Characterization, Identification and Evaluation of Wheat-Aegilops sharonensis Chromosome Derivatives

文献类型： 外文期刊

第一作者： Wang, Xiaolu

作者： Wang, Xiaolu;Li, Jianbo;Han, Ran;Xu, Wenjing;Guo, Jun;Zi, Yan;Cheng, Dungong;Liu, Aifeng;Li, Haosheng;Liu, Jianjun;Liu, Cheng;Wang, Xiaolu;Li, Jianbo;Han, Ran;Xu, Wenjing;Guo, Jun;Zi, Yan;Li, Faji;Cheng, Dungong;Liu, Aifeng;Li, Haosheng;Liu, Jianjun;Liu, Cheng;Wang, Xiaolu;Li, Jianbo;Han, Ran;Xu, Wenjing;Guo, Jun;Zi, Yan;Li, Faji;Cheng, Dungong;Liu, Aifeng;Li, Haosheng;Liu, Jianjun;Liu, Cheng;Yu, Zhihui;Wang, Hongjin;Li, Guangrong

作者机构：

关键词： Aegilops sharonensis; chromosome derivatives; cytogenetic identification; PLUG marker; powdery mildew resistance

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.754； 五年影响因子：6.612 ）

ISSN： 1664-462X

年卷期： 2021 年 12 卷

页码：

收录情况： SCI

摘要： Aegilops sharonensis, a wild relative of wheat, harbors diverse disease and insect resistance genes, making it a potentially excellent gene source for wheat improvement. In this study, we characterized and evaluated six wheat-A. sharonensis derivatives, which included three disomic additions, one disomic substitution + monotelosomic addition and two disomic substitution + disomic additions. A total of 51 PLUG markers were developed and used to allocate the A. sharonensis chromosomes in each of the six derivatives to Triticeae homoeologous groups. A set of cytogenetic markers specific for A. sharonensis chromosomes was established based on FISH using oligonucleotides as probes. Molecular cytogenetic marker analysis confirmed that these lines were a CS-A. sharonensis 2S(sh) disomic addition, a 4S(sh) disomic addition, a 4S(sh) (4D) substitution + 5S(sh)L monotelosomic addition, a 6S(sh) disomic addition, a 4S(sh) (4D) substitution + 6S(sh) disomic addition and a 4S(sh) (4D) substitution + 7S(sh) disomic addition line, respectively. Disease resistance investigations showed that chromosome 7S(sh) of A. sharonensis might harbor a new powdery mildew resistance gene, and therefore it has potential for use as resistance source for wheat breeding.

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