Quantitative trait loci mapping of adult-plant resistance to powdery mildew in Chinese wheat cultivar Lumai 21

2010 ◽  
Vol 25 (4) ◽  
pp. 615-622 ◽  
Author(s):  
Caixia Lan ◽  
Xiaowen Ni ◽  
Jun Yan ◽  
Yong Zhang ◽  
Xianchun Xia ◽  
...  
Keyword(s):  
Quantitative Trait Loci ◽  
Powdery Mildew ◽  
Plant Resistance ◽  
Quantitative Trait ◽  
Adult Plant Resistance ◽  
Wheat Cultivar ◽  
Adult Plant ◽  
Quantitative Trait Loci Mapping ◽  
Chinese Wheat Cultivar ◽  
Chinese Wheat

Molecular mapping of quantitative trait loci for adult-plant resistance to powdery mildew in Italian wheat cultivar Libellula

2012 ◽  
Vol 63 (6) ◽  
pp. 539 ◽  
Author(s):  
M. A. Asad ◽  
B. Bai ◽  
C. X. Lan ◽  
J. Yan ◽  
X. C. Xia ◽  
...  
Keyword(s):  
Quantitative Trait Loci ◽  
Powdery Mildew ◽  
Stripe Rust ◽  
Plant Resistance ◽  
Quantitative Trait ◽  
Rust Resistance ◽  
Adult Plant Resistance ◽  
Wheat Cultivar ◽  
Stripe Rust Resistance ◽  
Adult Plant

Powdery mildew, caused by Blumeria graminis f. sp. tritici (Bgt), is a fungal disease that causes significant yield losses in many wheat-growing regions of the world. Previously, five quantitative trait loci (QTLs) for adult-plant resistance (APR) to stripe rust resistance were identified in Italian wheat cultivar Libellula. The objectives of this study were to map QTLs for APR to powdery mildew in 244 F2 : 3 lines of Libellula/Huixianhong, to analyse the stability of detected QTLs across environments, and to assess the association of these QTLs with stripe rust resistance. Powdery mildew response was evaluated for 2 years in Beijing and for 1 year in Anyang. The correlation between averaged maximum disease severity (MDS) and averaged area under disease progress curve (AUDPC) over 2 years in Beijing was 0.98, and heritabilities of MDS and AUDPC were 0.65 and 0.81, respectively, based on the mean values averaged across environments. SSR markers were used to screen the parents and mapping population. Five QTLs were identified by inclusive composite interval mapping, designated as QPm.caas-2DS, QPm.caas-4BL.1, QPm.caas-6BL.1, QPm.caas-6BL.2, and QPm.caas-7DS. Three QTLs (QPm.caas-2DS and QPm.caas-6BL.1, and QPm.caas-6BL.2) seem to be new resistance loci for powdery mildew. QTLs QPm.caas-2DS and QPm.caas-4BL.1 were identified at the same position as previously mapped QTLs for stripe rust resistance in Libellula. The QTL QPm.caas-7DS, derived from Libellula, coincided with the slow rusting and slow mildewing locus Lr34/Yr18/Pm38. These results and the identified markers could be useful for wheat breeders aiming for durable resistance to both powdery mildew and stripe rust.

Quantitative trait loci mapping of adult‐plant resistance to powdery mildew in triticale

2020 ◽  
Vol 177 (2) ◽  
pp. 223-231
Author(s):  
Małgorzata Karbarz ◽  
Mirosław Tyrka ◽  
Anna Woźniak‐Strzembicka ◽  
Grzegorz Czajowski ◽  
Agnieszka Wardyńska ◽  
...  
Keyword(s):  
Quantitative Trait Loci ◽  
Powdery Mildew ◽  
Plant Resistance ◽  
Quantitative Trait ◽  
Adult Plant Resistance ◽  
Adult Plant ◽  
Quantitative Trait Loci Mapping ◽  
Trait Loci

scholarly journals Quantitative Trait Loci Mapping for Adult-Plant Resistance to Powdery Mildew in Bread Wheat

