Difference between revisions of "IC4R011-GWAS-2016-26381647"

Revision as of 05:13, 19 July 2016

New insights into the genetic basis of natural chilling and cold shock tolerance in rice by genome-wide association analysis

As one of the major crops, rice is widely grown in tropical, subtropical and temporal regions, and temperature is one of the major environmental factors limiting its geographic distribution. The optimal temperature for rice growth is 25–30°C (Kim et al. 2014).Previous studies on low-temperature stress in rice mainly concentrated on chilling stress (temperature around 10°C), which was frequently used to distinguish it from freezing stress (temperature around 0°C); however, there is no clear definition of chilling or cold/freezing stress, and the treatment temperatures were often different for the same term in many reports (Cheng et al. 2007;Guo et al. 2006; Ma et al. 2015; Wang et al. 2013; Wang et al.2014; Yang et al. 2012). To date, no report has compared different low-temperature stresses such as natural chilling stress with the acute freezing stress in rice. Recent studies have revealed some mechanisms and signalling networks involved in the cold stress response in rice (Knight & Knight 2012; Ma et al. 2015; Wang et al. 2014; Yang et al. 2012).

National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China

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 ==The Background of This Project==
+*As one of the major crops, rice is widely grown in tropical, subtropical and temporal regions, and temperature is one of the major environmental factors limiting its geographic distribution. The optimal temperature for rice growth is 25–30°C (Kim et al. 2014).Previous studies on low-temperature stress in rice mainly concentrated on chilling stress (temperature around 10°C), which was frequently used to distinguish it from freezing stress (temperature around 0°C); however, there is no clear definition of chilling or cold/freezing stress, and the treatment temperatures were often different for the same term in many reports (Cheng et al. 2007;Guo et al. 2006; Ma et al. 2015; Wang et al. 2013; Wang et al.2014; Yang et al. 2012). To date, no report has compared different low-temperature stresses such as natural chilling stress with the acute freezing stress in rice. Recent studies have revealed some mechanisms and signalling networks involved in the cold stress response in rice (Knight & Knight 2012; Ma et al. 2015; Wang et al. 2014; Yang et al. 2012).
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 ==Plant Culture & Treatment==