期刊
FUNCTIONAL PLANT BIOLOGY
卷 47, 期 8, 页码 675-694出版社
CSIRO PUBLISHING
DOI: 10.1071/FP19372
关键词
cereals; crop; flower; heterosis; mutants; spike
资金
- University of Adelaide
- Australian Government
Hybrid breeding in wheat (Triticum aestivumL.) has the potential to deliver major yield increases. This is a requisite to guarantee food security for increasing population demands and to counterbalance the effects of extreme environmental conditions. Successful hybrid breeding in wheat relies on forced outcrossing while preventing self-pollination. To achieve this, research has been directed towards identifying and improving fertility control systems. To maximise cross-pollination and seed set, however, fertility control systems need to be complemented by breeding phenotypically distinct male and female lines. This review summarises existing and novel male sterility systems for wheat hybridisation. We also consider the genetic resources that can be used to alter wheat's floral development and spike morphology, with a focus on the genetic variation already available. Exploiting these resources can lead to enhanced outcrossing, a key requirement in the progress towards hybrid wheat breeding.
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