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Abstract

This paper reports the complete mitochondrial genome sequence of an endangered Indian snake, Python molurus molurus (Indian Rock Python). A typical snake mitochondrial (mt) genome of 17258 bp length comprising of 37 genes including the 13 protein coding genes, 22 tRNA genes, and 2 ribosomal RNA genes along with duplicate control regions is described herein. The P. molurus molurus mt. genome is relatively similar to other snake mt. genomes with respect to gene arrangement, composition, tRNA structures and skews of AT/GC bases. The nucleotide composition of the genome shows that there are more A-C % than T-G% on the positive strand as revealed by positive AT and CG skews. Comparison of individual protein coding genes, with other snake genomes suggests that ATP8 and NADH3 genes have high divergence rates. Codon usage analysis reveals a preference of NNC codons over NNG codons in the mt. genome of P. molurus. Also, the synonymous and non-synonymous substitution rates (ka/ks) suggest that most of the protein coding genes are under purifying selection pressure. The phylogenetic analyses involving the concatenated 13 protein coding genes of P. molurus molurus conformed to the previously established snake phylogeny.[PUBLICATION ABSTRACT]

Details

Title
Complete mitochondrial genome sequence from an endangered Indian snake, Python molurus molurus (Serpentes, Pythonidae)
Publication title
Volume
39
Issue
7
Pages
7403-12
Publication year
2012
Publication date
Jul 2012
Publisher
Springer Nature B.V.
Place of publication
Dordrecht
Country of publication
Netherlands
ISSN
03014851
e-ISSN
15734978
Source type
Scholarly Journal
Language of publication
English
Document type
Feature, Journal Article
Document feature
References
Accession number
22331485
ProQuest document ID
1015277168
Document URL
https://www.proquest.com/scholarly-journals/complete-mitochondrial-genome-sequence-endangered/docview/1015277168/se-2?accountid=208611
Copyright
Springer Science+Business Media B.V. 2012
Last updated
2023-11-30
Database
ProQuest One Academic