2006 ◽  
Vol 96 (7) ◽  
pp. 784-789 ◽  
Author(s):  
S. S. Liang ◽  
K. Suenaga ◽  
Z. H. He ◽  
Z. L. Wang ◽  
H. Y. Liu ◽  
...  
Keyword(s):  
Quantitative Trait Loci ◽  
Powdery Mildew ◽  
Plant Resistance ◽  
Quantitative Trait ◽  
Powdery Mildew Resistance ◽  
Adult Plant Resistance ◽  
Adult Plant ◽  
Phenotypic Variance ◽  
Mildew Resistance ◽  
Trait Loci

Powdery mildew, caused by Blumeria graminis f. sp. tritici, is a major disease to wheat (Triticum aestivum) worldwide. Use of adult-plant resistance (APR) is an effective method to develop wheat cultivars with durable resistance to powdery mildew. In the present study, 432 molecular markers were used to map quantitative trait loci (QTL) for APR to powdery mildew in a doubled haploid (DH) population with 107 lines derived from the cross Fukuho-komugi × Oligoculm. Field trials were conducted in Beijing and Anyang, China during 2003-2004 and 2004-2005 cropping seasons, respectively. The DH lines were planted in a randomized complete block design with three replicates. Artificial inoculation was carried out in Beijing with highly virulent isolate E20 of B. graminis f. sp. tritici and the powdery mildew severity on penultimate leaf was evaluated four times, and the maximum disease severity (MDS) on penultimate leaf was investigated in Anyang under natural inoculation in May 2004 and 2005. The heritability of resistance to powdery mildew for MDS in 2 years and two locations ranged from 0.82 to 0.93, while the heritability for area under the disease progress curve was between 0.84 and 0.91. With the method of composite interval mapping, four QTL for APR to powdery mildew were detected on chromosomes 1AS, 2BL, 4BL, and 7DS, explaining 5.7 to 26.6% of the phenotypic variance. Three QTL on chromosomes 1AS, 2BL, and 7DS were derived from the female, Fukuho-komugi, while the one on chromosome 4BL was from the male, Oligoculm. The QTL on chromosome 1AS showed high genetic effect on powdery mildew resistance, accounting for 19.5 to 26.6% of phenotypic variance across two environments. The QTL on 7DS associated with the locus Lr34/Yr18, flanked by microsatellite Xgwm295.1 and Ltn (leaf tip necrosis). These results will benefit for improving powdery mildew resistance in wheat breeding programs.

Quantitative trait loci mapping of adult-plant resistance to leaf rust in a Fundulea 900 × ‘Thatcher’ wheat cross

2016 ◽  
Vol 136 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Peipei Zhang ◽  
Aiyong Qi ◽  
Yue Zhou ◽  
Xianchun Xia ◽  
Zhonghu He ◽  
...  
Keyword(s):  
Quantitative Trait Loci ◽  
Leaf Rust ◽  
Plant Resistance ◽  
Quantitative Trait ◽  
Adult Plant Resistance ◽  
Adult Plant ◽  
Quantitative Trait Loci Mapping ◽  
Trait Loci ◽  
Wheat Cross

scholarly journals Molecular Mapping and Analysis of an Excellent Quantitative Trait Loci Conferring Adult-Plant Resistance to Stripe Rust in Chinese Wheat Landrace Gaoxianguangtoumai

2021 ◽  
Vol 12 ◽  
Author(s):  
Yuqi Wang ◽  
Fengying Liang ◽  
Fangnian Guan ◽  
Fangjie Yao ◽  
Li Long ◽  
...  
Keyword(s):  
Quantitative Trait Loci ◽  
Stripe Rust ◽  
Plant Resistance ◽  
Quantitative Trait ◽  
Adult Plant Resistance ◽  
Puccinia Striiformis ◽  
Adult Plant ◽  
Wheat Landrace ◽  
Trait Loci ◽  
Chinese Wheat

