Snake phylogeny: evidence from nuclear and mitochondrial genes. Slowinski, J. B and Lawson, R. Molecular Phylogenetics and Evolution, 24(2):194--202, August, 2002.
Snake phylogeny: evidence from nuclear and mitochondrial genes [link]Paper  doi  abstract   bibtex   
We constructed phylogenies of snakes from the c-mos and cytochrome b genes using conventional phylogenetic methods as well as the relatively new method of Bayesian inference. For all methods, there was excellent congruence between the c-mos and cytochrome b genes, implying a high level of support for the shared clades. Our results agree with previous studies in two important respects: first, that the scolecophidians and alethinophidians are monophyletic sister clades; and second, that the Colubroidea is a monophyletic group with the Acrochordidae as its sister clade. However, our results differ from previous studies in the finding that Loxocemus and Xenopeltis cluster with pythons. An additional noteworthy result from our data is that the genera Exiliboa and Ungaliophis, often placed with Tropidophis (and Trachyboa, not included in the present study) in the Tropidophiidae, are in reality boids.
@article{slowinski_snake_2002,
	title = {Snake phylogeny: evidence from nuclear and mitochondrial genes},
	volume = {24},
	issn = {1055-7903},
	shorttitle = {Snake phylogeny},
	url = {http://www.sciencedirect.com/science/article/pii/S1055790302002397},
	doi = {10.1016/S1055-7903(02)00239-7},
	abstract = {We constructed phylogenies of snakes from the c-mos and cytochrome b genes using conventional phylogenetic methods as well as the relatively new method of Bayesian inference. For all methods, there was excellent congruence between the c-mos and cytochrome b genes, implying a high level of support for the shared clades. Our results agree with previous studies in two important respects: first, that the scolecophidians and alethinophidians are monophyletic sister clades; and second, that the Colubroidea is a monophyletic group with the Acrochordidae as its sister clade. However, our results differ from previous studies in the finding that Loxocemus and Xenopeltis cluster with pythons. An additional noteworthy result from our data is that the genera Exiliboa and Ungaliophis, often placed with Tropidophis (and Trachyboa, not included in the present study) in the Tropidophiidae, are in reality boids.},
	number = {2},
	urldate = {2016-11-03TZ},
	journal = {Molecular Phylogenetics and Evolution},
	author = {Slowinski, Joseph B and Lawson, Robin},
	month = aug,
	year = {2002},
	pages = {194--202}
}
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