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Improvement of two traditional Basmati rice varieties for bacterial blight resistance and plant stature through morphological and marker-assisted selection

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Relation http://oar.icrisat.org/7379/
http://dx.doi.org/10.1007/s11032-012-9779-7
 
Title Improvement of two traditional Basmati rice varieties for bacterial blight resistance and plant stature through morphological and marker-assisted selection
 
Creator Pandey, M K
Shobha Rani, N
Sundaram, R M
Laha, G S
Madhav, M S
Srinivasa Rao, K
Sudharshan, I
Hari, Y
Varaprasad, G S
Subba Rao, L V
Suneetha, K
Sivaranjani, A K P
Viraktamath, B C
 
Subject Genetics and Genomics
Agriculture-Farming, Production, Technology, Economics
 
Description Bacterial blight (BB) is a major production threat to Basmati, the aromatic rice prized for its unique quality. In order to improve the BB resistance of two elite, traditional BB-susceptible Basmati varieties (Taraori Basmati and Basmati 386), we utilized the strategy of limited marker-assisted backcrossing for introgression of two major BB resistance genes, Xa21 and xa13, coupled with phenotype-based selection for improvement of their plant type and yield. Improved Samba Mahsuri, an elite high-yielding, fine-grain-type BB-resistant rice variety served as donor for BB resistance. Backcross-derived improved Basmati lines at BC1F5 possessing a single resistance gene (i.e. either Xa21 or xa13) displayed moderate resistance to BB, while lines possessing both Xa21 and xa13 showed significantly higher levels of resistance. Two-gene pyramid lines (Xa21 + xa13) possessing good grain and cooking quality similar to their respective traditional Basmati parents, short plant stature (
 
Publisher Springer Netherlands
 
Date 2013
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/7379/1/MolBreeding_31_239-246_2013.pdf
Pandey, M K and Shobha Rani, N and Sundaram, R M and Laha, G S and Madhav, M S and Srinivasa Rao, K and Sudharshan, I and Hari, Y and Varaprasad, G S and Subba Rao, L V and Suneetha, K and Sivaranjani, A K P and Viraktamath, B C (2013) Improvement of two traditional Basmati rice varieties for bacterial blight resistance and plant stature through morphological and marker-assisted selection. Molecular Breeding, 31 (1). pp. 239-246. ISSN 1572-9788