Impact of plant breeding on genetic diversity of the Canadian hard red spring wheat germplasm as revealed by EST-derived SSR markers

2006 ◽  
Vol 112 (7) ◽  
pp. 1239-1247 ◽  
Author(s):  
Yong-Bi Fu ◽  
Gregory W. Peterson ◽  
Ju-Kyung Yu ◽  
Lifeng Gao ◽  
Jizeng Jia ◽  
...  
Crop Science ◽  
1993 ◽  
Vol 33 (6) ◽  
pp. 1420-1420 ◽  
Author(s):  
S. P. Lanning ◽  
L. E. Talbert ◽  
G. D. Johnson

2021 ◽  
Vol 12 ◽  
Author(s):  
Pooja Sihag ◽  
Vijeta Sagwal ◽  
Anuj Kumar ◽  
Priyanka Balyan ◽  
Reyazul Rouf Mir ◽  
...  

A large proportion of the Asian population fulfills their energy requirements from wheat (Triticum aestivum L.). Wheat quality and yield are critically affected by the terminal heat stress across the globe. It affects approximately 40% of the wheat-cultivating regions of the world. Therefore, there is a critical need to develop improved terminal heat-tolerant wheat varieties. Marker-assisted breeding with genic simple sequence repeats (SSR) markers have been used for developing terminal heat-tolerant wheat varieties; however, only few studies involved the use of microRNA (miRNA)-based SSR markers (miRNA-SSRs) in wheat, which were found as key players in various abiotic stresses. In the present study, we identified 104 heat-stress-responsive miRNAs reported in various crops. Out of these, 70 miRNA-SSR markers have been validated on a set of 20 terminal heat-tolerant and heat-susceptible wheat genotypes. Among these, only 19 miRNA-SSR markers were found to be polymorphic, which were further used to study the genetic diversity and population structure. The polymorphic miRNA-SSRs amplified 61 SSR loci with an average of 2.9 alleles per locus. The polymorphic information content (PIC) value of polymorphic miRNA-SSRs ranged from 0.10 to 0.87 with a mean value of 0.48. The dendrogram constructed using unweighted neighbor-joining method and population structure analysis clustered these 20 wheat genotypes into 3 clusters. The target genes of these miRNAs are involved either directly or indirectly in providing tolerance to heat stress. Furthermore, two polymorphic markers miR159c and miR165b were declared as very promising diagnostic markers, since these markers showed specific alleles and discriminated terminal heat-tolerant genotypes from the susceptible genotypes. Thus, these identified miRNA-SSR markers will prove useful in the characterization of wheat germplasm through the study of genetic diversity and population structural analysis and in wheat molecular breeding programs aimed at terminal heat tolerance of wheat varieties.


Crop Science ◽  
1987 ◽  
Vol 27 (2) ◽  
pp. 373-374 ◽  
Author(s):  
F. A. Cholick ◽  
J. H. Hatchett ◽  
D. K. Steiger ◽  
L. Keim

Crop Science ◽  
1989 ◽  
Vol 29 (4) ◽  
pp. 1097-1097 ◽  
Author(s):  
H. H. Mondel ◽  
R. J. Morrison ◽  
H. McKenzie

2006 ◽  
Vol 17 (1) ◽  
pp. 69-77 ◽  
Author(s):  
C. Y. Hao ◽  
X. Y. Zhang ◽  
L. F. Wang ◽  
Y. S. Dong ◽  
X. W. Shang ◽  
...  

2005 ◽  
Vol 110 (8) ◽  
pp. 1505-1516 ◽  
Author(s):  
Yong-Bi Fu ◽  
Gregory W. Peterson ◽  
Ken W. Richards ◽  
Daryl Somers ◽  
Ron M. DePauw ◽  
...  

2015 ◽  
Vol 41 (11) ◽  
pp. 1671 ◽  
Author(s):  
Ying LIU ◽  
Qiao-Feng ZHANG ◽  
Bi-Sheng FU ◽  
Shi-Bin CAI ◽  
Yan-Jie JIANG ◽  
...  

Crop Science ◽  
1994 ◽  
Vol 34 (6) ◽  
pp. 1628-1632 ◽  
Author(s):  
H. B. Chen ◽  
J. M. Martin ◽  
M. Lavin ◽  
L. E. Talbert

2014 ◽  
Vol 8 (2) ◽  
pp. 221-225
Author(s):  
Dean Spaner ◽  
Alireza Navabi ◽  
Klaus Strenzke ◽  
Muhammad Asif ◽  
Anita Brule-Babel

Crop Science ◽  
2001 ◽  
Vol 41 (6) ◽  
pp. 2010-2011
Author(s):  
R.E. Knox ◽  
H.L. Campbell ◽  
R.M. DePauw ◽  
M.F. Fernandez ◽  
J.M. Clarke

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