13 Genetic Control of Gibberellin Metabolism and Signalling in Crop Improvement
Annual Plant Reviews book series, Volume 49: The Gibberellins
Andrew L. Phillips,
Andrew L. Phillips
Plant Biology and Crop Science Department, Rothamsted Research, UK
Search for more papers by this authorAndrew L. Phillips,
Andrew L. Phillips
Plant Biology and Crop Science Department, Rothamsted Research, UK
Search for more papers by this authorThis article was originally published in 2016 in The Gibberellins, Volume 49 (ISBN 9781119210429) of the Annual Plant Reviews book series, this volume edited by Peter Hedden and Stephen G. Thomas. The article was republished in Annual Plant Reviews online in April 2018.
Abstract
Many developmental processes regulated by gibberellin (GA) impact on crop yield and quality, and genetic variants affected in GA biosynthesis or signalling have been widely exploited in agriculture. Notably, these include alleles of Rht-1 and Sd-1 that confer a semi-dwarf habit to wheat and rice, respectively, underpinning the Green Revolution that increased yields in the latter half of the twentieth century. The chapter discusses the utility of various alleles at these and other GA loci in controlling stature, mainly in cereal crops. The scope for the development of additional variants in the GA pathway through mutagenesis or transgenic approaches is also reviewed.
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