摘要
抗旱节水生理遗传交叉研究已成为国际植物抗旱节水研究的新生点,目前已对作物抗旱生理性状如ABA,渗透调节,WUE等进行了QTL分析,并进行了转抗旱基因和高光效基因植物的研究.我们对小麦水分利用效率进化和改良的生理遗传基础研究结果表明:随着小麦由2n→4n→6n的进化,旗叶WUE有递增趋势.黑麦4R染色体上有控制高WUE的基因,小麦A组染色体上载有高光合速率和高WUE基因,具体在1AL(长臂),2AL,2AS(短臂)和7AS染色体臂上载有高WUE基因,小麦染色体2AL有控制低蒸腾速率基因.这些研究都为转抗旱节水基因作物的培育打下了一定的基础.
Study of crop drought resistance and water saving is very important in physiology and genetics in the world,some physiology traits, such as ABA and osmoregulation as well as WUE et al,had been analysisedby quantitative trait lociing. There are some study of translating gene of drought resistance and high photosynthesis. The improving fundamental of physiology and genetics of wheat water use efficiency had been studied by us,the results shows :leaf is increasing as wheat evolution from 2n→4n→6n. High WUE is controlled by 4R in Rye. High photosynthesis rate and WUE genes were located on A set chro-mo some,high WUE gene were located on the short arm of 2A and 7A and the long arm of 1A and 2A. Low transpiration gene was located on the long arm of 2A. The foundation of crop improvement by translating gene of drought and water saving were supported by these researches.
出处
《中国农业科技导报》
CAS
CSCD
2000年第5期20-23,共4页
Journal of Agricultural Science and Technology
基金
国家"973"项目
陕西省自然科学基金资助项目
