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ID 32062
file
creator
Ina, Yuji
Imabayashi, Hiromichi
subject
Genetic relationship
Gogi
RAPD
Salvelinus
Stream capture
NDC
Zoology
abstract
Genetic relationships were examined among specimens of a subspecies of the Japanese common charr, Salvelinus leucomaenis imbrius (Gogi), distributed around the watershed boundaries in the western Chugoku Mountains on the basis of Random Amplified Polymorphic DNA (RAPD) analysis. A total of 23 fish was collected from 16 branches of 4 rivers. Twenty-one DNA fragments were amplified, among which there were no bands common only to all the individuals of a branch or a river system. A genetical identity was observed among the branches of the two facing river systems across a watershed, the Takatsu and Nishiki River systems. The highest two average Band Sharing Index (BSI) values were also observed between these river systems. Average BSI was the lowest between the Nishiki and Ohta River systems, although their rivermouths are adjacent. BSI between the individuals showed a significantly negative relationship against the distance between the collection sites. Two large clusters comprised the individuals from 3 or all the river systems at BSI level of 0.8. Some intimate clusters were constructed by the facing branches of different river systems. These results suggest that the genetic distance of the Gogi might be strongly determined not by the river system but by the geographical closeness.
journal title
Bulletin of the Hiroshima University Museum
issue
Issue 2
start page
35
end page
41
date of issued
2010-12-25
publisher
広島大学総合博物館
issn
1884-4243
ncid
SelfDOI
language
eng
nii type
Departmental Bulletin Paper
HU type
Departmental Bulletin Papers
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2010 広島大学総合博物館 Hiroshima University Museum
department
Hiroshima University Museum
Graduate School of Biosphere Science
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