Genetic Diversity and Population Structure of the Asian Green Mussel (Pernaviridis) in the Waters of Sabah, MalaysiaBased on Mitochondrial DNA D-Loop Sequences

被引:8
|
作者
Lau, Jen-Shi [1 ]
Ransangan, Julian [1 ]
Rodrigues, Kenneth Francis [2 ]
机构
[1] Univ Malaysia Sabah, Borneo Marine Res Inst, Fish Dis & Microbiol Lab, Kota Kinabalu Sabah 88400, Malaysia
[2] Univ Malaysia Sabah, Biotechnol Res Inst, Kota Kinabalu Sabah 88400, Malaysia
关键词
Pernaviridis; D-loop; control region; mitochondrial DNA; genetic diversity; high haplotype diversity; low nucleotide diversity; population structure; demographic history; Sabah Malaysia; PERNA-VIRIDIS L; MYTILIDAE; COAST; POLYMORPHISMS; CONSERVATION; BIVALVIA; LINNAEUS; REGION; SEA;
D O I
10.4194/1303-2712-v18_1_12
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
The Asian green mussel (Pernaviridis) is a bivalve species with a high economic value. The waters surrounding the Malaysian state of Sabah hosts a wide range of geographically distributed populations of P. viridis whose population structure is unknown. This study was conducted to elucidate the genetic diversity and population structure of Asian green mussel from six sites located along the coastline of Sabah based on the mitochondrial DNA control region (D-loop). The complete D-loop sequences of 197 individuals were recovered by amplification using PCR, followed by DNA sequencing. Interpretation of the results revealed that the P. viridispopulations exhibited high haplotype diversity (H-d= 0.912 +/- 0.0002) and low nucleotide diversity (pi= 0.00890 +/- 0.00066). The AMOVA analysis showed. ST was 0.02322 (P value< 0.05), which is indicative of low but significant structuring. Pairwise. ST ranged from low to moderate indicating population differentiation. Five out of the fifteen population pairs showed significant population differentiation. Both AMOVA and pairwise. ST suggest there were significant population subdivisions in Asian green mussel population in Sabah. Although the Asian green mussel population in Sabah has gone through a severe mass mortality, evidence for genetic bottleneck was not detected. However, a smaller population size after a severe demographic reduction can cause the population become vulnerable. Thus, regular monitoring of Asian green mussel population is required to keep track of fluctuations in population size and composition. This study provided new population genetic information which is crucial for establishing fisheries management strategies for this species.
引用
收藏
页码:109 / 117
页数:9
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