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IJBT Vol.10 [2011] >
IJBT Vol.10(1) [January 2011] >
| Title: | Genetic structure of hull-less barley (Hordeum vulgare L. subsp. vulgare) landrace populations from North-western Indian Himalayas |
| Authors: | Manjunatha, T
Bisht, I S
Bhat, K V |
| Keywords: | Hull-less barley
Hordeum vulgare L. subsp. vulgare
population structure
population differentiation
North-western Himalayas |
| Issue Date: | Jan-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Seven STMS primers were used to analyse 20
individuals each of 15 populations of North-western Indian Himalayan hull-less
barley landraces. A total of 96 alleles were detected of which 40 were common
and 56 were rare. Administrative regionwise, highest allelic richness was
revealed by populations from Himachal Pradesh (10.71 alleles/locus) followed by
Jammu & Kashmir (8.86 alleles/locus) and Uttarakhand (8.43 alleles/locus).
Greater heterozygosity measures for populations from Himachal Pradesh followed
by Jammu & Kashmir and Uttarakhand were also revealed. Population
differentiation, based on FST measures, was moderate to high for
Uttarakhand accessions (0.43) followed by Himachal Pradesh (0.35) and Jammu
& Kashmir (0.20). A total of 24 unique alleles were present in 15 barley
landrace populations. A maximum of 10 unique alleles were present in
populations from Himachal Pradesh followed by 8 in populations from Jammu &
Kashmir and the least 6 in populations from Uttarakhand. Of the common
localized alleles representing certain specific adaptations, a maximum of 5
alleles were present in populations from Jammu and Kashmir followed by 4 in
populations from Himachal Pradesh and 2 in populations from Uttarakhand.
Analysis of molecular variance (AMOVA) revealed maximum percentage of variation
(56.38%) within populations followed by 42.36% among populations within group
and a marginal 1.26% among groups. The UPGMA dendrogram revealed that 5
landraces from Jammu and Kashmir formed 1 tight and geographically distinct
group at sub-cluster level whereas no such association was found for
populations from Himachal Pradesh and Uttarakhand. |
| Page(s): | 25-32 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0967 (Online); 0972-5849 (Print) |
| Source: | IJBT Vol.10(1) [January 2011]
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