African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12487

Full Length Research Paper

Population structure and expansion of kuruma shrimp (Penaeus japonicus) in the adjacent waters of Taiwan inferred from intron sequences

Ta-Jen Chu1, Hsien-Lu Haung2, Chun-Han Shih3, Feng-Jiau Lin4 and Tzong-Der Tzeng5*
1Department of Leisure and Recreation Management, Chung Hua University, 707 Sec. 2, Wu Fu Road, Hsin Chu 300, Taiwan. 2Department of Nutrition and Health Science, Fooyin University, 151, Chinhsueh Road, Ta-liao, Kaohsiung, Taiwan. 3Department of Leisure Management, Tungnan University, No.152, Sec. 3, Beishen Rd., Shenkeng Dist., New Taipei City 222, Taiwan. 4Department of Life Sciences, National Cheng Kung University, Tainan, Taiwan. 5Department of Leisure, Recreation and Tourism Management, Shu-Te University, Kaohsiung 824, Taiwan.
Email: [email protected]

  •  Accepted: 19 October 2011
  •  Published: 23 November 2011

Abstract

Sequence analyses on the specific intron from the elongation factor-1α gene were conducted to examine the population genetic structure and expansion of kuruma shrimp (Penaeus japonicus) off Taiwan. Five populations including 119 individuals were separately sampled from the north of East China Sea (ECS), west of Taiwan Strait (WTS), east of Taiwan Strait (ETS), South China Sea (SCS) and adjacent waters of Kagoshima (JAN). The gene diversity (h) was high for all populations (99.9%), with values from 99.7% (ETS) to 1. Nucleotide diversity (π) for all populations was 0.0421, with values from 0.0368 (JAN) to 0.0437 (ETS). Neighbor-joining tree and network of all alleles showed no significant genealogical structure. Analyses of molecular variance and FST also revealed no significant genetic structure among five populations, but the FST value between ECS and ETS was significant. Fu’s F statistics and analysis of mismatch distribution for overall alleles suggested that this species in the studied waters had experienced population expansion.

 

Key words: Intron of elongation factor-1α gene, Penaeus japonicus, population genetic structure, population expansion.

Abbreviation

WTS, West of Taiwan Strait; ECS, East China Sea; JAN, adjacent waters of Kagoshima; ETS, east of Taiwan Strait; SCS, South China Sea.

 

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This article is published under the terms of the Creative Commons Attribution License 4.0

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