Fisheries Science

, 76:75

Genetic variability and stock structure of red tilefish Branchiostegus japonicus inferred from mtDNA sequence analysis

  • Kenji Nohara
  • Hiroyuki Takeuchi
  • Tatsuo Tsuzaki
  • Nobuaki Suzuki
  • Osamu Tominaga
  • Tadahisa Seikai
Original Article Biology

Abstract

Sequence analysis based on the anterior part of the mitochondrial DNA control region was carried out to reveal the genetic diversity, stock structure, and historical demography of the red tilefish. Nucleotide sequences of 388 bp in length were determined for 280 individuals taken from eight localities. The molecular diversity, haplotype diversity, and nucleotide diversity were relatively high (average h = 0.929 ± 0.011; average π = 0.008 ± 0.005). The mismatch distribution was not significantly different from the expected distribution for a rapidly expanding population (P = 0.453). The minimum spanning network connecting with full-sequence haplotypes contained star-like topologies derived from multiple ancient lineages, supporting the mismatch distribution analysis. No significant genetic differentiation was observed among eight localities (maximum pairwise FST = 0.023, reduced-sequence data set). Our results suggest a large panmictic population of the red tilefish along the coast of Honshu to the East China Sea.

Keywords

Branchiostegus japonicus Control region Genetic variability Mitochondrial DNA sequence Stock structure 

Copyright information

© The Japanese Society of Fisheries Science 2009

Authors and Affiliations

  • Kenji Nohara
    • 1
    • 5
  • Hiroyuki Takeuchi
    • 2
  • Tatsuo Tsuzaki
    • 2
    • 3
  • Nobuaki Suzuki
    • 4
  • Osamu Tominaga
    • 1
  • Tadahisa Seikai
    • 1
  1. 1.Department of Marine Bioscience, Faculty of Marine BioscienceFukui Prefectural UniversityFukuiJapan
  2. 2.Miyazu Station, National Center for Stock EnhancementFisheries Research AgencyMiyazuJapan
  3. 3.Tamano Station, National Center for Stock EnhancementFisheries Research AgencyTamanoJapan
  4. 4.Ishigaki Tropical StationSeikai National Fisheries Research InstituteIshigakiJapan
  5. 5.National Research Institute of Far Seas FisheriesFisheries Research AgencyShimizuJapan

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