Germplasm improvement for preharvest sprouting resistance in Chinese white-grained wheat: An overview of the current strategy

被引:147
作者
Xiao, SH [1 ]
Zhang, XY [1 ]
Yan, CS [1 ]
Lin, H [1 ]
机构
[1] Chinese Acad Agr Sci, Inst Crop Breeding & Cultivat, Minist Agr, Key Lab Crop Genet & Breeding, Beijing 100081, Peoples R China
关键词
alpha-amylase; preharvest sprouting; wheat;
D O I
10.1023/A:1019679924173
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 [作物学];
摘要
Most modern white-grained wheat (Triticum aestivum L.) cultivars in China lack sprouting resistance. Some white grain varieties showed lower preharvest sprouting percentage in different years. Tolerance to sprouting in most cultivars comes from the varieties, Wanxian White, Fulingxuxu White, Suiningtuotuo, and Yongchuan White. The alpha-amylase inhibitor gene under a wheat genetic background inhibited alpha-amylase activity and delayed sprouting. The falling number of six suspected sources, out of 835 Chinese leading varieties since 1950', was independent of late maturity alpha-amylase.
引用
收藏
页码:35 / 38
页数:4
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