Variation of grain quality characters and marker-trait association in rice (Oryza sativa L.)
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Date
2020-01
Journal Title
Journal ISSN
Volume Title
Publisher
Indian Academy of Sciences
Abstract
A set of 24 genotypes were studied for 17 grain quality characters and validated with the reported associated rice microsatellite markers with grain quality characters. Using 23 polymorphic markers distributed across 11 chromosomes marker-trait associations were studied. The percentage of polymorphism information content (PIC) of the markers ranged between 54.0 and 86.7. Eight markers with [80% and seven markers with[70% of PIC were found to be efficient in differentiating the studied grain quality characters. A total of 37 significant marker-trait associations (P B 0.09) were found with R2 ranging from 4.70% to 43.80%. Eight markers a (RM246, RM11, RM241, RM16427, RM421, RM3, RM234 and RM257) showed association with more than one character suggesting their utility for the selection for grain quality characters which can be deployed in the rice crop improvement programme
Description
Keywords
grain quality, microsatellite markers, association, validation.
Citation
Suman K., Madhubabu P., Rathod Ramya, Rao D. Sanjeeva, Rojarani A., Prashant S., Subbarao L. V., Ravindrababu V., Neeraja C. N.. Variation of grain quality characters and marker-trait association in rice (Oryza sativa L.). Journal of Genetics. 2020 Jan; 99: 1-12