A major QTL effect controlling resistance to powdery mildew in winter wheat at the adult plant stage

Bougot, Y.; Lemoine, Jocelyne; Pavoine, M.T.; Guyomarc'h, H; Gautier, Véronique; Muranty, Hélène; Barloy, Dominique

doi:10.1111/j.1439-0523.2006.01308.x

Cited by 54 publications

(26 citation statements)

References 42 publications

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“…It was calculated as 530/(N 9 R 2 ), where the constant 530 is derived from simulations of backcross and F 2 populations (Darvasi and Soller 1997), N is the population size and R 2 the proportion of variance explained by the QTL tauschii, namely PmY201 and PmY212. Moreover, it lies in a similar region as QPmVPn.inra-5D detected by Bougot et al (2006) at the vernalized seedling stage in the RE9001 9 'Courtôt' population (Table 5). We tried to compare the positions of minor QTL on chromosome 4B, 5A, 5B and 7A to the positions of the QTL for powdery mildew resistance described in other papers by projecting these QTL on the composite map by Appels (2003).…”

Section: Marker Order and Map Coveragementioning

confidence: 54%

“…1 or 4): consequently we can suppose that the two QTL QPm.inra-5D and QPm.inra-6A2 from RE714 do not provide an efficient powdery mildew resistance at the end of the wheat growing season. The markers linked to these QTL could be used to cumulate RE714 alleles at these QTL with RE9001 allele at the QPm.inra-2B QTL (Bougot et al 2006) which is efficient at the adult plant stage.…”

Section: Marker Order and Map Coveragementioning

confidence: 99%

“…During the past 10 years, several studies on the genetic control of APR to powdery mildew were carried out in several wheat lines, including the Swiss cultivar Forno , the US' cultivar Massey and its derivatives (Liu et al 2001;Tucker et al 2006), the spring variety Opata 85 and the synthetic wheat W7984 (Börner et al 2002), the French breeder lines RE714 (Chantret et al 2001;Mingeot et al 2002) and RE9001 (Bougot et al 2006), the Japanese cultivar Fukuho-komugi (Liang et al 2006), a T. militinae introgression line (Jakobson et al 2006) and the CYMMIT cultivar Saar (Lillemo et al 2008). In these studies, 3-18 QTL were identified, among which between one and three were consistent across environments.…”

Section: Introductionmentioning

confidence: 99%

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Estimation of genetic parameters and prediction of breeding values for apple fruit-quality traits using pedigreed plant material in Europe

Kouassi

Durel

Costa

et al. 2009

Tree Genetics & Genomes

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Powdery mildew (Blumeria graminis f. sp. tritici) is one of the major diseases of wheat (Triticum aestivum). Adult plant resistance (APR) to powdery mildew is considered more durable than resistance conferred by major race-specific resistance genes. The objective of the present study was a better understanding of the genetic basis of APR in RE714 by means of QTL analysis of several resistance scores along the growing season. A population of 160 recombinant inbred lines obtained from the cross between RE714 and Hardi (susceptible) was assessed for APR under natural infection conditions during 3 years and a genetic map with whole genome coverage was developed with microsatellite and AFLP markers in this population. Two major QTL on chromosomes 5D and 6A were detected each year, and 6 minor QTL were detected only in 1 or 2 years. The QTL on chromosome 5D was detected during all the growing season each year and its R 2 value varied between 8.5 and 56.3%, whereas the QTL on chromosome 6A was detected at 1-4 scoring dates in the 3 years, and its R 2 value varied between 6.1 and 20.5%. The two QTL explained between 24.4 and 52.1% of the phenotypic variance for AUDPC, depending on the year. The models including QTL and cofactors in the composite interval mapping explained between 29 and 72% of the variance. The molecular markers linked to the two major QTL could be used in marker-assisted selection for adult plant resistance to powdery mildew.

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Section: Marker Order and Map Coveragementioning

confidence: 54%

Section: Marker Order and Map Coveragementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Estimation of genetic parameters and prediction of breeding values for apple fruit-quality traits using pedigreed plant material in Europe

Kouassi

Durel

Costa

et al. 2009

Tree Genetics & Genomes

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“…Several major quantitative trait loci (QTL) for partial resistance have been identified in the North American winter wheats 'Massey' and 'USG3209' (Tucker et al 2007), the Swiss winter wheat 'Forno' (Keller et al 1999), the French winter wheats RE714 (Mingeot et al 2002;Chantret et al 2000) and RE9001 (Bougot et al 2006), the Japanese wheat 'Fukuho-komugi' (Liang et al 2006), in the CIMMYT spring wheats 'Opata 85', W7984 (Börner et al 2002) and Saar (Lillemo et al 2008), in the Chinese cultivars 'Lumai 21' (Lan et al 2010) and 'Bainong 64' (Lan et al 2009), and the Swedish winter wheat cultivar 'Folke' (Lillemo et al 2012). The QTL on 1BL, 2BL and 7DS were the most frequently detected.…”

Section: Introductionmentioning

confidence: 99%

Partial resistance to powdery mildew in German spring wheat ‘Naxos’ is based on multiple genes with stable effects in diverse environments

