Molecular characterization of a wheat -Thinopyrum ponticum partial amphiploid and its derived substitution line for resistance to stripe rust

2011 ◽  
Vol 52 (3) ◽  
pp. 279-285 ◽  
Author(s):  
Li-Jun Hu ◽  
Guang-Rong Li ◽  
Zi-Xian Zeng ◽  
Zhi-Jian Chang ◽  
Cheng Liu ◽  
...  
Genome ◽  
2017 ◽  
Vol 60 (10) ◽  
pp. 860-867 ◽  
Author(s):  
Chen Zhu ◽  
Yanzhen Wang ◽  
Chunhuan Chen ◽  
Changyou Wang ◽  
Aicen Zhang ◽  
...  

Thinopyrum ponticum (Th. ponticum) (2n = 10x = 70) is an important breeding material with excellent resistance and stress tolerance. In this study, we characterized the derivative line CH1113-B13-1-1-2-1 (CH1113-B13) through cytological, morphological, genomic in situ hybridization (GISH), fluorescence in situ hybridization (FISH), expressed sequence tag (EST), and PCR-based landmark unique gene (PLUG) marker analysis. The GISH analysis revealed that CH1113-B13 contained 20 pairs of common wheat chromosomes and one pair of JSt genomic chromosomes. Linkage analysis of Th. ponticum using seven EST and seven PLUG markers indicated that the pair of alien chromosomes belonged to the seventh homeologous group. Nulli-tetrasomic and FISH analysis revealed that wheat 7B chromosomes were absent in CH1113-B13; thus, CH1113-B13 was identified as a 7JSt (7B) substitution line. Finally, adult-stage CH1113-B13 exhibited immunity to wheat stripe rust. This substitution line is therefore a promising germplasm resource for wheat breeding.


2013 ◽  
Vol 62 ◽  
pp. 11-18 ◽  
Author(s):  
Yulin Cheng ◽  
Hongchang Zhang ◽  
Juanni Yao ◽  
Qingmei Han ◽  
Xiaojie Wang ◽  
...  

2011 ◽  
Vol 55 (4) ◽  
Author(s):  
G. Zhang ◽  
Y. -M. Li ◽  
Y. -F. Sun ◽  
J. -M. Wang ◽  
B. Liu ◽  
...  

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