Presentation Title

Population Genetic Analysis of the Commercially-Important Asian Moon Scallop, Amusium Pleuronectes (Mollusca: Bivalvia: Pectinidae)

Faculty Mentor

Alvin Alejandrino

Start Date

18-11-2017 1:30 PM

End Date

18-11-2017 1:45 PM

Location

9-255

Session

Bio Sciences 1

Type of Presentation

Oral Talk

Subject Area

biological_agricultural_sciences

Abstract

Amusium pleuronectes, the Asian moon scallop, is found throughout the Indo-Pacific Ocean and is a commercially important species. A recent study on A. pleuronectes, using mitochondrial 16S ribosomal DNA gene, revealed two non-interbreeding groups, one in the Andaman Sea and another within the Gulf of Thailand. However, it is not known whether A. pleuronectes from other parts of the geographic distribution, interbreed. We hypothesize that A. pleuronectes from Malaysia will be closely related to A. pleuronectes from Thailand, and are interbreeding with A. pleuronectes from the Gulf of Thailand but not with A. pleuronectes in the Andaman Sea. In this study, we examined the genetic variation of A. pleuronectes individuals from Malaysia and other localities in the Indo-Pacific to identify whether they are interbreeding. Histone H3, 16S rDNA and 28S rDNA genes were amplified using polymerase chain reaction and sequenced for individuals from Malaysia. The same three genes were obtained from GenBank for A. pleuronectes from the geographic distribution. The phylogenetic tree, haplotype network, automatic barcode gap discovery and pairwise FST show three non-interbreeding groups: the Andaman Sea, the South China Sea (including the Gulf of Thailand), and the Gulf of Carpentaria (Australia). This leads to the conclusion that A. pleuronectes has to be managed by region due to genetic differences as overfishing of A. pleuronectes in each region can lead to extinction.

Summary of research results to be presented

The phylogenetic tree, haplotype network, automatic barcode gap discovery and pairwise FST show three non-interbreeding groups: the Andaman Sea, the South China Sea (including the Gulf of Thailand), and the Gulf of Carpentaria (Australia). This leads to the conclusion that A. pleuronectes has to be managed by region due to genetic differences as overfishing of A. pleuronectes in each region can lead to extinction.

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Nov 18th, 1:30 PM Nov 18th, 1:45 PM

Population Genetic Analysis of the Commercially-Important Asian Moon Scallop, Amusium Pleuronectes (Mollusca: Bivalvia: Pectinidae)

9-255

Amusium pleuronectes, the Asian moon scallop, is found throughout the Indo-Pacific Ocean and is a commercially important species. A recent study on A. pleuronectes, using mitochondrial 16S ribosomal DNA gene, revealed two non-interbreeding groups, one in the Andaman Sea and another within the Gulf of Thailand. However, it is not known whether A. pleuronectes from other parts of the geographic distribution, interbreed. We hypothesize that A. pleuronectes from Malaysia will be closely related to A. pleuronectes from Thailand, and are interbreeding with A. pleuronectes from the Gulf of Thailand but not with A. pleuronectes in the Andaman Sea. In this study, we examined the genetic variation of A. pleuronectes individuals from Malaysia and other localities in the Indo-Pacific to identify whether they are interbreeding. Histone H3, 16S rDNA and 28S rDNA genes were amplified using polymerase chain reaction and sequenced for individuals from Malaysia. The same three genes were obtained from GenBank for A. pleuronectes from the geographic distribution. The phylogenetic tree, haplotype network, automatic barcode gap discovery and pairwise FST show three non-interbreeding groups: the Andaman Sea, the South China Sea (including the Gulf of Thailand), and the Gulf of Carpentaria (Australia). This leads to the conclusion that A. pleuronectes has to be managed by region due to genetic differences as overfishing of A. pleuronectes in each region can lead to extinction.