Genetic structure of the asari clam <I>Ruditapes philippinarum</I> in Ise Bay inferred by microsatellite DNA marker

DOI JASI Web Site
  • Sano Natsumi
    Graduate School of Bioresources, Mie University
  • Hasegawa Natsuki
    National Research Institute of Aquaculture, Japan Fisheries Research and Education Agency
  • Hanyu Kazuhiro
    Suzuka Branch, Mie Prefecture Fisheries Research Institute
  • Miyawaki Dai
    Aichi Fisheries Research Institute
  • Komaru Akira
    Graduate School of Bioresources, Mie University
  • Kuwahara Hisami
    National Research Institute of Fisheries Engineering, Japan Fisheries Research and Education Agency

Bibliographic Information

Other Title
  • マイクロサテライト DNA マーカーから見た伊勢湾内のアサリの遺伝的集団構造
  • マイクロサテライト DNA マーカー カラ ミタ イセワン ナイ ノ アサリ ノ イデンテキ シュウダン コウゾウ

Search this article

Description

For improved resource management, we estimated the genetic structure of the asari clam Ruditapes philippinarum to reveal the local population network formed by transportation of pelagic larvae in Ise Bay, Japan. We sampled juvenile clams (shell length < 20 mm) at six locations in Ise Bay and one location in the adjacent Mikawa Bay in May and November in 2013 and 2014. We analyzed 24 or 25 individuals from each sampling location at each sampling period and performed microsatellite analysis with 4 loci (Asari16, Asari62, Asari64 and KTp8). Analysis of molecular variance (AMOVA) revealed significant genetic differentiation between the sampling periods (FCT = 0.00590, P = 0.00000) but no genetic differentiation between the sampling locations (FCT = -0.00142, P = 0.83773). This indicates that the genetic characteristics of settlements are nearly homogeneous for different sampling periods but not so for different locations. It is thus possible that pelagic larvae originate from multiple sites in the bays and are intermingled, which suggests a metapopulation may have formed by transportation of pelagic larvae in Ise Bay.

Journal

  • Aquaculture Science

    Aquaculture Science 66 (3), 209-216, 2018

    Japanese Society for Aquaculture Science

Keywords

Details 詳細情報について

Report a problem

Back to top