文献类型： 外文期刊

作者： Wang, Zhangjun ¹ ; Li, Qingfeng ² ; Liu, Caixia ² ; Liu, Fenglou ² ; Xu, Nali ² ; Yao, Mingming ² ; Yu, Huixia ² ; Wang, Yanqing ² ; Chen, Jiajing ² ; Bai, Shuangyu ² ; Yang, Jingxin ² ; Sun, Gang ² ; Long, Jiaohui ² ; Fan, Yalei ² ; Kang, Ling ³ ; Li, Hongxia ³ ; Zhang, Xiaogang ² ; Liu, Shengxiang ² ;

作者机构： 1.Nanjing Agr Univ, Cytogenet Inst, State Key Lab Crop Genet & Germplasm Enhancement, Nanjing, Jiangsu, Peoples R China

2.Ningxia Univ, Sch Agr, 489 Helanshan West Rd, Yinchuan, Ningxia, Peoples R China

3.Ningxia Acad Agr Forestry Sci, Inst Crop Sci, Yinchuan, Ningxia, Peoples R China

关键词： Wheat; H. californicum; translocation line; molecular identification; multiple desirable agronomic traits

期刊名称：GENETICS AND MOLECULAR BIOLOGY （ 影响因子：2.087； 五年影响因子：2.635 ）

ISSN： 1415-4757

年卷期： 2022 年 45 卷 3 期

页码：

收录情况： SCI

摘要： Hordeum californicum (H. californicum, 2n=2X=14, (HHc)-H-c), one of the wild relatives of wheat (Triticum aestivum L.), harbors many desirable genes and is a potential genetic resource for wheat improvement. In this study, an elite line ND646 was selected from a BC4F5 population, which was developed using Co-60-gamma irradiated wheat-H. californicum disomic addition line WJ28-1 (DA6H(c)) as the donor parent and Ningchun 4 as the recurrent parent. ND646 was identified as a novel wheat-H. californicum 6H(c)S/6BL translocation line using genomic in situ hybridization (GISH), fluorescence in situ hybridization (FISH), and H.californicum-specific expressed sequence tag (EST) markers. Further evaluation revealed that ND646 had excellent performance in several traits, such as a higher sedimentation value (SV), higher water absorption rate (WAR), and higher hardness index (HI). More importantly, it had more kernels per spike (KPS), a higher grain yields (GY), and good resistance to powdery mildew, leaf rust, and 2,4-D butylate (2,4-D). Its excellent phenotypic performance laid the foundation for further investigation of its genetic architecture and makes ND646 a useful germplasm resource for wheat breeding.