A cytogenetic, molecular genetic and morphological study of Patagonian chinchilla mice Euneomys (Rodentia, Cricetidae) in the Southern Central Andes
- Ojeda, Agustina Alejandra
- Novillo, Agustina
- Ovejero Aguilar, Ramiro Jose Antonio
- Cuello, Pablo Andrés
- Lanzone, Cecilia
- Borisenko, Alex V.
- Braun, Janet K.
- Mares, Michael A.
- Ojeda, Agustina Alejandra
DOIAbstract
Euneomys is a genus of sigmodontine rodent endemic to South America, distributed along the Andes of Argentina and Chile and in adjoining Patagonian steppe. Here, we studied specimens of Euneomys from different localities in the Central Andes, Mendoza Province, Argentina. Karyotypic analyses confirm the presence of a new karyomorph of Euneomys chinchilloides, the form 2n = 34, FN = 62–64. This new karyomorph differs from the form E. chinchilloides with 2n = 36, FN = 64–66. The chromosome complement with 2n = 36 has an extra pair of small acro-telocentric chromosomes that is not present in individuals with 2n = 34. We also found small differences in molecular analyses with the mitochondrial COI gene. We recovered two monophyletic clades, one ...
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