文献类型： 外文期刊

作者： Zhang Yang ² ; Liu Wan-chen ¹ ; Li Jun ¹ ; Wei Hui-ting ¹ ; Hu Xiao-rong ¹ ; Li Yue-jian ¹ ; Lu Bao-rong ³ ; Yang Wu-yun ¹ ;

作者机构： 1.Sichuan Acad Agr Sci, Crop Res Inst, Chengdu 610066, Peoples R China

2.Sichuan Univ, Sch Life Sci, Chengdu 610064, Peoples R China

3.Fudan Univ, Inst Biodivers Sci, Shanghai 200433, Peoples R China

关键词： vernalization;cornerstone breeding parents of wheat;derivative varieties

期刊名称：AGRICULTURAL SCIENCES IN CHINA （ 影响因子：0.82； 五年影响因子：0.997 ）

ISSN： 1671-2927

年卷期： 2010 年 9 卷 10 期

页码：

收录情况： SCI

摘要： Vernalization, the process of a long exposure to low temperature to induce flowering in plants, is essential for plants to adapt to cold winters. The presence of vernalization genes Vrn-A1, -B1, and -D1 in four cornerstone breeding parents of wheat in China (Funo, Mentana, Yanda 1817, and Bima 4) and 322 derivative varieties (mostly winter wheat) from these parents were determined using PCR based molecular method. The frequencies of the VRN-1 genes in these derivative varieties were in order of Vrn-D1(67.1%) > Vrn-B1(19.6%) > Vrn-A1(5.3%), which are similar as the former conclusion that Vrn-D1 is associated with the latest heading time, Vrn-A1 the earliest, and Vrn-B1 intermediate values. The frequencies of Vrn-A1 and Vrn-B1 loci in the derivative varieties from winter wheat zones were higher than that from spring winter zones. Based on the wheat breeding history in China and the fact of non-random distribution of Vrn-A1 and Vrn-B1 in the derivative varieties from the four parents, there could be a strong selective effect on VRN-1 genes in different regions where the derivative varieties were cultivated.