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Molecular mapping of QTL for Fusarium head blight resistance introgressed into durum wheat.
Theor Appl Genet. 2018 Sep; 131(9):1939-1951.TA

Abstract

KEY MESSAGE

The major QTL for FHB resistance from hexaploid wheat line PI 277012 was successfully introgressed into durum wheat and minor FHB resistance QTL were detected in local durum wheat cultivars. A combination of these QTL will enhance FHB resistance of durum wheat. Fusarium head blight (FHB), caused by Fusarium graminearum, is a devastating disease of durum wheat. To combat the disease, great efforts have been devoted to introgress FHB resistance from its related tetraploid and hexaploid wheat species into adapted durum cultivars. However, most of the quantitative trait loci (QTL) for FHB resistance existing in the introgression lines are not well characterized or validated. In this study, we aimed to identify and map FHB resistance QTL in a population consisting of 205 recombinant inbred lines from the cross between Joppa (a durum wheat cultivar) and 10Ae564 (a durum wheat introgression line with FHB resistance derived from the hexaploid wheat line PI 277012). One QTL (Qfhb.ndwp-2A) from Joppa and two QTL (Qfhb.ndwp-5A and Qfhb.ndwp-7A) from 10Ae564 were identified through phenotyping of the mapping population for FHB severity and DON content in greenhouse and field and genotyping with 90K wheat Infinium iSelect SNP arrays. Qfhb.ndwp-2A explained 14, 15, and 9% of the phenotypic variation, respectively, for FHB severity in two greenhouse experiments and for mean DON content across the two greenhouse environments. Qfhb.ndwp-5A explained 19, 10, and 7% of phenotypic variation, respectively, for FHB severity in one greenhouse experiment, mean FHB severity across two field experiments, and mean DON content across the two greenhouse experiments. Qfhb.ndwp-7A was only detected for FHB severity in the two greenhouse experiments, explaining 9 and 11% of the phenotypic variation, respectively. This study confirms the existence of minor QTL in North Dakota durum cultivars and the successful transfer of the major QTL from PI 277012 into durum wheat.

Authors+Show Affiliations

Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108-6050, USA.Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108-6050, USA.USDA-ARS, Cereal Crops Research Unit, Red River Valley Agricultural Research Center, Fargo, ND, 58102, USA.USDA-ARS, Cereal Crops Research Unit, Red River Valley Agricultural Research Center, Fargo, ND, 58102, USA.Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108-6050, USA. shaobin.zhong@ndus.edu.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29869075

Citation

Zhao, Mingxia, et al. "Molecular Mapping of QTL for Fusarium Head Blight Resistance Introgressed Into Durum Wheat." TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, vol. 131, no. 9, 2018, pp. 1939-1951.
Zhao M, Leng Y, Chao S, et al. Molecular mapping of QTL for Fusarium head blight resistance introgressed into durum wheat. Theor Appl Genet. 2018;131(9):1939-1951.
Zhao, M., Leng, Y., Chao, S., Xu, S. S., & Zhong, S. (2018). Molecular mapping of QTL for Fusarium head blight resistance introgressed into durum wheat. TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, 131(9), 1939-1951. https://doi.org/10.1007/s00122-018-3124-4
Zhao M, et al. Molecular Mapping of QTL for Fusarium Head Blight Resistance Introgressed Into Durum Wheat. Theor Appl Genet. 2018;131(9):1939-1951. PubMed PMID: 29869075.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Molecular mapping of QTL for Fusarium head blight resistance introgressed into durum wheat. AU - Zhao,Mingxia, AU - Leng,Yueqiang, AU - Chao,Shiaoman, AU - Xu,Steven S, AU - Zhong,Shaobin, Y1 - 2018/06/04/ PY - 2017/12/18/received PY - 2018/05/28/accepted PY - 2018/6/6/pubmed PY - 2018/8/23/medline PY - 2018/6/6/entrez SP - 1939 EP - 1951 JF - TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik JO - Theor Appl Genet VL - 131 IS - 9 N2 - KEY MESSAGE: The major QTL for FHB resistance from hexaploid wheat line PI 277012 was successfully introgressed into durum wheat and minor FHB resistance QTL were detected in local durum wheat cultivars. A combination of these QTL will enhance FHB resistance of durum wheat. Fusarium head blight (FHB), caused by Fusarium graminearum, is a devastating disease of durum wheat. To combat the disease, great efforts have been devoted to introgress FHB resistance from its related tetraploid and hexaploid wheat species into adapted durum cultivars. However, most of the quantitative trait loci (QTL) for FHB resistance existing in the introgression lines are not well characterized or validated. In this study, we aimed to identify and map FHB resistance QTL in a population consisting of 205 recombinant inbred lines from the cross between Joppa (a durum wheat cultivar) and 10Ae564 (a durum wheat introgression line with FHB resistance derived from the hexaploid wheat line PI 277012). One QTL (Qfhb.ndwp-2A) from Joppa and two QTL (Qfhb.ndwp-5A and Qfhb.ndwp-7A) from 10Ae564 were identified through phenotyping of the mapping population for FHB severity and DON content in greenhouse and field and genotyping with 90K wheat Infinium iSelect SNP arrays. Qfhb.ndwp-2A explained 14, 15, and 9% of the phenotypic variation, respectively, for FHB severity in two greenhouse experiments and for mean DON content across the two greenhouse environments. Qfhb.ndwp-5A explained 19, 10, and 7% of phenotypic variation, respectively, for FHB severity in one greenhouse experiment, mean FHB severity across two field experiments, and mean DON content across the two greenhouse experiments. Qfhb.ndwp-7A was only detected for FHB severity in the two greenhouse experiments, explaining 9 and 11% of the phenotypic variation, respectively. This study confirms the existence of minor QTL in North Dakota durum cultivars and the successful transfer of the major QTL from PI 277012 into durum wheat. SN - 1432-2242 UR - https://www.unboundmedicine.com/medline/citation/29869075/Molecular_mapping_of_QTL_for_Fusarium_head_blight_resistance_introgressed_into_durum_wheat_ L2 - https://dx.doi.org/10.1007/s00122-018-3124-4 DB - PRIME DP - Unbound Medicine ER -