Genetic diversity in tropical wheat germplasm and selection via multi‐trait index

2022 ◽  
Author(s):  
Gabriel Wolter Lima ◽  
Caique Machado e Silva ◽  
Henrique Caletti Mezzomo ◽  
Cleiton Renato Casagrande ◽  
Tiago Olivoto ◽  
...  
2021 ◽  
Vol 9 (3) ◽  
pp. 185-198 ◽  
Author(s):  
Muhammad Abdul Hannan ◽  
Nihar Ranjan Saha ◽  
Swapan Kumar Roy ◽  
Sun-Hee Woo ◽  
Muhammad Shahidul Haque

2006 ◽  
Vol 112 (7) ◽  
pp. 1239-1247 ◽  
Author(s):  
Yong-Bi Fu ◽  
Gregory W. Peterson ◽  
Ju-Kyung Yu ◽  
Lifeng Gao ◽  
Jizeng Jia ◽  
...  

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.


2004 ◽  
Vol 51 (5) ◽  
pp. 559-567 ◽  
Author(s):  
Sentayehu Alamerew ◽  
Sabina Chebotar ◽  
Xiuqiang Huang ◽  
Marion Röder ◽  
Andreas Börner

Crop Science ◽  
2016 ◽  
Vol 56 (5) ◽  
pp. 2297-2305 ◽  
Author(s):  
Ki-Seung Kim ◽  
Joshua D. Anderson ◽  
Mark A. Newell ◽  
Sarah M. Grogan ◽  
Patrick F. Byrne ◽  
...  

Crop Science ◽  
2001 ◽  
Vol 41 (3) ◽  
pp. 682-690 ◽  
Author(s):  
M.M. Manifesto ◽  
A.R. Schlatter ◽  
H.E. Hopp ◽  
E.Y. Suárez ◽  
J. Dubcovsky

Euphytica ◽  
2006 ◽  
Vol 149 (3) ◽  
pp. 289-301 ◽  
Author(s):  
M. L. Warburton ◽  
J. Crossa ◽  
J. Franco ◽  
M. Kazi ◽  
R. Trethowan ◽  
...  

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

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

Sign in / Sign up

Export Citation Format

Share Document