Authors:
Q. MoNorthwest A&F University, Yangling, Shaanxi 712100, China

Search for other papers by Q. Mo in
Current site
Google Scholar
PubMed
Close
,
C.Y. WangNorthwest A&F University, Yangling, Shaanxi 712100, China

Search for other papers by C.Y. Wang in
Current site
Google Scholar
PubMed
Close
,
C.H. ChenNorthwest A&F University, Yangling, Shaanxi 712100, China

Search for other papers by C.H. Chen in
Current site
Google Scholar
PubMed
Close
,
Y.J. WangNorthwest A&F University, Yangling, Shaanxi 712100, China

Search for other papers by Y.J. Wang in
Current site
Google Scholar
PubMed
Close
,
H. ZhangNorthwest A&F University, Yangling, Shaanxi 712100, China

Search for other papers by H. Zhang in
Current site
Google Scholar
PubMed
Close
,
X.L. LiuNorthwest A&F University, Yangling, Shaanxi 712100, China

Search for other papers by X.L. Liu in
Current site
Google Scholar
PubMed
Close
, and
W.Q. JiNorthwest A&F University, Yangling, Shaanxi 712100, China

Search for other papers by W.Q. Ji in
Current site
Google Scholar
PubMed
Close
Restricted access

Thinopyrum ponticum (2n = 10x = 70) has donated rust resistance genes to protect wheat from this fungal disease. In the present study, the line ES-7, derived from the progeny of the crosses between common wheat cultivar Abbondanza and Triticum aestivumTh. ponticum partial amphiploid line Xiaoyan784, was characterized by cytological, fluorescence in situ hybridization (FISH), genomic in situ hybridization (GISH) and EST-STS marker techniques. Cytological observations revealed that the configuration of ES-7 was 2n = 42 = 21 II. GISH and FISH results showed that ES-7 had two St chromosomes and lacked 5A chromosomes compared to common wheat. The 4A chromosome of ES-7 had small alterations from common wheat. Two EST-SSR markers BE482522 and BG262826, specific to Th. ponticum and tetraploid Pseudoroegneria spicata (2n = 4x = 28), locate on the homoeologous group 5 chromosomes of wheat, could amplify polymorphic bands in ES-7. It was suggested that the introduced St chromosomes belonged to homoeologous group 5, that is, ES-7 was a 5St (5A) disomic substitution line. Furthermore, ES-7 showed highly resistance to mixed stripe rust races of CYR32 and CYR33 in adult stages, which was possibly inherited from Th. ponticum. Thus, ES-7 can be used for wheat stripe rust resistance breeding program.

Supplementary Materials

    • Supplementary Material
  • Collapse
  • Expand

 

 

To see the editorial board, please visit the website of Springer Nature.

Manuscript Submission: HERE

 

 

For subscription options, please visit the website of Springer Nature.

Cereal Research Communications
Language English
Size A4
Year of
Foundation
1973
Volumes
per Year
1
Issues
per Year
4
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0133-3720 (Print)
ISSN 1788-9170 (Online)