vellerosus</i> haplotype from Argentina. Identical sequences in <i>C. vellerosus</i> and <i>C. nationi</i> were also observed for 3 of the 5 non-coding nuclear markers investigated. Based on these data, we propose that <i>C. nationi</i> should be considered as a synonym of <i>C. vellerosus</i>. However, this taxonomic change should not preclude the protection of the high-altitude Bolivian populations that are steadily declining because of their overexploitation for traditional purposes. Finally, phylogenetic analyses of euphractine armadillos based on a combination of 6 non-coding nuclear markers and 2 nuclear exons suggest the paraphyly of the genus <i>Chaetophractus</i>, with <i>C. vellerosus</i> being more closely related to <i>Zaedyus pichiy</i> than to <i>C. villosus</i>.
format Articulo
Articulo
author Abba, Agustín Manuel
Cassini, Guillermo Hernán
Valverde, Guido
Tilak, Marie Ka
Vizcaíno, Sergio Fabián
Superina, Mariella
Delsuc, Frédéric
author_facet Abba, Agustín Manuel
Cassini, Guillermo Hernán
Valverde, Guido
Tilak, Marie Ka
Vizcaíno, Sergio Fabián
Superina, Mariella
Delsuc, Frédéric
author_sort Abba, Agustín Manuel
title Systematics of hairy armadillos and the taxonomic status of the Andean hairy armadillo (<i>Chaetophractus nationi</i>)
title_short Systematics of hairy armadillos and the taxonomic status of the Andean hairy armadillo (<i>Chaetophractus nationi</i>)
title_full Systematics of hairy armadillos and the taxonomic status of the Andean hairy armadillo (<i>Chaetophractus nationi</i>)
title_fullStr Systematics of hairy armadillos and the taxonomic status of the Andean hairy armadillo (<i>Chaetophractus nationi</i>)
title_full_unstemmed Systematics of hairy armadillos and the taxonomic status of the Andean hairy armadillo (<i>Chaetophractus nationi</i>)
title_sort systematics of hairy armadillos and the taxonomic status of the andean hairy armadillo (<i>chaetophractus nationi</i>)
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/85964
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