INVESTIGADORES
MORANDO Mariana
congresos y reuniones científicas
Título:
Phylogeographic study of the kriegi complex (Iguania: Liolaemini) based on mitochondrial cytochrome B gene sequences
Autor/es:
MEDINA, C.; AVILA, L.J.; SITES, J. W. JR.; MORANDO, M.
Lugar:
Curitiba
Reunión:
Congreso; IX Congreso Latinoamericano de Herpetología; 2011
Institución organizadora:
Sociedad Brasilera de Herpetologia-Instituto Neotropical-Museo de Historia Natural
Resumen:
Liolaemus is the lizard genus most southerly distributed in South America, with more than 220 described species grouped into two major clades, Liolaemus sensu stricto or Chilean group and Eulaemus or Argentinean group. The genus is distributed over a wide geographical area occupyinglatitudes from 14° S to 52º S and altitudes from 0 m to almost 5000 meters. Within the Liolaemus group, several clades and species complexes have been proposed, including the kriegi complex proposed in 1986 by Cei. This complex includes species distributed in Argentina and Chilean Patagonia. Species distributed in Argentina are: L. kriegi, L. ceii and L. buergeri. The aim of this study is to present an extended and intensive phylogeographic study of this complex, including described as well as candidate species. The sampling sites are throughout its range encompassing an area from south of Mendoza province to south of the Río Negro province, covering the entire distribution range of these species with intensive population sampling. We used 180 individuals from 59 localities, for which were sequenced a fragment of ~800 bp of the mitochondrialcytochrome b gene. We performed standard genetic diversity and demographic analysis, and recovered many well-supported clades in gene trees. We discuss these results withingeographical, demographic and evolutionary contexts.