鹰嘴豆对温度胁迫的耐受性：改良的现状与机遇。
Chickpea tolerance to temperature stress: Status and opportunity for improvement.
机构信息
School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW, Australia; The Plant Breeding Institute, The University of Sydney, Sydney, NSW, Australia; The Sydney Institute of Agriculture, The University of Sydney, 380 Werombi Rd Brownlow Hill, 2570, Sydney, NSW, Australia.
School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW, Australia; The Plant Breeding Institute, The University of Sydney, Sydney, NSW, Australia.
出版信息
J Plant Physiol. 2021 Dec;267:153555. doi: 10.1016/j.jplph.2021.153555. Epub 2021 Oct 21.
Chickpea is a globally important commercial crop and a key source of protein for vegetarian populations. Though chickpea was domesticated at least 3000 years ago, research into abiotic stress tolerance has been limited compared to cereal crops such as wheat. This review investigates the impacts of heat stress on chickpea, focusing on reproductive development. The fertilisation process is particularly sensitive to environmental stress, such as drought and heat that can reduce yields by up to 70%. Current research has largely focused on breeding cultivars that reach maturity faster to avoid stress rather than true thermotolerance and little is known of the impact of heat on cellular processes. This review suggests that there is ample variation within the chickpea gene pool for selective breeding to achieve improved abiotic stress tolerance. Rates of genetic progress will improve once key QTL are identified and the link between thermotolerance and pollen viability confirmed. Other benefits may arise from better understanding of heat shock proteins and molecular chaperones and their role in the protection of reproductive processes.
鹰嘴豆是一种全球重要的商业作物，也是素食人群蛋白质的主要来源。尽管鹰嘴豆至少在 3000 年前就已经被驯化，但与小麦等谷物作物相比，对非生物胁迫耐受性的研究一直很有限。本综述调查了热应激对鹰嘴豆的影响，重点关注生殖发育。受精过程对环境胁迫特别敏感，如干旱和高温，这可能使产量减少多达 70%。目前的研究主要集中在培育能够更快成熟以避免胁迫的品种上，而不是真正的耐热性，对热对细胞过程的影响知之甚少。本综述表明，在鹰嘴豆基因库中，有足够的变异可供选择性育种，以提高非生物胁迫耐受性。一旦确定关键 QTL 并确认耐热性和花粉活力之间的联系，遗传进展的速度将会提高。更好地了解热休克蛋白和分子伴侣及其在保护生殖过程中的作用，也可能带来其他好处。
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