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Genetic Diversity Comparison of Pampus minor between Chinese and Malaysian Populations Inferred from mtDNA Cytb

Genetic Diversity Comparison of Pampus minor between Chinese and Malaysian Populations Inferred from mtDNA Cytb

Yuan Li1, Liyan Zhang2, Karhoe Loh3, Ji Feng1, Xinqing Zheng1, Puqing Song1 and Longshan Lin1,*

1Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China
2Fujian Institute of Oceanography, Xiamen 361012, China
3Institute of Ocean and Earth Sciences, University of Malaya, Kuala Lumpur 50603, Malaysia

Yuan Li and Liyan Zhang have contributed equally to this paper.

*      Corresponding author:



Pampus minor is often mistakenly identified as the larva of Pampus argenteus or Pampus cinereus because of its small size. Despite its importance, studies on the population genetics of P. minor are not yet available. In the present study, the mitochondrial Cytb gene was employed to investigate the population genetics of P. minor collected along the coasts of China and Malaysia. The genetic diversity of all P. minor populations was moderate, and two major haplotype lineages were detected that were differentiated approximately 0.3 million years ago. These two haplotype lineages differed significantly in frequency distribution of Chinese and Malaysian populations, showing an imperfect geographical pedigree structure. Results of AMOVA also showed that the genetic differentiation was mainly among populations. According to the distribution of the haplotypes, an ancestral haplotype existed in both the Chinese population and the Malaysian population, further confirming that the Chinese and Malaysian P. minor populations originated from the same refuge in the South China Sea. A historical demographic analysis indicated that P. minor experienced a recent population expansion during the late Pleistocene period. Due to the need of P. minor to adapt to the diverse habitats, unique haplotypes were ultimately formed under the differing pressures of natural selection. This study is expected to provide a basis for future research of the population genetics of P. minor.

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Pakistan Journal of Zoology


Vol. 52, Iss. 4, Pages 1225-1630


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