The Chinese wheat landrace “Gaoxianguangtoumai” (GX) has exhibited a high level of adult-plant resistance (APR) to stripe rust in the field for more than a decade. To reveal the genetic background for APR to stripe rust in GX, a set of 249 F6:8 (F6, F7, and F8) recombinant inbred lines (RILs) was developed from a cross between GX and the susceptible cultivar “Taichung 29.” The parents and RILs were evaluated for disease severity at the adult-plant stage in the field by artificial inoculation with the currently predominant Chinese Puccinia striiformis f. sp. tritici races during three cropping seasons and genotyped using the Wheat 55K single-nucleotide polymorphism (SNP) array to construct a genetic map with 1,871 SNP markers finally. Two stable APR quantitative trait loci (QTL), QYr.GX-2AS and QYr.GX-7DS in GX, were detected on chromosomes 2AS and 7DS, which explained 15.5–27.0% and 11.5–13.5% of the total phenotypic variation, respectively. Compared with published Yr genes and QTL, QYr.GX-7DS and Yr18 may be the same, whereas QYr.GX-2AS is likely to be novel. Haplotype analysis revealed that QYr.GX-2AS is likely to be rare which presents in 5.3% of the 325 surveyed Chinese wheat landraces. By analyzing a heterogeneous inbred family (HIF) population from a residual heterozygous plant in an F8 generation of RIL, QYr.GX-2AS was further flanked by KP2A_36.85 and KP2A_38.22 with a physical distance of about 1.37Mb and co-segregated with the KP2A_37.09. Furthermore, three tightly linked Kompetitive allele-specific PCR (KASP) markers were highly polymorphic among 109 Chinese wheat cultivars. The results of this study can be used in wheat breeding for improving resistance to stripe rust.

scholarly journals Mapping of Quantitative Trait Loci for Adult Plant Resistance to Stripe Rust in German Wheat Cultivar Ibis

2012 ◽  
Vol 11 (4) ◽  
pp. 528-536 ◽  
Author(s):  
Bin BAI ◽  
Yan REN ◽  
Xian-chun XIA ◽  
Jiu-yuan DU ◽  
Gang ZHOU ◽  
...  
Keyword(s):  
Quantitative Trait Loci ◽  
Stripe Rust ◽  
Plant Resistance ◽  
Quantitative Trait ◽  
Adult Plant Resistance ◽  
Wheat Cultivar ◽  
Adult Plant ◽  
Trait Loci

scholarly journals QTL Mapping of Adult-Plant Resistance to Stripe Rust in Chinese Wheat Cultivar Chuanyu 16

2011 ◽  
Vol 4 (3) ◽  
Author(s):  
Youliang Zheng ◽  
Ling Wu ◽  
Xianchun Xia ◽  
Yunliang Peng ◽  
Huazhong Zhu ◽  
...  
Keyword(s):  
Qtl Mapping ◽  
Stripe Rust ◽  
Plant Resistance ◽  
Adult Plant Resistance ◽  
Wheat Cultivar ◽  
Adult Plant ◽  
Chinese Wheat Cultivar ◽  
Chinese Wheat

Confirmation of Three Quantitative Trait Loci Conferring Adult Plant Resistance to Powdery Mildew in Two Winter Wheat Populations

Euphytica ◽  
2006 ◽  
Vol 155 (1-2) ◽  
pp. 1-13 ◽  
Author(s):  
D. M. Tucker ◽  
C. A. Griffey ◽  
S. Liu ◽  
G. Brown-Guedira ◽  
D. S. Marshall ◽  
...  
Keyword(s):  
Quantitative Trait Loci ◽  
Powdery Mildew ◽  
Winter Wheat ◽  
Plant Resistance ◽  
Quantitative Trait ◽  
Adult Plant Resistance ◽  
Adult Plant ◽  
Trait Loci
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