Genetic analysis of Soil-Borne Cereal Mosaic Virus response in durum wheat: evidence for the role of the major quantitative trait locus QSbm.ubo-2BS and of minor quantitative trait loci

Rye production in European growing areas is constrained by the soilborne cereal mosaic virus (SBCMV) and the wheat spindle streak mosaic virus (WSSMV). To date, no European rye cultivars are known to exhibit resistance against these viruses. In this study, we pursued a quantitative trait locus (QTL) mapping strategy to identify genomic regions for resistance to SBCMV and WSSMV in rye. Three populations, each comprising 100 lines segregating for resistance to SBCMV and/or WSSMV, were evaluated for disease response at two years in three locations in Germany where soils are naturally infested with SBCMV and WSSMV. In the combined analysis across environments, one QTL for SBCMV resistance on chromosome 5R explained 31.9% of the phenotypic variation in one of the populations. For WSSMV resistance, one QTL explaining up to 64.0% of the phenotypic variation was detected on chromosome 7R in each of the three populations. On the Triticeae homoeologous group 5, we found evidence for synteny of the major QTL for SBCMV resistance between the wheat and rye genomes.

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“…, Maccaferri et al. ,b). For SSR marker analyses, 149 primer combinations (SCM markers: Hackauf and Wehling (), Hackauf et al.…”

Section: Methodsunclassified

“…In durum wheat, a major QTL was detected on chromosome 2BS, which corresponds to the genomic region of Sbm2 together with additional minor QTL located on several other chromosomes (Maccaferri et al. ,b, Russo et al. ).…”

mentioning

confidence: 99%

Oligogenic control of resistance to soil‐borne viruses SBCMV and WSSMV in rye (Secale cereale L.)

et al. 2016

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“…Kofa and Svevo (Table 1) conditions . The Simeto/Levante population was developed by single seed descent (SSD) up to the F5 generation in the greenhouse and subsequently, a single spike from each F6 family was harvested and sown in the field as single spike/row progeny to produce F7 RIL foundation seed and DNA for the molecular analysis (Maccaferri et al 2012). The…”

Section: Plant Materials and Zymoseptoria Tritici Isolatesmentioning

confidence: 99%

“…Up to 13,823 SNPs were informative in a durum wheat panel and were genetically ordered based on a SNP consensus map (Maccaferri et al 2012;Maccaferri et al 2015;Maccaferri et al 2008) (Table1). QTL analyses were computed based on the BLUEs of the AUDPC of NEC (=Naudpc) and of the relative PYC AUDPC square root (=Paudpc), hereafter referred as N and P, respectively, and analyses were performed using the MapQTL® 6.0 software (Van Ooijen Resistance to STB in elite durum wheat 173…”

Section: Qtl Analysismentioning

confidence: 99%

Durum wheat and septoria tritici blotch: genes and prospects for breeding

Aouini

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“…8). A previous genetic map (Maccaferri et al 2012) showed a large distance between wPt-5949 and Xbarc222, which was reported to be associated with a QTL for PHS/seed dormancy on 7A (Singh et al 2010). Therefore, it is highly likely that Qsd.sau-7A is a newly discovered QTL for seed dormancy in wheat, as it stably explained 9.9-11.0 % of the phenotypic variation from the early to end stage of post-ripening (Table 3) and may also be associated with deep seed dormancy in Q1028, similarly to Qsd.sau-1B and Qsd.sau-4A2.…”

Section: Duration Of the Effects Of Qtlsmentioning

confidence: 99%

Quantitative trait locus mapping for seed dormancy in different post-ripening stages in a Tibetan semi-wild wheat (Triticum aestivum ssp. tibetanum Shao)

et al. 2014

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Tibetan semi-wild wheat (Triticum aestivum ssp. tibetanum Shao) is a hexaploid wheat resource distributed only in Tibet that has an interesting type of seed dormancy in addition to hulled glumes and brittle spikelets. A whole-genome linkage map of T. aestivum ssp. tibetanum was constructed for a population of 186 recombinant inbred lines using 645 diversity array technology (DArT) markers, 127 simple sequence repeat markers and three R-1 genotyping markers. Seed dormancy was evaluated at five postripening stages from 2010 to 2013. Comprehensive quantitative trait locus (QTL) mapping by inclusive composite interval mapping analysis identified seven QTLs for seed dormancy, designated as Qsd.sau-1B, Qsd.sau-3A, Qsd.sau-3B, Qsd.sau-3D, Qsd.sau-4A1, Qsd.sau-4A2, and Qsd.sau-7A, on chromosomes 1BL, 3AL, 3BL, 3DL, 4AS, 4AL, and 7AL, which explained 8.9, 7.2, 10.8, 7.0, 11.4, 9.4, and 12.7 % of phenotypic variation, respectively. Qsd.sau-4A1 and Qsd.sau-7A have only rarely been reported in domesticated common wheat but were prominent in T. aestivum ssp. tibetanum accession Q1028. Qsd.sau-4A1 was associated with intense, short-duration dormancy and was recognized as an ideal QTL for wheat breeding.

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Genetic analysis of Soil-Borne Cereal Mosaic Virus response in durum wheat: evidence for the role of the major quantitative trait locus QSbm.ubo-2BS and of minor quantitative trait loci

Cited by 13 publications

References 36 publications

Oligogenic control of resistance to soil‐borne viruses SBCMV and WSSMV in rye (Secale cereale L.)

Oligogenic control of resistance to soil‐borne viruses SBCMV and WSSMV in rye (Secale cereale L.)

Durum wheat and septoria tritici blotch: genes and prospects for breeding

Quantitative trait locus mapping for seed dormancy in different post-ripening stages in a Tibetan semi-wild wheat (Triticum aestivum ssp. tibetanum Shao)

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