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Genetic advances in adapting rice to a rapidly changing climate

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Title Genetic advances in adapting rice to a rapidly changing climate
 
Creator Jagadish, Krishna S.V.
Septiningsih, E.M.
Kohli A
Thomson, M.J.
Ye C
Redoña E
Kumar, Arvind
Gregorio, G.B.
Wassmann, Reiner
Ismail, A.M.
Singh, RK
 
Subject agriculture
climate
rice
 
Description Rice, with its wide geographic distribution extending from 50°N to 35°S, is expected to be the most vulnerable cultivated crop to future changing climates. Among the different abiotic stresses, extreme temperatures coinciding with critical developmental stages, increasingly frequent floods and drought spells, and worsening sea water inundation are some of the major threats to sustainable rice productivity. Following the successful implementation of molecular marker-assisted backcrossing to introgress large-effect QTL for submergence tolerance in rice mega varieties, rice breeding for drought, salinity and, recently, heat tolerance is employing the same approach. Although tolerance for combined submergence and salinity has been achieved, developing rice varieties with multiple tolerance for other abiotic and biotic stresses and finding the appropriate agronomic package to exploit their performance remain a challenge. The major bottleneck is the lack of unidentified large-effect QTL for other abiotic stresses that are strongly influenced by genotype × environment (G × E) interaction. Rapid advances in the use of molecular tools, including a plethora of SNP markers, are expected to facilitate the development of major abiotic stress-tolerant rice. In response to the actual farmer field situation, progress achieved in understanding and developing independent abiotic stress tolerance is being exploited to combine tolerances (for example, heat and drought; salinity and submergence) to address emerging environmental problems across a wide range of rice ecosystems.
 
Date 2012-10
2014-08-15T12:13:11Z
2014-08-15T12:13:11Z
 
Type Journal Article
 
Identifier Jagadish SVK, Septiningsih EM, Kohli A, Thomson MJ, Ye C, Redoña E, Kumar A, Gregorio GB, Wassmann R, Ismail AM, Singh RK. 2012. Genetic advances in adapting rice to a rapidly changing climate. Journal of Agronomy and Crop Science 198(5):360-373.
https://hdl.handle.net/10568/41940
https://doi.org/10.1111/j.1439-037X.2012.00525.x
 
Language en
 
Rights Copyrighted; all rights reserved
Limited Access
 
Format p. 360-373
 
Publisher Wiley
 
Source Journal of Agronomy and Crop Science