Publications by authors named "Ramya K Thimmappa"
Marker-assisted backcross breeding enables selective insertion of targeted traits into the genome to improve yield, quality, and stress resistance in wheat. In the current investigation, we transferred four drought tolerance quantitative trait loci (QTLs) controlling traits, canopy temperature, normalized difference vegetative index, chlorophyll content, and grain yield from the drought-tolerant donor line, C306, into a popular high-yielding, drought-sensitive variety, HD2733. Marker-assisted selection coupled with stringent phenotypic screening was used to advance each generation.
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- The study focuses on understanding gene action and interactions affecting stomatal conductance in wheat under high temperatures and late sowing conditions.
- Evidence was found for strong nuclear genetic control of stomatal conductance, with significant genetic differences across four wheat populations tested at different growth stages.
- The research indicates that stomatal conductance in these wheat varieties is influenced by both additive effects and epistatic interactions, suggesting potential for effective breeding strategies to enhance or reduce this trait in future crop improvement programs.