汽水性希少カニ類タイワンヒライソモドキ <i>Ptychognathus ishii</i> Sakai, 1939(モクズガニ科)の日本沿岸における遺伝的集団構造

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  • Genetic population structure of the rare brackish-water crab <i>Ptychognathus ishii</i> Sakai, 1939 (Varunidae) on the Japanese coast
  • 汽水性希少カニ類タイワンヒライソモドキPtychognathus ishii Sakai, 1939(モクズガニ科)の日本沿岸における遺伝的集団構造
  • キスイセイ キショウ カニルイ タイワンヒライソモドキ Ptychognathus ishii Sakai, 1939(モクズガニカ)ノ ニホン エンガン ニ オケル イデンテキ シュウダン コウゾウ

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<p>Genetic population structure of the rare brackish-water crab Ptychognathus ishii Sakai, 1939 (Varunidae), was investigated based on specimens from ten localities in southwestern Japan from Shizuoka Prefecture to Okinawa Prefecture. Significant genetic differentiation was detected among many local populations, with the most remarkable difference between populations on the Japanese mainland and those on smaller islands, such as Tsushima Island, Kakeroma Island, and Okinawa Island. Additionally, genetic differentiation was found between some local populations on the mainland. Results of a neutrality test, divergence time estimation, and mismatch distribution results suggest that mainland populations diverged from the population in Okinawa after divergence of the Kakeroma and Tsushima populations.</p>

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