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5 results for “Pythonidae”
FIGURE 1 in Fossil calibration dates for molecular phylogenetic analysis of snakes 1: Serpentes, Alethinophidia, Boidae, Pythonidae
FIGURE 1. Time-calibrated phylogeny of Serpentes based on Pyron et al. (2013) and Reynolds et al. (2014). Numbers represent calibrated nodes in text. Fossil taxa are the calibration points for their respective nodes. Thickened bars represent well-sampled, taxonomically resolved stratigraphic distributions for the sister taxa to Pan-Serpentes and snake lineages whose first occurrences are determined by older sister taxa. Thin bars represent estimated stratigraphic distributions for taxa with poorly resolved fossil records, or no published fossil record (names in grey). "Scolecophidia" represents a paraphyletic grade with respect to Alethinophidia (see text).
Supplementary material 1 from: Auliya M, Hofmann S, Segniagbeto GH, Assou D, Ronfot D, Astrin JJ, Forat S, Koffivi K. Ketoh G, D'Cruze N (2020) The first genetic assessment of wild and farmed ball pythons (Reptilia, Serpentes, Pythonidae) in southern Togo. Nature Conservation 38: 37-59. https://doi.org/10.3897/natureconservation.38.49478
: Data type: molecular data
Phylogenomics, biogeography and taxonomic revision of New Guinean pythons (Pythonidae, Leiopython) harvested for international trade
<p>The large and enigmatic New Guinean pythons in the genus <i>Leiopython</i> are harvested from the wild to supply the international trade in pets. Six species are currently recognized (<i>albertisii</i>, <i>biakensis</i>, <i>fredparkeri</i>, <i>huonensis</i>, <i>meridionalis</i>, <i>montanus</i>) but the taxonomy of this group has been controversial. We combined analysis of 421 nuclear loci and complete mitochondrial genomes with morphological data to construct a detailed phylogeny of this group, understand their biogeographic patterns and establish the systematic diversity of this genus. Our molecular genetic data support two major clades, corresponding to <i>L. albertisii</i> and <i>L. meridionalis</i>, but offer no support for the other four species. Our morphological data also only support two species. We therefore recognize <i>L. albertisii</i> and <i>L. meridionalis</i> as valid species and place <i>L. biakensis, L. fredparkeri, L. huonensis </i>and<i> L. montanus </i>into synonymy. We found that <i>L. albertisii</i>and <i>L. meridionalis</i> are sympatric in western New Guinea; an atypical pattern compared to other Papuan species complexes in which the distributions of sister taxa are partitioned to the north and south of the island's central mountain range. For the purpose of conservation management, overestimation of species diversity within <i>Leiopython</i> has resulted in the unnecessary allocation of resources that could have been expended elsewhere. We strongly caution against revising the taxonomy of geographically widespread species groups when little or no molecular genetic data and only small morphological samples are available.</p>
Phylogeography, historical demography and systematics of the world’s smallest pythons (Pythonidae, Antaresia)
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Phylogenomics, biogeography and taxonomic revision of New Guinean pythons (Pythonidae, Leiopython) harvested for international trade
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