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Low Genetic Variation Suggest Single Stock of Kawakawa Euthynnus affinis (Cantor, 1849) along the Indian Coast

Year 2012, Volume: 12 Issue: 3, - , 01.06.2012

Girish Kumar Swaraj Priyaranjan Kunal Maria Rosalia Menezes

Abstract

Kawakawa Euthynnus affinis is an epipelagic migratory tuna species, widely distributed in the tropical and subtropical waters of the Indo-Pacific region. It constitutes the largest tuna fishery in Indian waters. In present study, restriction fragment length polymorphism (RFLP) analysis of the mitochondrial D-loop region was employed to examine the levels of genetic diversity among kawakawa samples collected from eight main fishing zones (Veraval (VE), Ratnagiri (RA), Kochi (KO), Kavaratti (KA), Port-Blair (PB), Tuticorin (TU), Pondicherry (PO) and Vizag (VI)) along the Indian coast. A 500 bp segment of mitochondrial D-loop region was screened in 400 samples using six restriction enzymes (Rsa I, Alu I, Hinf I, Hha I, Msp I and Hae III), resulting in 13 composite morphs. Analysis of molecular variance (AMOVA) of mtDNA data revealed no significant genetic differentiation among sites (FST = - .00446, P = 0.84946). Results of the genetic analyses of present study suggest the single stock of kawakawa along the Indian coast.

Keywords

PCR-RFLP mtDNA D-loop Indian waters

Low Genetic Variation Suggest Single Stock of Kawakawa Euthynnus affinis (Cantor, 1849) along the Indian Coast

Year 2012, Volume: 12 Issue: 3, - , 01.06.2012

Girish Kumar Swaraj Priyaranjan Kunal Maria Rosalia Menezes

Abstract

Kawakawa Euthynnus affinis is an epipelagic migratory tuna species, widely distributed in the tropical and subtropical waters of the Indo-Pacific region. It constitutes the largest tuna fishery in Indian waters. In present study, restriction fragment length polymorphism (RFLP) analysis of the mitochondrial D-loop region was employed to examine the levels of genetic diversity among kawakawa samples collected from eight main fishing zones (Veraval (VE), Ratnagiri (RA), Kochi (KO), Kavaratti (KA), Port-Blair (PB), Tuticorin (TU), Pondicherry (PO) and Vizag (VI)) along the Indian coast. A 500 bp segment of mitochondrial D-loop region was screened in 400 samples using six restriction enzymes (Rsa I, Alu I, Hinf I, Hha I, Msp I and Hae III), resulting in 13 composite morphs. Analysis of molecular variance (AMOVA) of mtDNA data revealed no significant genetic differentiation among sites (FST = - .00446, P = 0.84946). Results of the genetic analyses of present study suggest the single stock of kawakawa along the Indian coast.

Keywords

PCR-RFLP mtDNA D-loop Indian waters

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Details

Primary Language Turkish
Journal Section Articles
Authors

Girish Kumar This is me

Swaraj Priyaranjan Kunal This is me

Maria Rosalia Menezes This is me

Publication Date June 1, 2012
Published in Issue Year 2012 Volume: 12 Issue: 3

Cite

APA Kumar, G., Kunal, S. P., & Menezes, M. R. (2012). Low Genetic Variation Suggest Single Stock of Kawakawa Euthynnus affinis (Cantor, 1849) along the Indian Coast. Turkish Journal of Fisheries and Aquatic Sciences, 12(3).
AMA Kumar G, Kunal SP, Menezes MR. Low Genetic Variation Suggest Single Stock of Kawakawa Euthynnus affinis (Cantor, 1849) along the Indian Coast. Turkish Journal of Fisheries and Aquatic Sciences. June 2012;12(3).
Chicago Kumar, Girish, Swaraj Priyaranjan Kunal, and Maria Rosalia Menezes. “Low Genetic Variation Suggest Single Stock of Kawakawa Euthynnus Affinis (Cantor, 1849) Along the Indian Coast”. Turkish Journal of Fisheries and Aquatic Sciences 12, no. 3 (June 2012).
EndNote Kumar G, Kunal SP, Menezes MR (June 1, 2012) Low Genetic Variation Suggest Single Stock of Kawakawa Euthynnus affinis (Cantor, 1849) along the Indian Coast. Turkish Journal of Fisheries and Aquatic Sciences 12 3
IEEE G. Kumar, S. P. Kunal, and M. R. Menezes, “Low Genetic Variation Suggest Single Stock of Kawakawa Euthynnus affinis (Cantor, 1849) along the Indian Coast”, Turkish Journal of Fisheries and Aquatic Sciences, vol. 12, no. 3, 2012.
ISNAD Kumar, Girish et al. “Low Genetic Variation Suggest Single Stock of Kawakawa Euthynnus Affinis (Cantor, 1849) Along the Indian Coast”. Turkish Journal of Fisheries and Aquatic Sciences 12/3 (June 2012).
JAMA Kumar G, Kunal SP, Menezes MR. Low Genetic Variation Suggest Single Stock of Kawakawa Euthynnus affinis (Cantor, 1849) along the Indian Coast. Turkish Journal of Fisheries and Aquatic Sciences. 2012;12.
MLA Kumar, Girish et al. “Low Genetic Variation Suggest Single Stock of Kawakawa Euthynnus Affinis (Cantor, 1849) Along the Indian Coast”. Turkish Journal of Fisheries and Aquatic Sciences, vol. 12, no. 3, 2012.
Vancouver Kumar G, Kunal SP, Menezes MR. Low Genetic Variation Suggest Single Stock of Kawakawa Euthynnus affinis (Cantor, 1849) along the Indian Coast. Turkish Journal of Fisheries and Aquatic Sciences. 2012;12(3).