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Complete mitochondrial genome and the phylogenetic position of the smalleye pygmy shark Squaliolus aliae (Squaliformes: Dalatiidae).

ABSTRACT: The complete mitogenome of the smalleye pygmy shark Squaliolus aliae (Squaliformes: Dalatiidae) is presented in this study firstly. It is 16,717?bp with a nucleotide base composition of 30.7% A, 26.2% C, 14.7% G and 28.5% T, containing 37 genes and a control region with typical order as vertebrate. There are 23bp short intergenic spaces and 28bp overlaps locating in gene junctions. 2 rRNA genes are located in heavy strand. Twenty-two tRNA genes range from 67bp (tRNA-Cys) to 75?bp (tRNA-Leu1). Two initial codons (ATG and GTG) and two terminal codons (TAA and T) are found in protein-coding genes. The phylogenetic result shows that S. aliae in this study is clustered to the (Somniosus pacificus?+?Squalidae).

SUBMITTER: Chen H

PROVIDER: S-EPMC7799894 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature

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Complete mitochondrial genome and the phylogenetic position of the smalleye pygmy shark Squaliolus aliae (Squaliformes: Dalatiidae).

Chen Hao H Ding Wenyong W Chen Xiao X Ai Weiming W

Mitochondrial DNA. Part B, Resources 20160412 1

The complete mitogenome of the smalleye pygmy shark Squaliolus aliae (Squaliformes: Dalatiidae) is presented in this study firstly. It is 16,717 bp with a nucleotide base composition of 30.7% A, 26.2% C, 14.7% G and 28.5% T, containing 37 genes and a control region with typical order as vertebrate. There are 23bp short intergenic spaces and 28bp overlaps locating in gene junctions. 2 rRNA genes are located in heavy strand. Twenty-two tRNA genes range from 67bp (tRNA-Cys) to 75 bp ( ...[more]

PMID: 33473474

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