INVESTIGADORES
LOBO GAVIOLA Fernando Jose
artículos
Título:
Phylogenetic relationships within a patagonian clade of reptiles (Liolaemidae: Phymaturus) based on DNA sequences and morphology
Autor/es:
LOBO, F., D. A. BARRASSO, M. PAZ & N. G. BASSO
Revista:
JOURNAL OF ZOOLOGICAL SYSTEMATICS AND EVOLUTIONARY RESEARCH
Editorial:
WILEY-BLACKWELL PUBLISHING, INC
Referencias:
Lugar: Londres; Año: 2018
ISSN:
0947-5745
Resumen:
Phymaturus is a clade of lizards that occurs at moderate to high elevations in western Argentina and the adjacent central region of Chile, as well as in various volcanic tablelands of the Patagonian region of Argentina. The genus had previously been divided into two groups: the patagonicus and the palluma group, in this study we analyzed the relationships within the patagonicus group. The data set was built for almost all species recognized in the literature. In total, 10,631 bp (ND4, Cytb, 12S, COI, five protein coding nuclear genes and seven anonymous nuclear loci) and 254 morph characters were analyzed in a combined data set for 35 in-group taxa and 9 outgroups. We also ran separate molecular and morphological data sets. We identified four main clades, noting congruencies and incongruences with previous studies. The indistinctus clade is recovered as the most basal within the patagonicus group in the strict parsimony analysis, but the somuncurensis clade under Bayesian inference. The previously recovered calcogaster clade resulted paraphyletic in both analyses and part of their species are included in a redefined somuncurensis clade. We discuss biogeographical implications of these results and take endemism areas proposed for southern Argentina into account.