scholarly journals Identification and fine‐mapping of RppCML496 , a major QTL for resistance to Puccinia polysora in maize

2020 ◽  
Author(s):  
Meng Lv ◽  
Ce Deng ◽  
Xueying Li ◽  
Xiaodi Zhao ◽  
Huimin Li ◽  
...  
Keyword(s):  
Fine Mapping ◽  
Puccinia Polysora ◽  
Major Qtl

scholarly journals Identification and Fine Mapping of qSCR4.01, a Novel Major QTL for Resistance to Puccinia polysora in Maize

Plant Disease ◽  
2020 ◽  
Vol 104 (7) ◽  
pp. 1944-1948
Author(s):  
Ce Deng ◽  
Meng Lv ◽  
Xueying Li ◽  
Xiaodi Zhao ◽  
Huimin Li ◽  
...  
Keyword(s):  
Fine Mapping ◽  
Chromosome 4 ◽  
Yield Losses ◽  
Maize Breeding ◽  
Breeding Programs ◽  
Mapping Strategy ◽  
Resistant Varieties ◽  
Puccinia Polysora ◽  
High Heritability ◽  
Major Qtl

Southern corn rust (SCR) is a prevalent foliar disease that can lead to severe yield losses in maize. Growing SCR-resistant varieties is the most effective way to control the disease. To identify major quantitative trait loci (QTLs) for SCR resistance, a recombinant inbred line population derived from a cross between CIMBL83 (resistant) and Lx9801 (susceptible) was analyzed. The resistance to SCR had high heritability within the population, and a major QTL on chromosome 4 (qSCR4.01), which can explain 48 to 65% of the total phenotypic variation, was consistently detected across multiple environments. Using a progeny-based fine-mapping strategy, we delimited qSCR4.01 to an interval of ∼770 kb. In contrast to other major QTLs for SCR resistance previously reported on the short arm of chromosome 10, qSCR4.01 is a novel QTL and, therefore, a desirable source of SCR resistance in maize breeding programs.

Fine Mapping and Genetic Effect Analysis of qKRN5.04, a Major QTL Associ-ated with Kernel Row Number in Maize

2017 ◽  
Vol 43 (1) ◽  
pp. 63 ◽  
Author(s):  
Na BAI ◽  
Yong-Xiang LI ◽  
Fu-Chao JIAO ◽  
Lin CHEN ◽  
Chun-Hui LI ◽  
...  
Keyword(s):  
Fine Mapping ◽  
Genetic Effect ◽  
Effect Analysis ◽  
Major Qtl ◽  
Kernel Row Number

Fine mapping TaFLW1, a major QTL controlling flag leaf width in bread wheat (Triticum aestivum L.)

2013 ◽  
Vol 126 (8) ◽  
pp. 1941-1949 ◽  
Author(s):  
Shulin Xue ◽  
Feng Xu ◽  
Guoqiang Li ◽  
Yan Zhou ◽  
Musen Lin ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Bread Wheat ◽  
Fine Mapping ◽  
Flag Leaf ◽  
Triticum Aestivum L ◽  
Leaf Width ◽  
Flag Leaf Width ◽  
Major Qtl

scholarly journals Identification and fine-mapping of a major QTL (qRtsc8-1) conferring resistance to maize tar spot complex and production markers validation in breeding lines

2021 ◽  
Author(s):  
Jiaojiao Ren ◽  
Penghao Wu ◽  
Gordon M. Huestis ◽  
Ao Zhang ◽  
Jingtao Qu ◽  
...  
Keyword(s):  
Latin American ◽  
Fine Mapping ◽  
Genome Wide Association Study ◽  
Selective Genotyping ◽  
Doubled Haploid Population ◽  
Phenotypic Variance ◽  
Breeding Lines ◽  
A Genome ◽  
Tar Spot ◽  
Major Qtl

