Genetic analysis revealed a quantitative trait loci (QTL2A.K) on short arm of chromosome 2A associated with yellow rust resistance in wheat (Triticum aestivum L.)

2020 ◽  
Vol 80 (03) ◽  
Author(s):  
Prashant Vikram ◽  
Cynthia Ortiz ◽  
S. Singh ◽  
Sukhwinder Singh
Keyword(s):  
Rust Resistance ◽  
Puccinia Striiformis ◽  
Yellow Rust ◽  
Wheat Chromosome ◽  
Triticum Aestivum L ◽  
Major Effect ◽  
Phenotypic Variance ◽  
Wheat Varieties ◽  
Yellow Rust Resistance ◽  
Genomic Regions

Yellow rust, caused by Puccinia striiformis, is one of the most devastating diseases in wheat. A synthetic by elite recombinant inbred line (RIL) population derived from a cross, Botnol/Aegilops squarrosa (666)//Kachu was evaluated for yellow rust resistance in two different environments in Mexico. The population was subjected to DArT-seq analysis for an in-depth genetic characterization. A major effect rust resistance QTL (QTL2A.K) explaining up to 45% phenotypic variance was found to be contributed by Kachee, an elite line of International Maize and Wheat Improvement Center (CIMMYT) Mexico. The QTL2A.K was found to be contributed by a segment of 2NS Chromosome of Triticum ventricosum translocated into the short arm of bread wheat chromosome 2A (QTL2A.K). The position of QTL2A.K was confirmed using T. ventricosum specific primer VENTRIUP-LN2. Identified genomic regions are being introgressed in to the popular but susceptible wheat varieties through marker-assisted breeding for enhancing yellow rust resistance.

scholarly journals Identification of an AFLP marker linked with yellow rust resistance in wheat (Triticum aestivum L.)

2014 ◽  
Vol 38 ◽  
pp. 371-379 ◽  
Author(s):  
Handan BALTA ◽  
Özge KARAKAŞ METİN ◽  
Funda ŞENTÜRK AKFIRAT ◽  
Fahriye ERTUĞRUL ◽  
Semra HASANÇEBİ ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Rust Resistance ◽  
Aflp Marker ◽  
Yellow Rust ◽  
Triticum Aestivum L ◽  
Yellow Rust Resistance

Chromosomal location of genomic SSR markers associated with yellow rust resistance in Turkish bread wheat (Triticum aestivum L.)

2013 ◽  
Vol 92 (2) ◽  
pp. 233-240 ◽  
Author(s):  
F. SENTURK AKFIRAT ◽  
F. ERTUGRUL ◽  
S. HASANCEBI ◽  
Y. AYDIN ◽  
K. AKAN ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Bread Wheat ◽  
Ssr Markers ◽  
Rust Resistance ◽  
Chromosomal Location ◽  
Yellow Rust ◽  
Triticum Aestivum L ◽  
Genomic Ssr ◽  
Yellow Rust Resistance

scholarly journals Molecular analysis of YR genes for yellow rust resistance in bread wheat (Triticum aestivum L. Em Thell)

2019 ◽  
Vol 48 (4) ◽  
pp. 1199-1206
Author(s):  
Pooja ◽  
SS Dhanda ◽  
NR Yadav
Keyword(s):  
Bread Wheat ◽  
Ssr Markers ◽  
Recombinant Inbred ◽  
Rust Resistance ◽  
Yellow Rust ◽  
Recombinant Inbred Lines ◽  
Triticum Aestivum L ◽  
Inbred Lines ◽  
Yellow Rust Resistance ◽  
Yr Genes

Investigation was conducted to evaluate 210 recombinant inbred lines (RILs) of bread wheat to identify Yr genes using SSR markers and response to stripe rust reaction. Recombinant inbred lines were screened under epiphytotic conditions and data in terms of per cent leaf area infected were recorded using Modified Cobb’s Scale. A total of seven Yr genes, namely Yr7, Yr18, Yr26, Yr29, Yr36, Yr47 and Yr53 were found to be linked to yellow rust resistance. Out of 40 Yr specific SSR markers, seven (Xgwm130 (Yr7), Xbarc 352 (Yr18), Xgwm 11 (Yr26), Xwmc 44 (Yr29), Xwmc 149 (Yr53), WKS1_I (Yr36) and Xcfb309 (Yr47) were found to be polymorphic in parental genotypes and RIL population indicating the presence or absence of Yr genes. Three RILs namely, 51, 52, 55 had largest number of resistant genes (4Yr genes) followed by six lines namely, RIL No. 20, 21, 23, 29, 39, 53 had 3Yr genes having disease score (0S). These RILs may be utilized for incorporation of specific Yr genes in well adapted genotypes for improvement of disease resistance in bread wheat.

scholarly journals Resistance to rusts in Bangladeshi wheat (Triticum aestivum L.)

2011 ◽  
Vol 47 (Special Issue) ◽  
pp. S155-S159 ◽  
Author(s):  
P.K. Malaker ◽  
M.M.A. Reza
Keyword(s):  
Stem Rust ◽  
Rust Resistance ◽  
Yellow Rust ◽  
Puccinia Triticina ◽  
Triticum Aestivum L ◽  
Adult Plant ◽  
Wheat Varieties ◽  
Breeding Lines ◽  
Slow Rusting ◽  
Resistant Lines

Leaf rust caused by Puccinia triticina is the most important disease among the three rusts of wheat in Bangladesh. The disease occurs in all wheat growing areas of the country with varying degrees of severity. Stem rust caused by P. graminis f.sp. tritici was last observed during the mid 1980s, while yellow rust caused by P. striiformis f.sp. tritici occurs occasionally in the north-western region, where a relatively cooler climate prevails during the winter months. None of the rusts has yet reached an epidemic level, but damaging epidemics may occur in future, particularly if a virulent race develops or is introduced. The genes conferring rust resistance in the breeding lines and wheat varieties released in Bangladesh were investigated at CIMMYT-Mexico and DWR-India. The resistance genes Lr1, Lr3, Lr10, Lr13, Lr23 and Lr26, Sr2, Sr5, Sr7b, Sr8b, Sr9b, Sr11 and Sr31; and Yr2KS and Yr9 were found. An adult plant slow rusting resistance gene Lr34 was also identified in some of the breeding lines and varieties based on the presence of clear leaf tip necrosis under field conditions. Considering the possible risk of migration of the devastating Ug99 race of stem rust into the Indo-Pak subcontinent, the Bangladeshi wheat lines and cultivars are being regularly sent to KARI in Kenya for testing their resistance against this race. The resistant lines have been included in multi-location yield trials and multiplied for future use in order to mitigate the threat of Ug99. The resistant lines have also been included in crossing schemes to develop genetic diversity of rust resistance.

Clustering of SSR markers located on 2AL for yellow rust resistance in hexaploid wheat (Triticum aestivum L.)

2012 ◽  
Vol 29 ◽  
pp. S179
Author(s):  
Funda Senturk Akfirat ◽  
Fahriye Ertugrul ◽  
Mehmet Cakir ◽  
Semra Hasancebi ◽  
Yildiz Aydin ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Ssr Markers ◽  
Hexaploid Wheat ◽  
Rust Resistance ◽  
Yellow Rust ◽  
Triticum Aestivum L ◽  
Yellow Rust Resistance
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