Genetic diversity of Jinga shrimp Metapenaeus affinis in the Persian Gulf based on mitochondrial gene 16S rRNA sequencing

Document Type : Research Paper


Regarding the importance of Jinga shrimp in catch cycle of the Persian Gulf and its second rank in shrimp catch in Hormozgan province, genetic diversity of this species was assessed based on sequencing of mitochondrial 16S rRNA gene. Shrimp samples were collected from the regions of Bandar Abbas, Bushehr and Abadan, and PCR reaction for amplification of 16S rRNA was optimized. The results of 16S rRNA gene sequencing including 486 aligned base pairs yielded 480 monomorphic loci, 6 polymorphic loci and 2 transitions. Mean haplotype diversity in each region was recorded from 0.000±0.000 (Bandar Abbas) to 0.333±0.215 (Bushehr) and 0.333±0.215 (Abadan), and mean nucleotide diversity from 0.000±0.000 (Bandar Abbas) to 0.003±0.003 (Bushehr) and 0.001±0.001 (Abadan). Haplotype and nucleotide diversity of all samples were 0.608±0.007 and 0.002±0.003, respectively. Results of this study revealed the intermediate haplotype diversity and low nucleotide diversity of Jinga shrimp in the studied regions. As one of the reasons for severe decrease of populations is the lack of genetic diversity, the analysis of these results and its application can be useful for fisheries management in appropriate restocking of this valuable species.