Bjørnstad

Ren

et al. 2012

Theor Appl Genet

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Powdery mildew is one of the most important wheat diseases in temperate regions of the world. Resistance breeding is considered to be an economical and environmentally benign way to control this disease. The German spring wheat cv. 'Naxos' exhibits high levels of partial and race non-specific resistance to powdery mildew in the field and is a valuable source in resistance breeding. The main objective of the present study was to map the genetic factors behind the resistance in Naxos, based on a population of recombinant inbred lines (RIL) from a cross with the susceptible CIMMYT breeding line SHA3/CBRD. Powdery mildew severity was evaluated in six field trials in Norway and four field trials in China. The major quantitative trait locus (QTL) with resistance from Naxos was detected close to the Pm3 locus on 1AS in all environments, and explained up to 35% of the phenotypic variation. Naxos was shown to carry another major QTL on 2DL and minor ones on 2BL and 7DS. QTL with resistance from SHA3/CBRD were detected on 1RS, 2DLc, 6BL and 7AL. The QTL on the 1B/1R translocation showed highly variable effects across environments corresponding to known virulence differences against Pm8. SHA3/CBRD was shown to possess the Pm3 haplotype on 1AS, but none of the known Pm3a-g alleles. The RIL population did not provide any evidence to suggest that the Pm3 allele of SHA3/CBRD acted as a suppressor of Pm8.

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“…QTL responsible for resistance level differ among themselves by phenotypical effect and response to different environments (Bougot et al, 2006;Tucker et al, 2007). There is still insufficient knowledge regarding the main genetic defence mechanism of European winter wheat cultivars and the underlying genes, polygenes or combinations of them.…”

Section: Introductionmentioning

confidence: 99%

Powdery Mildew Resistance of the Lithuanian Winter Wheat Breeding Material

Liatukas¹,

Ruzgas²

2009

Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences.

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Communicated by Îzaks RaðalsAt the Lithuanian Institute of Agriculture, during 2004Agriculture, during -2006 to powdery mildew of approximately 1,500 winter wheat lines was assessed in check and competitive trial nurseries. Our experimental evidence showed that there were no genotypes with effective resistance singlegenes among the lines tested. Effective powdery mildew resistance from start to end of vegetation season depended on the quantitative resistance level. The most resistant lines were evaluated with a score of 2 and area under the disease progress curve (AUDPC) values ranging between 1.0-5.4. The most susceptible genotypes from the collection nurseries had score 8-9 and AUDPC values ranging between 1350-2220. The correlations between maximal disease severity and AUDPC values were strong (r = 0.79-0.92). Genotypes with AUDPC values up to 10 represented 93 lines or 7% in the check trial nursery and 22 lines or 9% in the competitive trial nursery. Lines evaluated with a score 4-5 and AUDPC value 100-300 dominated in 2004.In the next year the dominant genotypes had resistance scores [3][4]. The highest powdery mildew resistance (score 2 and AUDPC value 1.0) was identified for the lines Maverich/Victo, Flair/Lut.9392, Strumok/Lut.9321, Strumok/Lut.9313 with natural infection. Resistance to powdery mildew of approximately 1,500 breeding lines of winter wheat from competitive trial (generations F7-10) (CTN) and check (generations F6-7) nurseries (CN) was investigated under natural infection. The majority of cultivars used as parental forms were from European counties, some from Russia, Ukraine, Kazakhstan and USA. Cultivars used for breeding possessed single gene resistance to powdery mildew, however, these genes were totally inefficient (Anonymous, 2003;2006;Liatukas and Ruzgas, 2004;Wang et al., 2005 soil. N 90 P 60 K 60 was applied annually. Phosphorus and potassium fertilizers were applied before sowing and nitrogen in spring after resumption of vegetative growth. Plots were sprayed with herbicides in spring when weeds started to grow intensively. Other pesticides and additional fertilization were not applied.Diseases were assessed from stem elongation (BBCH 30-31) to late milk development (BBCH 77). Resistance to diseases was measured using a 1-9 scale: score 1 no visible symptoms of diseases, score 9 plants heavily infected (infection ≥ 80%). The highest disease severity was used as the disease index (DI).The area under the disease progress curve (AUDPC) from plots of disease severity against time, from the first scoring to the last.where "t" is time in days, "y" is the percentage of affected foliage at each reading and "n" is the number of readings (Campbell and Madden, 1990). Figure 1 shows the level of partial resistance in winter wheat breeding lines. The most resistant lines with AUDPC value not exceeding 10 had the disease index 2; the most susceptible ones had score 9 and AUDPC value over 1000. The next year lines were more resistant. Lines from CN had DI from 2 to 3 and AUDPC ranging from 3...

show abstract

A major QTL effect controlling resistance to powdery mildew in winter wheat at the adult plant stage

Cited by 54 publications

References 42 publications

Estimation of genetic parameters and prediction of breeding values for apple fruit-quality traits using pedigreed plant material in Europe

Estimation of genetic parameters and prediction of breeding values for apple fruit-quality traits using pedigreed plant material in Europe

Partial resistance to powdery mildew in German spring wheat ‘Naxos’ is based on multiple genes with stable effects in diverse environments

Powdery Mildew Resistance of the Lithuanian Winter Wheat Breeding Material

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