Genetic structure of Octopus minor around Chinese waters as indicated by nuclear DNA variations (Mollusca, Cephalopoda)

Faiz Muhammad; Zhen-Ming Lü; Liqin Liu; Li Gong; Xun Du; Muhammad Shafi; Hubdar Ali Kaleri

doi:10.3897/zookeys.775.24258

Genetic structure of Octopus minor around Chinese waters as indicated by nuclear DNA variations (Mollusca, Cephalopoda)

Zookeys. 2018 Jul 17:(775):1-14. doi: 10.3897/zookeys.775.24258. eCollection 2018.

Authors

Faiz Muhammad^{1

2}, Zhen-Ming Lü¹, Liqin Liu¹, Li Gong¹, Xun Du¹, Muhammad Shafi³, Hubdar Ali Kaleri⁴

Affiliations

¹ National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Sciences and Technology, Zhejiang Ocean University.
² Center of Excellence in Marine Biology, University of Karachi.
³ Lasbella University of Agriculture, Water and Marine Sciences.
⁴ Department of Animal Science and Aquaculture, Dalhousie University, Canada.

Abstract

Octopus minor is an economically important resource commonly found in Chinese coastal waters. The nuclear gene (RD and ODH) approach of investigation has not reported in this species. Rhodopsin (RD) and octopine dehydrogenase (ODH) genes were used to elaborate the genetic structure collected from eight localities ranging from the northern to the southern coast of China. In total, 118 individuals for the RD gene and 108 for the ODH were sequenced. Overall (RD and ODH) genes resulted in high (0.741±0.032; 0.805±0.038) haplotype and low nucleotide (0.01261±0.00165; 0.00747±0.00086) diversity. Molecular variance displayed higher values among the populations and lower values within the population where the fixation index F_ST denoted 0.880 and 0.584 in RD and ODH genes respectively. The Dongshan population clustered separately in a phylogenetic tree as in the haplotype networking assessment. The current data suggests that the Dongshan population needs separate management.

Keywords: Cephalopoda; China Coast; Nuclear DNA; Octopuses.