Genetic diversity of ICARDA's worldwide barley landrace collection

Jilal, Abderrazek, Grando, Stefania, Henry, Robert J., Lee, L. Slade, Rice, Nicole, Hill, Helen, Baum, Michael and Ceccarelli, Salvatore (2008) Genetic diversity of ICARDA's worldwide barley landrace collection. Genetic Resources and Crop Evolution, 55 8: 1221-1230.


Author Jilal, Abderrazek
Grando, Stefania
Henry, Robert J.
Lee, L. Slade
Rice, Nicole
Hill, Helen
Baum, Michael
Ceccarelli, Salvatore
Title Genetic diversity of ICARDA's worldwide barley landrace collection
Journal name Genetic Resources and Crop Evolution   Check publisher's open access policy
ISSN 0925-9864
1573-5109
Publication date 2008-12
Sub-type Article (original research)
DOI 10.1007/s10722-008-9322-1
Volume 55
Issue 8
Start page 1221
End page 1230
Total pages 10
Place of publication Dordrecht, The Netherlands
Publisher Springer Netherlands
Language eng
Formatted abstract Twenty genic- and genomic SSR markers were used to study genetic diversity and geographical differentiation of barley from 29 countries through analysis of a worldwide collection of 304 ICARDA's barley landraces. Of these, 19 loci were highly polymorphic in the material studied. Based on Nei-distance matrix, Principal Component Analysis (PCoA) and cluster analysis using UPGMA associated with AMOVA the data revealed countries' grouping within regions. Three distinct germplasm pools were identified in the landraces. The first of these was from Eastern Africa (Eritrea and Ethiopia) and South America (Ecuador, Peru and Chile) suggesting that barley introduced to South America might have originated specifically from East Africa or that they share a common genetic basis for adaptation. The second was the Caucasus (Armenia and Georgia) and the third included the remaining regions of Central Asia, Near East, Northern Africa and Eastern Asia. Genetic diversity of barley subspecies (Six-rowed barley, Two-rowed barley, H. spontaneum C. Koch and H. agriocrithon Åberg) also discriminates them into three groups: cultivated barleys (Six-rowed barley and Two-rowed barley), wild barley H. spontaneum and subspecies H. agriocrithon. These results associated with parsimony analysis demonstrate that H. agriocrithon and H. spontaneum might be distinct and do not support a hybrid origin for H. agriocrithon suggesting further investigation of the basis of more intense sampling of the two subspecies H. spontaneum and H. agriocrithon. © 2008 Springer Science+Business Media B.V.
Keyword Germplasm
Hordeum
Microsatellite
Ssr
Hordeum-vulgare L.
Microsatellite Markers
Wild Barley
Cultivated Barley
Ssr Markers
Populations
Domestication
Dna
Differentiation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: Queensland Alliance for Agriculture and Food Innovation
ERA 2012 Admin Only
 
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