The enigmatic Leiosaurae clade: Phylogeography, species delimitation, phylogeny and historical biogeography of its southernmost species.

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ID: 74452
2019
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Abstract
The clade Leiosaurae is composed of poorly-known species endemic to the southern region of South America. The difficulties of finding these lizards in the field, and their highly conserved morphology, have limited our taxonomic knowledge and understanding of their evolutionary histories. Here, we use data collected over 9 years to study the phylogenetic history, genetic diversity, and biogeographic history of almost all the southernmost species of Leiosaurae (except P. nigroigulus), including: Leiosaurus bellii, Diplolaemus darwinii, D. bibronii, D. sexcinctus and D. leopardinus. We use a fragment of the mitochondrial cytochrome-b gene to resolve general phylogeographic patterns, and add another mitochondrial gene and eight nuclear genes to perform species delimitation and phylogenetic analyses associated with divergence times. We found evidence for three putative new species-level taxa within L. bellii and five within Diplolaemus species, indicating high levels of geographic structure. We used a time-calibrated phylogeny to estimate ranges of ancestral distributions and to generate new hypotheses about their historical biogeography.
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femenias2019themolecular Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Femenias, Martin M;Avila, Luciano J;Sites, Jack W;Morando, Mariana;
Journal Molecular phylogenetics and evolution
Year 2019
DOI
S1055-7903(19)30350-1
URL
Keywords
conservation speciation leiosauridae matuasto patagonia plio-pleistocene

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