Abstract Tar spot complex (TSC) is a major foliar disease of maize in many Central and Latin American countries and leads to severe yield loss. To dissect the genetic architecture of TSC resistance, a genome-wide association study (GWAS) panel and a bi-parental doubled haploid population were used for GWAS and selective genotyping analysis, respectively. A total of 115 SNPs in bin 8.03 were detected by GWAS and three QTL in bins 6.05, 6.07, and 8.03 were detected by selective genotyping. The major QTL qRtsc8-1 located in bin 8.03 was detected by both analyses, it explained 14.97% of the phenotypic variance. To fine-map qRtsc8-1, the recombinant-derived progeny test was implemented. Recombinations in each generation were backcrossed, and the backcross progenies were genotyped with Kompetitive Allele Specific PCR (KASP) markers and phenotyped for TSC resistance individually. The significant tests for comparing the TSC resistance between the two classes of progenies with and without resistant alleles were used for fine-mapping. In BC5 generation, qRtsc8-1 was fine mapped in an interval of ~721 kb flanked by markers of KASP81160138 and KASP81881276. In this interval, the candidate genes GRMZM2G063511 and GRMZM2G073884 were identified, which encode an integral membrane protein-like and a leucine-rich repeat receptor-like protein kinase, respectively. Both genes are involved in maize disease resistance responses. Two production markers KASP81160138 and KASP81160155 were verified in 471 breeding lines. This study provides valuable information for cloning the resistance gene, it will also facilitate the routine implementation of marker-assisted selection in the breeding pipeline for improving TSC resistance.

scholarly journals Fine Mapping of a Major QTL Influencing Morphine Preference in C57BL/6 and DBA/2 Mice Using Congenic Strains

2008 ◽  
Vol 33 (12) ◽  
pp. 2801-2809 ◽  
Author(s):  
Glenn A Doyle ◽  
Patrick J Furlong ◽  
Candice L Schwebel ◽  
George G Smith ◽  
Falk W Lohoff ◽  
...  
Keyword(s):  
Fine Mapping ◽  
Congenic Strains ◽  
Major Qtl

scholarly journals Fine mapping of qBK1, a major QTL for bakanae disease resistance in rice

Rice ◽  
2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Sais-Beul Lee ◽  
Namgyu Kim ◽  
Yeon-Jae Hur ◽  
Su-Min Cho ◽  
Tae-Heon Kim ◽  
...  
Keyword(s):  
Disease Resistance ◽  
Fine Mapping ◽  
Bakanae Disease ◽  
Major Qtl

Fine Mapping a Major QTL for Root Morphology in Wheat

2010 ◽  
Vol 150 ◽  
pp. 113-114 ◽  
Author(s):  
Yongzhe Ren ◽  
Jingjuan Li ◽  
Xue He ◽  
Xueqiang Zhao ◽  
Bin Li ◽  
...  
Keyword(s):  
Fine Mapping ◽  
Root Morphology ◽  
Major Qtl

Fine mapping Fhb4, a major QTL conditioning resistance to Fusarium infection in bread wheat (Triticum aestivum L.)

2010 ◽  
Vol 121 (1) ◽  
pp. 147-156 ◽  
Author(s):  
Shulin Xue ◽  
Guoqiang Li ◽  
Haiyan Jia ◽  
Feng Xu ◽  
Feng Lin ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Bread Wheat ◽  
Fine Mapping ◽  
Triticum Aestivum L ◽  
Fusarium Infection ◽  
Major Qtl

scholarly journals Fine-mapping of a major QTL controlling angular leaf spot resistance in common bean (Phaseolus vulgaris L.)

2015 ◽  
Vol 128 (5) ◽  
pp. 813-826 ◽  
Author(s):  
Beat Keller ◽  
Chloe Manzanares ◽  
Carlos Jara ◽  
Juan David Lobaton ◽  
Bruno Studer ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Fine Mapping ◽  
Leaf Spot ◽  
Angular Leaf Spot ◽  
Phaseolus Vulgaris L ◽  
Major Qtl
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