scholarly journals Development of Resistant Gene-Pyramided Japonica Rice for Multiple Biotic Stresses Using Molecular Marker-Assisted Selection

2015 ◽  
Vol 3 (4) ◽  
pp. 333-345 ◽  
Author(s):  
Jung-Pil Suh ◽  
Young-Chan Cho ◽  
Yong-Jae Won ◽  
Eok-Keun Ahn ◽  
Man-Kee Baek ◽  
...  
Keyword(s):  
Molecular Marker ◽  
Marker Assisted Selection ◽  
Japonica Rice ◽  
Biotic Stresses ◽  
Resistant Gene

scholarly journals Association analysis between constructed SNPLDBs and GCA effects of 9 quality-related traits in parents of hybrid rice (Oryza sativa L.)

BMC Genomics ◽  
2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Moaz S. Eltahawy ◽  
Nour Ali ◽  
Imdad U. Zaid ◽  
Dalu Li ◽  
Dina Abdulmajid ◽  
...  
Keyword(s):  
Molecular Marker ◽  
Association Analysis ◽  
Marker Assisted Selection ◽  
Hybrid Rice ◽  
Amylose Content ◽  
Oryza Sativa L ◽  
Brown Rice ◽  
Chromosome 1 ◽  
Japonica Rice ◽  
Quality Traits

Abstract Background The general combining ability (GCA) of parents in hybrid rice affects not only heterotic level of grain yield and other important agronomic traits, but also performance of grain quality traits of F2 bulk population which is the commodity consumed by humans. In order to make GCA improvement for quality traits in parents of hybrid rice by molecular marker assisted selection feasible, genome-wide GCA loci for quality traits in parents were detected through association analysis between the effects of GCA and constructed single nucleotide polymorphism linkage disequilibrium blocks (SNPLDBs), by using unhusked rice grains harvested from F1 plants of 48 crosses of Indica rice and 78 crosses of Japonica rice. GCA-SNPLDBs association analysis. Results Among the 8 CMS and 6 restorer lines of indica rice subspecies, CMS lines Zhenpin A, Zhenshan97 A, and 257A, and restorers Kanghui98, Minghui63 and Yanhui559 were recognized as good general combiners based on their GCA effect values for the 9 quality traits (brown rice rate, milled rice rate, head rice rate, percentage of chalky grains, chalky area size, chalkiness degree, gelatinization temperature, gel consistency and amylose content). Among the 13 CMS and 6 restorer lines of japonica rice subspecies, CMS 863A, 6427A and Xu 2A, and restorers C418, Ninghui8hao and Yunhui4hao showed elite GCA effect values for the 9 traits. GCA-SNPLDB association analysis revealed 39 significant SNPLDB loci associated with the GCA of the 9 quality-related traits, and the numbers of SNPLDB loci located on chromosome 1, 2, 3, 4, 5, 8, 9, 11 and 12 were 1, 4, 3, 9, 6, 5, 5, 4 and 2, respectively. Number of superior GCA alleles for the 9 traits among the 33 parents ranged from 1 to 26. Conclusions Thirty-nine significant SNPLDBs loci were identified associated with the GCA of 9 quality-related traits, and the superior SNPLDB alleles could be used to improve the GCA of parents for the traits in the future by molecular marker assisted selection. The genetic basis of trait GCA in parents is different from that of trait itself.

Improving the Resistance of Wuyunjing 8 to Rice Stripe Virus via Molecular Marker-assisted Selection

2011 ◽  
Vol 37 (5) ◽  
pp. 745-754 ◽  
Author(s):  
Hong-Gen ZHANG ◽  
Zuo-Peng XU ◽  
Peng LI ◽  
Bo LI ◽  
Chao LIU ◽  
...  
Keyword(s):  
Molecular Marker ◽  
Marker Assisted Selection ◽  
Rice Stripe Virus

scholarly journals Molecular marker-assisted selection of the ae alleles in maize

2010 ◽  
Vol 9 (2) ◽  
pp. 1074-1084
Author(s):  
F. Chen ◽  
S.W. Zhu ◽  
Y. Xiang ◽  
H.Y. Jiang ◽  
B.J. Cheng
Keyword(s):  
Molecular Marker ◽  
Marker Assisted Selection ◽  
Selection Of

scholarly journals A selection method of chickens with blue-eggshell and dwarf traits by molecular marker-assisted selection

2019 ◽  
Vol 98 (8) ◽  
pp. 3114-3118
Author(s):  
H.X. Cui ◽  
Q.C. Shen ◽  
M.Q. Zheng ◽  
Y.C. Su ◽  
R.C. Cai ◽  
...  
Keyword(s):  
Molecular Marker ◽  
Marker Assisted Selection ◽  
Selection Method
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