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The Complete Mitochondrial Genomes of Crocodylus Palustris and Crocodylus Mindorensis and Phylogeny of Crocodilians

Author: FengGe
Tutor: WuXiaoBing
School: Anhui Normal University
Course: Zoology
Keywords: Crocodile head Mitochondrial genome Phylogeny
CLC: Q951
Type: Master's thesis
Year: 2010
Downloads: 19
Quote: 0
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Abstract


This article uses a PCR amplification method mugger (Crocodylus palustris) and the Philippine crocodile (Crocodylus mindorensis) mitochondrial genome sequence , the sequence of full-length , respectively, 17 , 052 bp and 16 bp in 939 with the other crocodilians mitochondrial genome gene composition and consistent arrangement , compared to the typical vertebrate mitochondrial , only two tRNA gene rearrangement that tRNA Phe transferred to the tRNA Pro of the 3 ' end the tRNA Ser (AGY ) and tRNA the His gene location interchangeable. Based on 12 in the heavy chain protein-coding gene sequences using the maximum likelihood method and the Bayesian method of constructing phylogenetic trees of 14 kinds mitochondrial genome sequence of the system has been measured crocodilians relationship . The findings support existing the crocodile mesh poly for two , that the lizard Branch , and crocodile Branch , traditional fish-eating crocodile Branch into the fish-eating crocodile crocodile Branch, as a genus of crocodile Branch , the case with the fake fish-eating crocodile constitute sister group relationship narrow alligator in Africa and the African dwarf crocodile kinship , independent of the main branch of the genus crocodile crocodile Branch intergeneric phylogenetic relationship can be expressed as ( ( fish-eating crocodile is a fake fish-eating crocodile genus ) ( crocodile the genera ( long alligator crocodile case is a bone throat ))) . The dwarf caiman genus caiman case constitute a sister group , under the lizard Division . In addition, the interspecific relationship crocodile genus also discussed .

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