Mapping of major Fusarium head blight resistance from Canadian wheat cv. AAC Tenacious
Mapping of major Fusarium head blight resistance from Canadian wheat cv. AAC Tenacious
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Full item details
- creativework.keywords - en
- QTL mapping
- doubled haploid
- disease resistance
- Fusarium head blight
- plant height
- epistasis (genetics)
- days to anthesis
- creativework.keywords - fr
- cartographie des loci quantitatifs
- double haploïdes
- résistance aux maladies
- maladie fusarium
- hauteur des plantes
- épistasie|
- dc.contributor.author
- Dhariwal, Raman
- Henriquez, Maria A.
- Hiebert, Colin
- McCartney, Curt A.
- Randhawa, Harpinder S.
- dc.date.accessioned
- 2023-04-14T18:30:01Z
- dc.date.available
- 2023-04-14T18:30:01Z
- dc.date.issued
- 2020-06-24
- dc.description.abstract - en
- Fusarium head blight (FHB) is one of the most devastating wheat disease due to its direct detrimental effects on grain-yield, quality and marketability. Resistant cultivars offer the most effective approach to manage FHB; however, the lack of different resistance resources is still a major bottleneck for wheat breeding programs. To identify and dissect FHB resistance, a doubled haploid wheat population produced from the Canadian spring wheat cvs AAC Innova and AAC Tenacious was phenotyped for FHB response variables incidence and severity, visual rating index (VRI), deoxynivalenol (DON) content, and agronomic traits days to anthesis (DTA) and plant height (PHT), followed by single nucleotide polymorphism (SNP) and simple sequence repeat (SSR) marker genotyping. A high-density map was constructed consisting of 10,328 markers, mapped on all 21 chromosomes with a map density of 0.35 cM/marker. Together, two major quantitative trait loci for FHB resistance were identified on chromosome 2D from AAC Tenacious; one of these loci on 2DS also colocated with loci for DTA and PHT. Another major locus for PHT, which cosegregates with locus for low DON, was also identified along with many minor and epistatic loci. QTL identified from AAC Tenacious may be useful to pyramid FHB resistance.
- dc.description.plainlanguage - en
- Fusarium head blight (FHB) is one of the most devastating wheat disease due to its direct detrimental effects on grain-yield, quality and marketability. Resistant cultivars offer the most effective approach to manage FHB; however, the lack of different resistance resources is still a major bottleneck for wheat breeding programs. A high-density genetic map was constructed consisting of DNA markers to identified markers that can be used for the selection and development of new FHB resistant variety.
- dc.description.plainlanguage - fr
- La fusariose de l’épi est l’une des maladies les plus dévastatrices du blé en raison de ses effets négatifs directs sur le rendement, la qualité et la valeur marchande des grains. Les cultivars résistants constituent l’approche la plus efficace pour lutter contre la fusariose de l’épi; toutefois, le manque de ressources pour la résistance aux différentes formes de résistance constitue toujours un goulot d’étranglement important pour les programmes d’amélioration du blé. Nous avons construit une carte génétique à haute densité comprenant des marqueurs d’ADN pouvant être utilisés pour la sélection et la mise au point de nouvelles variétés résistantes à la fusariose.
- dc.identifier.citation
- Dhariwal, R., Henriquez, M. A., Hiebert, C., McCartney, C. A., & Randhawa, H. S. (2020). Mapping of major Fusarium head blight resistance from Canadian wheat cv. AAC Tenacious. International Journal of Molecular Sciences, 21(12). https://doi.org/10.3390/ijms21124497
- dc.identifier.doi
- https://doi.org/10.3390/ijms21124497
- dc.identifier.issn
- 1422-0067
- dc.identifier.uri
- https://open-science.canada.ca/handle/123456789/174
- dc.language.iso
- en
- dc.publisher
- MDPI
- dc.rights.openaccesslevel - en
- Gold
- dc.rights.openaccesslevel - fr
- Or
- dc.subject - en
- Agriculture
- dc.subject - fr
- Agriculture
- dc.subject.en - en
- Agriculture
- dc.subject.fr - fr
- Agriculture
- dc.title - en
- Mapping of major Fusarium head blight resistance from Canadian wheat cv. AAC Tenacious
- dc.title.fosrctranslation - fr
- Mapping of major Fusarium head blight resistance from Canadian wheat cv. AAC Tenacious
- dc.type - en
- Article
- dc.type - fr
- Article
- local.article.journalissue
- 12
- local.article.journaltitle
- International Journal of Molecular Sciences
- local.article.journalvolume
- 21
- local.peerreview - en
- Yes
- local.peerreview - fr
- Oui
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