Mapping of durable adult plant and seedling resistances to stripe rust and stem rust diseases in wheat

Bariana, H. S.; Hayden, Matthew; Ahmed, Nisar; Bell, J. A.; Sharp, P. J.; McIntosh, R. A.

doi:10.1071/ar01040

Cited by 119 publications

(80 citation statements)

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“…The loci on chro-mosome 3BS and 6BL had significant effect on stripe rust. The locus on the distal region of chromosome 1BL with highly significant effects had also detected in other mapping populations [34,41]. The distortion associated with chromosome 4B linkage map has also been observed in some other research reports [41].…”

Section: Genetic Basis Of Durable Resistancementioning

confidence: 63%

“…It has been indicated that durable rust resistance is more likely to be of adult plant type rather than seedling type and is not associated with the genes conferring hypersensitive reaction [34]. Durable rust resistance is a mechanism conferring resistance to a cultivar for long period of time during its widespread cultivation in a favorable environment for a disease [35].…”

Section: The Concept Of Durable Resistancementioning

confidence: 99%

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Status and strategies in breeding for rust resistance in wheat

Khan¹,

Bukhari²,

Dar³

et al. 2013

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Wheat along with rice and maize is fulfilling half of the calories demands of the world. Global Wheat production has increased tremendously since green revolution in 1960's and helped in minimizing hunger and malnutrition. Developing countries, which consume 60% of the global wheat production, have shown a higher yield increase than the developed countries in the past [1]. It was driven by the hunger prevalence in these countries and was attributable to the introduction of high yielding and rusted resistant semi dwarf varieties developed under the collaborative efforts of International and National research systems during the last 50 years. Whereas, climate change and the emergence of new pests and diseases are threatening the food sustainability. The evolution of new races of disease pathogens like stem rust (Ug 99) is of serious concern. In order to feed the ever increasing population we have to increase wheat production at the rate 1.6% which can be achieved by developing high yielding varieties having a good tolerance level for biotic and abiotic stresses.

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Section: Genetic Basis Of Durable Resistancementioning

confidence: 63%

Section: The Concept Of Durable Resistancementioning

confidence: 99%

Status and strategies in breeding for rust resistance in wheat

Khan¹,

Bukhari²,

Dar³

et al. 2013

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“…Cook and a derivative, cv. Sunco (Park et al 1992;Bariana et al 2001), contributing 13-19% of the phenotypic variance for stripe rust and 9-13% of the phenotypic variance for leaf rust resistance (Navabi et al 2005). A stripe rust resistance QTL was identified in the Italian cv.…”

Section: Discussionmentioning

confidence: 99%

Identification of adult plant resistance to stripe rust in the wheat cultivar Cappelle-Desprez

et al. 2012

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Following the appearance of stripe rust in South Africa in 1996, efforts have been made to identify new sources of durable resistance. The French cultivar Cappelle-Desprez has long been considered a source of durable, adult plant resistance (APR) to stripe rust. As Cappelle-Desprez contains the seedling resistance genes Yr3a and Yr4a, wheat lines were developed from which Yr3a and Yr4a had been removed, while selecting for Cappelle-Desprez derived APR effective against South African pathotypes of the stripe rust fungus, Puccinia striiformis f. sp. tritici. Line Yr16DH70, adapted to South African wheat growing conditions, was selected and crossed to the stripe rust susceptible cultivar Palmiet to develop a segregating recombinant inbred line mapping population. A major effect QTL, QYr.ufs-2A was identified on the short arm of chromosome 2A derived from Cappelle-Desprez, along with three QTL of smaller effect, QYr.ufs-2D, QYr.ufs-5B and QYr.ufs-6D. QYr.ufs-2D was located within a region on the short arm of chromosome 2D believed to be the location of the stripe rust resistance gene Yr16. An additional minor effect QTL, QYr.ufs-4B, was identified in the cv. Palmiet. An examination of individual RILs carrying single or combinations of each QTL indicated significant resistance effects when QYr.ufs-2A was combined with the three minor QTL from Cappelle-Desprez, and between QYr.ufs-2D and QYr.ufs-5B.

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“…The APR gene Yr29, from cultivar Lalbahadur, is located on 1B , whereas the recently designated Yr31 gene from Pastor, which is associated with minor APR genes in this cultivar , has been placed on 2BS. An APR gene (YrKat) in the cultivar Katepwa, and a temperature-sensitive, seedling-resistance gene (YrCk) in the cultivar Sunco, has been found on chromosome 2DS (Bariana et al 2001). Further, in the French cultivar Camp Remy, two QTLs for stripe rust APR have been located on chromosomes 2A and 2B (Boukhatem et al 2002).…”

Section: Introductionmentioning

confidence: 96%

“…Yr18 was mapped to chromosome 7D in a number of Communicated by P. Langridge V. P. Ramburan ( ) ) · R. Prins different wheat cultivars (Singh et al , 2001Bariana et al 2001;Boukhatem et al 2002). Yrns-B1 was mapped to 3BS in the German breeding line LGst.79-74 (Börner et al 2000), while Singh et al (2000) also located a stripe rust APR gene, now designated Yr30, on chromosome 3BS in the cultivar Opata 85.…”

Section: Introductionmentioning

confidence: 99%

A genetic analysis of adult plant resistance to stripe rust in the wheat cultivar Kariega

et al. 2004

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The wheat cultivar Kariega expresses complete adult plant resistance to stripe rust in South Africa. The aim of this investigation was to determine the extent and nature of variability in stripe rust resistance in a population of 150 doubled haploid lines generated from a cross between Kariega and the susceptible cultivar Avocet S. Analysis of field data for adult plant stripe rust resistance identified two major QTLs and two minor QTLs in the resistant cultivar Kariega. The two major QTLs were located on chromosomes 7D ( QYr.sgi-7D) and 2B ( QYr.sgi-2B.1), contributing 29% and 30% to the phenotypic variance, respectively. QYr.sgi-2B.1 is primarily associated with a chlorotic and/or necrotic response, unlike QYr.sgi-7D, which is believed to be the adult plant resistance gene Yr18. These two QTLs for adult plant resistance in Kariega appear to represent different forms of resistance, where QYr.sgi-7D may represent potentially more durable resistance than QYr.sgi-2B.1. Mixture model analysis of the field leaf infection scores suggested a genetic model involving two independent genes combining in a classical, epistatic manner. The results of the QTL analysis demonstrate its higher resolution power compared to the mixture model analysis by detecting the presence of minor QTLs.

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Mapping of durable adult plant and seedling resistances to stripe rust and stem rust diseases in wheat

Cited by 119 publications

References 0 publications

Status and strategies in breeding for rust resistance in wheat

Status and strategies in breeding for rust resistance in wheat

Identification of adult plant resistance to stripe rust in the wheat cultivar Cappelle-Desprez

A genetic analysis of adult plant resistance to stripe rust in the wheat cultivar Kariega

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