Characterization of Yr54 and other genes associated with adult plant resistance to yellow rust and leaf rust in common wheat Quaiu 3

Basnet, Bhoja R.; Singh, Ravi P.; Ibrahim, Amir M. H.; Herrera-Foessel, Sybil A.; Espino, Julio Huerta; Lan, Caixia; Rudd, Jackie C.

doi:10.1007/s11032-013-9957-2

Cited by 100 publications

(67 citation statements)

References 73 publications

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“…Therefore, it is highly likely that this locus is potentially a new locus. Similarly, the locus on 2DL at 164.6 cM, which was recognized to belong to QTL cluster QRYr2D.2 of Rosewarne et al (2013), was suspected to be APR gene Yr54 (Basnet et al, 2015). We used Yr54 gene-linked SSR marker to determine whether the two loci (M1550 and Yr54 ) are same or not.…”

Section: Discussionmentioning

confidence: 99%

Mining Centuries Old In situ Conserved Turkish Wheat Landraces for Grain Yield and Stripe Rust Resistance Genes

et al. 2016

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Wheat landraces in Turkey are an important genetic resource for wheat improvement. An exhaustive 5-year (2009–2014) effort made by the International Winter Wheat Improvement Programme (IWWIP), a cooperative program between the Ministry of Food, Agriculture and Livestock of Turkey, the International Center for Maize and Wheat Improvement (CIMMYT) and the International Center for Agricultural Research in the Dry Areas (ICARDA), led to the collection and documentation of around 2000 landrace populations from 55 provinces throughout Turkey. This study reports the genetic characterization of a subset of bread wheat landraces collected in 2010 from 11 diverse provinces using genotyping-by-sequencing (GBS) technology. The potential of this collection to identify loci determining grain yield and stripe rust resistance via genome-wide association (GWA) analysis was explored. A high genetic diversity (diversity index = 0.260) and a moderate population structure based on highly inherited spike traits was revealed in the panel. The linkage disequilibrium decayed at 10 cM across the whole genome and was slower as compared to other landrace collections. In addition to previously reported QTL, GWA analysis also identified new candidate genomic regions for stripe rust resistance, grain yield, and spike productivity components. New candidate genomic regions reflect the potential of this landrace collection to further increase genetic diversity in elite germplasm.

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Section: Discussionmentioning

confidence: 99%

Mining Centuries Old In situ Conserved Turkish Wheat Landraces for Grain Yield and Stripe Rust Resistance Genes

et al. 2016

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“…Recent investigation by Beddow et al (2015) has indicated that YR is one of the deadliest threats to global wheat production as the pathogen continues to rapidly evolve and spread across globe making nearly 88% of world's wheat susceptible and causing an estimated loss of 5.47 million tons of wheat grains annually. Recent YR epidemics across different continents have been mainly observed due to rapid adaptation of pathogen to newer geographical regions and relatively higher temperature, and due to rapid breakdown of widely deployed major genes (ICARDA, 2011; Basnet et al, 2014). The wheat LR, caused by Puccinia triticina ( Pt ), is also one of the most widely distributed diseases of wheat in the world, and can cause yield losses of up to 40% in susceptible cultivars by decreasing kernel number per spike and kernel weight (Khan et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Identification of Genomic Associations for Adult Plant Resistance in the Background of Popular South Asian Wheat Cultivar, PBW343

Singh

Bhavani

et al. 2016

Front. Plant Sci.

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Rusts, a fungal disease as old as its host plant wheat, has caused havoc for over 8000 years. As the rust pathogens can evolve into new virulent races which quickly defeat the resistance that primarily rely on race specificity, adult plant resistance (APR) has often been found to be race non-specific and hence is considered to be a more reliable and durable strategy to combat this malady. Over decades sets of donor lines have been identified at International Maize and Wheat Improvement Center (CIMMYT) representing a wide range of APR sources in wheat. In this study, using nine donors and a common parent “PBW343,” a popular Green Revolution variety at CIMMYT, the nested association mapping (NAM) population of 1122 lines was constructed to understand the APR genetics underlying these founder lines. Thirty-four QTL were associated with APR to rusts, and 20 of 34 QTL had pleiotropic effects on SR, YR and LR resistance. Three chromosomal regions, associated with known APR genes (Sr58/Yr29/Lr46, Sr2/Yr30/Lr27, and Sr57/Yr18/Lr34), were also identified, and 13 previously reported QTL regions were validated. Of the 18 QTL first detected in this study, 7 were pleiotropic QTL, distributing on chromosomes 3A, 3B, 6B, 3D, and 6D. The present investigation revealed the genetic relationship of historical APR donor lines, the novel knowledge on APR, as well as the new analytical methodologies to facilitate the applications of NAM design in crop genetics. Results shown in this study will aid the parental selection for hybridization in wheat breeding, and envision the future rust management breeding for addressing potential threat to wheat production and food security.

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“…In addition to Lr42, they also suggested that Quiau 3 carries two APR genes, Yr29 and Yr30, based on closely linked molecular markers. However, these known genes alone were not able to display near immune resistance to both LR and YR as in resistant parent Quaiu 3 (Basnet et al, 2014).…”

Section: Issn: 2319-7706 Volume 6 Number 6 (2017) Pp 21-32mentioning

confidence: 90%

Advanced Breeding Strategies to Mitigate the Threat of Yellow Stripe Rust of Wheat

Sheikh¹,

Dar²,

Sofi³

et al. 2017

Int.J.Curr.Microbiol.App.Sci

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Characterization of Yr54 and other genes associated with adult plant resistance to yellow rust and leaf rust in common wheat Quaiu 3

Cited by 100 publications

References 73 publications

Mining Centuries Old In situ Conserved Turkish Wheat Landraces for Grain Yield and Stripe Rust Resistance Genes

Mining Centuries Old In situ Conserved Turkish Wheat Landraces for Grain Yield and Stripe Rust Resistance Genes

Identification of Genomic Associations for Adult Plant Resistance in the Background of Popular South Asian Wheat Cultivar, PBW343

Advanced Breeding Strategies to Mitigate the Threat of Yellow Stripe Rust of Wheat

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