Complete mitochondrial genome of the Xiangjiang barbel chub Squaliobarbus curriculus: comparative analysis of the genetic variation associated with geographical population

Autor:	Tiaoyi Xiao, Yi-bin Yao, Baohong Xu, Jian-Ming Su, Yu-Jie Liu, Qiaolin Liu
Rok vydání:	2013
Předmět:	Genetics Mitochondrial DNA Barbel Base Composition biology Geography Fishes Squaliobarbus curriculus Genetic Variation Proteins Ribosomal RNA biology.organism_classification Genome DNA Mitochondrial RNA Transfer RNA Ribosomal Genetic variation Transfer RNA Genome Mitochondrial Animals Molecular Biology Gene
Zdroj:	Mitochondrial DNA. 24(6)
ISSN:	1940-1744
Popis:	The barbel chub (Squaliobarbus curriculus), a kind of small commercial fish, is widespread in China. In this study, we sequenced the mitochondrial genome of the barbel chub from the Xiangjiang River. The total length of the mitochondrial genome is 16,619 bp, with the base composition of 31.19% A, 25.01% T, 27.68% C, and 16.12% G. The organization and arrangement of these genes are the same as that found in the teleosts, including 2 ribosomal RNA genes, 13 protein-coding genes, 22 transfer RNA genes, and a major noncoding control region (D-loop region). Compared with the S. curriculus collected from Jiangsu province, there were 29 mutation sites in the mitogenome sequence of Xiangjiang S. curriculus. All the mutation sites were transitions and mainly occurred in protein-coding genes (21/29), two mutation sites occurred in transfer RNA, two occurred in ribosomal RNA, and four occurred in D-loop region. Among the 21 mutation sites in protein-coding genes, 6 mutation sites resulted in amino acid mutation in ND2, ATPase6, COX3, ND4, and Cytb genes, while the others were synonymous substitutions. These results indicated that there was genetic variation in different geographical populations of S. curriculus.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e11fb3f7ed2ec058a09ce3ea8166b8f4 https://pubmed.ncbi.nlm.nih.gov/23452330 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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