Document Detail


Genetic diversity and structure of natural fragmented Chamaecyparis obtusa populations as revealed by microsatellite markers.
MedLine Citation:
PMID:  20091205     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The genetic diversity and population structure of hinoki (Chamaecyparis obtusa) in Japan were investigated by examining the distribution of alleles at 13 microsatellite loci in 25 natural populations from Iwaki in northern Japan to Yakushima Island in southern Japan. On average, 26.9 alleles per locus were identified across all populations and 4.0% of the genetic variation was retained among populations (G(ST) = 0.040). According to linkage disequilibrium analysis, estimates of effective population size and detected evidence of bottleneck events, the genetic diversity of some populations may have declined as a result of fragmentation and/or over-exploitation. The central populations located in the Chubu district appear to have relatively large effective population sizes, while marginal populations, such as the Yakushima, Kobayashi and Iwaki populations, have smaller effective population sizes and are isolated from the other populations. Microsatellite analysis revealed the genetic uniqueness of the Yakushima population. Although genetic differentiation between populations was low, we detected a gradual cline in the genetic structure and found that locus Cos2619 may be non-neutral with respect to natural selection.
Authors:
Asako Matsumoto; Kohji Uchida; Yuriko Taguchi; Naoki Tani; Yoshihiko Tsumura
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-01-21
Journal Detail:
Title:  Journal of plant research     Volume:  123     ISSN:  1618-0860     ISO Abbreviation:  J. Plant Res.     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-08-18     Completed Date:  2010-10-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9887853     Medline TA:  J Plant Res     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  689-99     Citation Subset:  IM    
Affiliation:
Department of Forest Genetics, Forestry and Forest Products Research Institute, Tsukuba, Ibaraki, Japan. asakon@ffpri.affrc.go.jp
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MeSH Terms
Descriptor/Qualifier:
Alleles
Chamaecyparis / genetics*
Genetic Drift
Genetic Structures
Genetic Variation
Japan
Linkage Disequilibrium
Microsatellite Repeats*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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