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ID 51999
file
title alternative
日本産ウグイの遺伝的関係
creator
SAIKA, Daisuke
subject
Genetic relationship
Cytb
Tribolodon hakonensis
Japan
遺伝的関係
チトクロムb
ウグイ
日本
abstract
北海道から九州に至る43水系で採集された54個体のウグイについて,ミトコンドリア・チトクロムb領域の一部(709bp)の塩基配列を調べた結果,計35のハプロタイプがみられた。平均遺伝子距離は東海-北陸-近幾地方で最も高く,中国および九州地方で最も低く,ハプロタイプ多様度は北海道で最も高く,中国地方で最も低かった。四国地方ではすべてのハプロタイプが本地方のみで見られたものであった。ネットワーク解析では,北海道-東北-関東甲信越-東海北陸近幾・東北-関東甲信越・東海北陸近幾-中国-四国-九州の3群に分かれた。ハプロタイプ系統樹では若狭湾-伊勢湾を結ぶ線を境に大きく東西のグループに分かれたが,糸魚川-静岡構造線を跨ぐハプロタイプが見られた。さらに北上川・熊野川・仁淀川水系などの大河川の上流域に深く分岐した系統が見られることが明らかになった。
abstract
This study examined fifty-four samples of Tribolodon hakonensis, collected from 43 river basins in Japan, for genetic relationships based on DNA sequences of a part (709bp) in the mitochondrial cytochrome b region. A total of 35 haplotypes were identified. The average genetic distance was found to be highest in the Tokai-Hokuriku-Kinki region and lowest in the Chugoku and Kyushu regions. Haplotype diversity was highest in the Hokkaido region and lowest in the Chugoku region. In the Shikoku region, all haplotypes were recorded only in this region. Three groups were recognized in the network: Hokkaido, Tohoku, Kanto-Koshinetsu, and Tokai-Hokuriku-Kinki; Tohoku and Kanto-Koshinetsu; and Tokai-Hokuriku-Kinki, Chugoku, Shikoku, and Kyushu. In addition, two large clades were revealed in the genetic tree with a border line connecting the Wakasa Bay in the Sea of Japan side and the Ise Bay on the Pacific Ocean side, although some haplotypes were distributed across the Itoigawa-Shizuoka tectonic line. Furthermore, deeply differentiated lineages were observed in the upper reaches of large river basins, such as the Kitakami, Kumano, and Niyodo River basins.
journal title
Bulletin of the Hiroshima University Museum
issue
Issue 13
start page
1
end page
8
date of issued
2021-12-25
publisher
広島大学総合博物館
issn
1884-4243
ncid
language
eng
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2021 広島大学総合博物館 Hiroshima University Museum
department
Hiroshima University Museum
Graduate School of Integrated Sciences for Life
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