Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/31472
Title: Population structure of upland red rice (Oryza sativa L.) landraces from North-western Indian Himalayas
Authors: Gayacharan
Bisht, I S
Pandey, Avinash
Yadav, M C
Rana, J C
Keywords: Oryza sativa L.;Population structure;Red rice;Upland rice landraces
Issue Date: Jan-2015
Publisher: NISCAIR-CSIR, India
Abstract: Fifteen STMS primer pairs were used to study the intra- and inter-population diversity of four locally common red rice landrace populations of North-western Indian Himalayas, in the states of Himachal Pradesh and Jammu & Kashmir. Two other local rice landraces were also included in the study for comparison. A total of 50 alleles, 48 common and 2 rare, were recorded and the mean number of alleles per locus was 3.33. Molecular diversity in red rice and other landraces was moderate to low with per cent polymorphism ranging from 26.67 to 66.67. Of the 50 alleles, 12 were unique to red rice,  9 were unique to other two landraces and 29 were common across both groups. Analysis of molecular variance (AMOVA) revealed that diversity was partitioned more among populations (72.59%) within groups (red rice vs others), followed by within any given population (19.63%) among groups and least (7.78%) among groups. Pair-wise estimates of FST, computed by distance method using AMOVA approach, among the six populations ranged from 0.07 to 0.92. The adaptive variations among populations for morphological traits revealed significant differences for some important quantitative traits. The phenotypic variations among red rice landrace populations were, however, relatively low. This shows that differentiation for molecular diversity was greater compared to adaptive variations.
Page(s): 42-48
URI: http://hdl.handle.net/123456789/31472
ISSN: 0975-0967 (Online); 0972-5849 (Print)
Appears in Collections:IJBT Vol.14(1) [January 2015]

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