ArticleScientific reports2025
Transfer of deeper rooting and phosphorus uptake QTL into the popular rice variety 'maudamani' via marker-assisted backcross breeding.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Pyramiding QTLs for durable sheath blight resistance in the popular rice variety 'Maudamani'.Scientific reports · 2026Article
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Abstract
Rice suffers from drought stress due to its shallow roots, hindering water uptake from deeper soil layers. Transfer of deeper rooting QTL will modify the root architecture of the plant allowing it to extract moisture from deeper layers of the soil. Furthermore, poor soil conditions, particularly phosphorus deficiency is a common problem in the rainfed rice ecology of India which requires adequate phosphate fertilizer for obtaining higher yield. In this current investigation, two QTL (DRO1 and DRO3) for deeper rooting and one QTL for phosphorus uptake (Pup1) were introgressed into a popular variety, 'Maudamani' through marker-assisted backcross breeding. The target QTL were transferred from a pre-breed genotype, CR3996-19-9-45-1 into the popular variety. Foreground selection was performed using the tightly linked microsatellite markers in the backcross generations progenies to select plants carrying the target QTL. Background selection in each backcross generations was performed using 123 polymorphic SSR markers spread across twelve chromosomes. In each backcross generations, plants carrying all three target QTL and with highest recurrent parent genome recovery percentage was used to backcross with the popular variety, Maudamani. In BC
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