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Identification, High-Density Mapping, and Characterization of New Major Powdery Mildew Resistance Loci From the Emmer Wheat Landrace GZ1
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SYSNO ASEP 0557735 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Identification, High-Density Mapping, and Characterization of New Major Powdery Mildew Resistance Loci From the Emmer Wheat Landrace GZ1 Author(s) Korchanová, Zuzana (UEB-Q) ORCID
Švec, M. (SK)
Janáková, Eva (UEB-Q) ORCID
Lampar, Adam (UEB-Q) ORCID
Majka, Maciej (UEB-Q) ORCID
Holušová, Kateřina (UEB-Q) ORCID
Bonchev, G. (BG)
Juračka, Jakub (UEB-Q) ORCID
Cápal, Petr (UEB-Q) RID, ORCID
Valárik, Miroslav (UEB-Q) RID, ORCIDArticle number 897697 Source Title Frontiers in Plant Science. - : Frontiers Research Foundation - ISSN 1664-462X
Roč. 13, May 13 (2022)Number of pages 12 s. Language eng - English Country CH - Switzerland Keywords wheat ; powdery mildew (Blumeria graminis D. C. f. sp. tritici) ; resistance OECD category Plant sciences, botany R&D Projects GA18-11688S GA ČR - Czech Science Foundation (CSF) QK1710302 GA MZe - Ministry of Agriculture (MZe) QK22010293 GA MZe - Ministry of Agriculture (MZe) EF16_019/0000827 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UEB-Q - RVO:61389030 UT WOS 000806061600001 EID SCOPUS 85131328669 DOI 10.3389/fpls.2022.897697 Annotation Powdery mildew is one of the most devastating diseases of wheat which significantly decreases yield and quality. Identification of new sources of resistance and their implementation in breeding programs is the most effective way of disease control. Two major powdery mildew resistance loci conferring resistance to all races in seedling and adult plant stages were identified in the emmer wheat landrace GZ1. Their positions, effects, and transferability were verified using two linkage maps (1,510 codominant SNP markers) constructed from two mapping populations (276 lines in total) based on the resistant GZ1 line. The dominant resistance locus QPm.GZ1-7A was located in a 90 cM interval of chromosome 7AL and explains up to 20% of the trait variation. The recessive locus QPm.GZ1-2A, which provides total resistance, explains up to 40% of the trait variation and was located in the distal part of chromosome 2AL. The locus was saturated with 14 PCR-based markers and delimited to a 0.99 cM region which corresponds to 4.3 Mb of the cv. Zavitan reference genome and comprises 55 predicted genes with no apparent candidate for the QPm.GZ1-2A resistance gene. No recessive resistance gene or allele was located at the locus before, suggesting the presence of a new powdery mildew resistance gene in the GZ1. The mapping data and markers could be used for the implementation of the locus in breeding. Moreover, they are an ideal base for cloning and study of host–pathogen interaction pathways determined by the resistance genes. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2023 Electronic address http://doi.org/10.3389/fpls.2022.897697
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