Alleles of a wall‐associated kinase gene account for three of the major northern corn leaf blight resistance loci in maize
0301 basic medicine
NCLB
ZmWAK‐
Plant Science
580 Plants (Botany)
Htn1
Genes, Plant
Zea mays
1307 Cell Biology
resistance
03 medical and health sciences
10126 Department of Plant and Microbial Biology
1311 Genetics
Ascomycota
1110 Plant Science
Genetics
[SDV.BV]Life Sciences [q-bio]/Vegetal Biology
10211 Zurich-Basel Plant Science Center
Alleles
Disease Resistance
Plant Diseases
Plant Proteins
2. Zero hunger
WAKs
Phosphotransferases
Chromosome Mapping
Cell Biology
ZmWAK-RLK1
Plant Leaves
RLK1
Ht2
Ht3
DOI:
10.1111/tpj.15183
Publication Date:
2021-02-06T00:35:55Z
AUTHORS (13)
ABSTRACT
Northern corn leaf blight, caused by the fungal pathogen Setosphaeria turcica (anamorph Exserohilum turcicum), is one of most devastating foliar diseases maize (Zea mays). Four genes Ht1, Ht2, Ht3 and Htn1 represent major sources genetic resistance against hemibiotrophic fungus S. turcica. Differential lines containing these also form basis to classify races. Here, we show that Ht2 are identical allelic previously cloned gene. Using a map-based cloning approach Targeting Induced Local Lesions in Genomes (TILLING), demonstrate Ht2/Ht3 an allele wall-associated receptor-like kinase gene ZmWAK-RLK1. The ZmWAK-RLK1 variants encoded differ multiple amino acid polymorphisms particularly affect putative extracellular domain. A diversity analysis revealed presence dozens alleles. have been described over decades as independent loci with different race spectra responses. Our work demonstrates three allelic, which has implications for northern blight breeding nomenclature pathotypes. We hypothesize background effects confounded classical description disease past.
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CITATIONS (42)
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