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Anther extrusion and its association with Fusarium head blight in CIMMYT wheat germplasm

Author: Kaijie Xu
Author: Xinyao He
Author: Dreisigacker, S.
Author: He, Zhonghu
Author: Singh, P.K.
Year: 2020
ISSN: 2073-4395 (Print)
URI: https://hdl.handle.net/10883/20654
Format: PDF
Language: English
Publisher: MDPI
Copyright: CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.
Type: Article
Place of Publication: Basel (Switzerland)
Issue: 1
Issue: art. 47
Volume: 10
DOI: 10.3390/agronomy10010047
Description: Pronounced anther extrusion (AE) is associated with field resistance to Fusarium head blight (FHB), one of the most devastating diseases of wheat globally. In this study, two recombinant inbred line (RIL) populations were used to map quantitative trait loci (QTL) for AE and field FHB resistance and to investigate the association of both traits at the genetic level. Furthermore, two panels of International Maize and Wheat Improvement Center (CIMMYT) wheat breeding lines were evaluated to describe the phenotypic association between the two traits in detail. Highly significant negative correlation was identified between AE and FHB severity in the two populations and the two panels, with r-values ranging from 0.55 to 0.74. QTL analysis in the two RIL populations identified 12 QTL for AE and nine for FHB resistance, of which five QTL located on chromosomes 3BL, 4BS, 4DS, 5AL, and 5BL were associated with both AE and FHB, collectively explaining over 50% of phenotypic variation for FHB. The QTL on chromosomes 4BS, 4DS, 5AL, and 5BL were closely linked to Rht-B1, Rht-D1, Vrn-A1, and Vrn-B1 genes, respectively. In conclusion, AE is closely related to field FHB resistance and could be used as a morphological marker in wheat breeding for field FHB resistance.
Agrovoc: WHEAT
Agrovoc: FUSARIUM
Agrovoc: ANTHERS
Agrovoc: HEIGHT
Agrovoc: HEADING
Notes: The dataset related with this article is only referential
Related Datasets: https://www.mdpi.com/2073-4395/10/1/47/s1
Journal: Agronomy


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  • Wheat
    Wheat - breeding, phytopathology, physiology, quality, biotech

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