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

被引：0
|
作者：
Wang, Xiaolu [1 ,2 ,3 ]
Yu, Zhihui [4 ]
Wang, Hongjin [4 ]
Li, Jianbo [1 ,2 ,3 ]
Han, Ran [1 ,2 ,3 ]
Xu, Wenjing [1 ,2 ,3 ]
Li, Guangrong [4 ]
Guo, Jun [1 ,2 ,3 ]
Zi, Yan [1 ,2 ,3 ]
Li, Faji [2 ,3 ]
Cheng, Dungong [1 ,2 ,3 ]
Liu, Aifeng [1 ,2 ,3 ]
Li, Haosheng [1 ,2 ,3 ]
Yang, Zujun [4 ]
Liu, Jianjun [1 ,2 ,3 ]
Liu, Cheng [1 ,2 ,3 ]
机构：
[1] Shandong Acad Agr Sci, Crop Res Inst, Jinan, Peoples R China
[2] Minist Agr, Key Lab Wheat Biol & Genet Improvement North Huan, Jinan, Peoples R China
[3] Natl Engn Lab Wheat & Maize, Jinan, Peoples R China
[4] Univ Elect Sci & Technol China, Sch Life Sci & Technol, Chengdu, Peoples R China
来源：
FRONTIERS IN PLANT SCIENCE | 2021年 / 12卷
关键词：
Aegilops sharonensis; chromosome derivatives; cytogenetic identification; PLUG marker; powdery mildew resistance; STEM RUST; POWDERY MILDEW; LEAF RUST; RESISTANCE GENES; HYBRID; ALIEN; EIG; GENETICS; MUTATION; WILD;
D O I：
10.3389/fpls.2021.708551
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
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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页数：12
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