Evidence map›Paper›PMID 38498081›Full record

ArticleMolecular biology reports2024

Genetic enhancement of reproductive stage drought tolerance in RPHR-1005R and derivative rice hybrids through marker-assisted backcross breeding in rice (Oryza sativa L.).

N Sravanraju, P Beulah, V Jaldhani, P Nagaraju, A S HariPrasad, P Brajendra, N Sunitha, R M Sundaram, P Senguttuvel

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Article in Molecular biology reports, 2024. 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.

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5 · Who and what money

Authors and funding

9 authors.

N SravanrajuCrop Improvement Section, ICAR-Indian Institute of Rice Research, Hyderabad, 500030, India.
P BeulahCrop Improvement Section, ICAR-Indian Institute of Rice Research, Hyderabad, 500030, India.
V JaldhaniCrop Improvement Section, ICAR-Indian Institute of Rice Research, Hyderabad, 500030, India.
P NagarajuCrop Improvement Section, ICAR-Indian Institute of Rice Research, Hyderabad, 500030, India.
A S HariPrasadCrop Improvement Section, ICAR-Indian Institute of Rice Research, Hyderabad, 500030, India.
P BrajendraCrop Improvement Section, ICAR-Indian Institute of Rice Research, Hyderabad, 500030, India.
N SunithaBiotechnology Department, Jawaharlal Nehru Technological University (JNTU-H), Hyderabad, 500085, India.
R M SundaramCrop Improvement Section, ICAR-Indian Institute of Rice Research, Hyderabad, 500030, India. rms_28@rediffmail.com.
P SenguttuvelCrop Improvement Section, ICAR-Indian Institute of Rice Research, Hyderabad, 500030, India. senguttuvel@gmail.com.

Funding

Indian Council of Agricultural Research ICAR-Indian Institute of Rice Research (ICAR-IIRR), National Innovations on Climate Resilient Agriculture (NICRA) and Govt. of India (F.No. Phy/NICRA/2011-2019).
6 · The paper itself

Abstract

backgroundDrought stress is considered as one of the major production constraints in rice. RPHR-1005R is a restorer line (R-Line) with a popular, medium-slender grain type, and is the male parent of the popular Indian rice hybrid, DRR-H3. However, both the hybrid and its restorer are highly vulnerable to the drought stress, which limits the adoption of the hybrid. Therefore, the selection of the restorer line RPHR-1005R has been made with the objective of enhancing drought tolerance. METHODS AND

resultsIn this study, we have introgressed a major QTL for grain yield under drought (qDTY 1.1) from Nagina22 through a marker-assisted backcross breeding (MABB) strategy. PCR based SSR markers linked to grain yield under drought (qDTY1.1 - RM431, RM11943), fertility restorer genes (Rf3-DRRM-Rf3-10, Rf4-RM6100) and wide compatibility (S5

conclusionsIn summary, the six improved restorer lines could be employed for developing heterotic hybrids possessing reproductive stage drought tolerance. The hybrid combination (APMS6A/RPHR6339-4-16-14-3) was estimated to ensure stable yields in drought-prone irrigated lowlands as well as in directly seeded aerobic and upland areas of India.

Indexed as

Drought ResistanceOryzaEdible GrainGenetic EnhancementPlant BreedingReproductionDrought stressGrain yieldMABBqDTY1.1RPHR-1005R

Identifiers

PMID38498081

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