GrainGenes Reference Report: ACN-3-721
Reference
ACN-3-721
Title
Allelic variation and genetic diversity at HMW glutenin subunits loci in Yunnan, Tibetan and Xinjiang wheat
Journal
Agricultural Sciences in China
Year
2004
Volume
3
Pages
721-727
Author
Wang H Wang X Chen P Liu D
Abstract
Allelic variation and genetic diversity of high-molecular-weight (HMW) glutenin subunit loci (Glu-A1, Glu-B1 and Glu-D1) were investigated in 64 accessions of 3 unique wheats of western China using SDS-PAGE. Two HMW glutenin patterns in 34 Yunnan wheat accessions, 3 HMW glutenin patterns in 24 Tibetan accessions, and 1 HMW glutenin pattern in 6 Xinjiang wheat accessions were found. The Tibetan accession TB18 had a rare subunit 2 encoded by Glu-D1. A total of 4 (Glu-A1c, Glu-B1a, Glu-B1b and Glu-D1a), 5 (Glu-A1c, Glu-B1d, Glu-B1b, Glu-D1a and Glu-D1) and 3 alleles (Glu-A1c, Glu-B1a and Glu-D1a) at Glu-1 locus were identified in the Yunnan, Tibetan and Xinjiang unique wheat accessions, respectively. For Yunnan wheat, Tibetan wheat and Xinjiang wheat, the Nei's mean genetic variation indexes were 0.1574, 0.1366 and 0, respectively, which might indicate the higher genetic diversity at HMW glutenin subunit loci of Yunnan and Tibetan wheat accessions compared to that of Xinjiang wheat accessions. Among the 3 genomes of hexaploid wheats of western China, the highest Nei's genetic variation index was recorded for the B genome (mean value of 0.2674); the indexes for genomes A and D were 0 and 0.0270, respectively. Genetic diversity was highest in Glu-B1, intermediate in Glu-D1, and lowest in Glu-A1
Keyword
alleles
[ Show all 16 ]
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: ACN-3-721
|
| |||||
|
| |||||
|
| |||||
|
| |||||
|
| |||||
|
| |||||
|
| |||||
|
| |||||
|
|
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||