Document Detail


Climatic effects on microsatellite diversity in wild emmer wheat (Triticum dicoccoides) at the Yehudiyya microsite, Israel.
MedLine Citation:
PMID:  12136415     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Microsatellite (SSR) diversity at 28 loci comprising seven types of tandem dinucleotide repeated motifs was analyzed in 105 individual plants of wild emmer wheat, Triticum dicoccoides, from a microsite in Yehudiyya, northeast of the Sea of Galilee, Israel. The study area was less than 1000 m(2) and involved 12 paired plots distributed in a mosaic pattern. Each experiment involved very close (a few meters apart), but sharply divergent, microclimatic niches in the open park forest of Tabor oak: (1) sun, between trees, and (2) shade, under tree canopy. Significant microclimatic divergence characterized many loci displaying asymmetric and non-random distribution of repeat numbers. Niche-specific and niche-unique alleles and linkage disequilibria were found in the two sub-populations. Microsatellite diversity at both single- and two-locus levels is affected by microclimatic environment. The evidence reflects effects of ecological stresses and natural selection on SSR diversity, resulting presumably in adaptive structures.
Authors:
Y-C Li; M S Röder; T Fahima; V M Kirzhner; A Beiles; A B Korol; E Nevo
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Heredity     Volume:  89     ISSN:  0018-067X     ISO Abbreviation:  Heredity     Publication Date:  2002 Aug 
Date Detail:
Created Date:  2002-07-23     Completed Date:  2003-02-12     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0373007     Medline TA:  Heredity     Country:  England    
Other Details:
Languages:  eng     Pagination:  127-32     Citation Subset:  IM    
Affiliation:
Institute of Evolution, University of Haifa, Mount Carmel, Haifa 31905, Israel.
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MeSH Terms
Descriptor/Qualifier:
Climate
Genetic Variation*
Israel
Microsatellite Repeats / genetics*
Seasons
Triticum / genetics*

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


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