Article ID Journal Published Year Pages File Type
10877931 Marine Genomics 2015 8 Pages PDF
Abstract
The complete mitochondrial genome is of great importance for better understanding of the genome-level characteristics and phylogenetic relationships among related species. In this study, Fenneropenaeus penicillatus mitochondrial genome sequence was determined by next-generation sequencing. The complete genome DNA was 16,040 bp in length and consisted of a typical set of 13 protein-coding genes, 22 transfer RNA (tRNA) genes, two ribosomal RNA (rRNA) genes and a putative control region (CR). The gene arrangement is identical to the pancrustacean pattern. The overall base composition of its mitochondrial genome is estimated to be 34.1% for A, 34.1% for T, 12.5% for G and 19.3% for C with a high A + T content (68.2%). The analysis of the average Ka/Ks in the 13 mitochondrial protein-coding genes of penaeid shrimps indicated a strong purifying selection within this group. The phylogenetic analysis based on mitochondrial sequences and 13 concatenated protein-coding genes showed strong statistic support for the following relationship among the five genera ((Penaeus s.s + Fenneropenaeus) + (Litopenaeus + Farfantepenaeus)) + Marsupenaeus. The sequence data of F. penicillatus can provide useful information for the studies on molecular systematics, population structure, stock evaluation and conservation genetics.
Related Topics
Physical Sciences and Engineering Earth and Planetary Sciences Earth and Planetary Sciences (General)
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