New data on the anuran patagonian species of Atelognathus jeinimenensis and Atelognathus salai

DIAZ-PAEZ, H.; VIDAL, M. A.; ORTIZ, J. C.; UBEDA, C. A .; BASSO, N. G.

Concepción, Chile

Congreso; III Reunión Anual de la Sociedad Chilena de Evolución. Concepción, Chile; 2009

Sociedad Chilena de Evolución

The genus Atelognathus is currently represented by nine species distributed in the Argentinian and Chilean Patagonia. The genus is mostly distributed in Argentina, and only three species are present in Chile (A. ceii, A. grandisonae and A. jeinimenensis). On the morphological relationships among Atelognathus species, authors suggest that A. jeinimenensis is more related with A. salai than other species. A. salai was described from Laguna Los Gendarmes (Argentina), 90 km airline from the type locality of A. jeinimenensis. Here, we expose a phylogeographic study using mtDNA nucleotide data from Argentinean and Chilean localities to assess the genetic distance between A. salai and A. jenimenensis. We obtained 477 bp-long d-loop sequences from 51 Atelognathus specimens collected in four localities. According to our results, a simple geographic pattern of genetic diversity suggests a single species of Atelognathus, also, the populations from Chile (Cerro Castillo, RN Lago Jeinimeni and Chile Chico) exhibit low levels of genetic divergence that could agree with glaciations during the Late Pleistocene Atelognathus is currently represented by nine species distributed in the Argentinian and Chilean Patagonia. The genus is mostly distributed in Argentina, and only three species are present in Chile (A. ceii, A. grandisonae and A. jeinimenensis). On the morphological relationships among Atelognathus species, authors suggest that A. jeinimenensis is more related with A. salai than other species. A. salai was described from Laguna Los Gendarmes (Argentina), 90 km airline from the type locality of A. jeinimenensis. Here, we expose a phylogeographic study using mtDNA nucleotide data from Argentinean and Chilean localities to assess the genetic distance between A. salai and A. jenimenensis. We obtained 477 bp-long d-loop sequences from 51 Atelognathus specimens collected in four localities. According to our results, a simple geographic pattern of genetic diversity suggests a single species of Atelognathus, also, the populations from Chile (Cerro Castillo, RN Lago Jeinimeni and Chile Chico) exhibit low levels of genetic divergence that could agree with glaciations during the Late Pleistocene