GrainGenes Reference Report: TAG-98-1226
Reference
TAG-98-1226
Title
Genetic diversity among East Asian accessions of the barley core collection as revealed by six isozyme loci
Journal
Theoretical and Applied Genetics
Year
1999
Volume
98
Pages
1226-1233
Author
Liu F Bothmer Rv Salomon B
Abstract
Summary: Studies of allelic variations at six isozyme loci revealed genetic diversity of 380 East Asian accessions of the Barley Core Collection. Genetic variation was found in both cultivars and landraces in different regions. Allelic variations at the Aco-1 and Aco-2 loci were detected for East Asian barley for the first time. Moreover, the Aco-1 locus displayed the highest genetic diversity among the six loci assayed. Indian cultivars showed the highest diversity, followed by Korean and Chinese cultivars. Landraces from Bhutan and Nepal showed the lowest diversity. Cultivars had generally higher diversity than landraces within as well as among regions. The cluster analysis of genetic identity showed that all landraces from different countries can be placed in one group; the cultivars from Japan, India and Korea each form independent groups. Gpi-1 Gu, Pgd-1 Tj, Aco-1 Si, Ndh-2 D and Aco-2 A were rare alleles found in only a few accessions of 6-rowed barley. The Pgd-2 Tn allele was very rare in East Asian accessions
Keyword
alleles
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GrainGenes Reference Report: TAG-98-1226
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||