Development and identification of an elite wheat-Hordeum californicum T6HcS/6BL translocation line ND646 containing several desirable traits

文献类型： 外文期刊

第一作者： Wang, Zhangjun

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

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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

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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.

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