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Mapping of Stripe Rust and Leaf Rust Resistance Quantitative Trait Loci in the Chinese Spring Wheat Line Mianyang351-15
- Source :
- Phytopathology®. 110:1074-1081
- Publication Year :
- 2020
- Publisher :
- Scientific Societies, 2020.
-
Abstract
- Stripe rust and leaf rust cause wheat yield losses of up to 70% worldwide. The employment of resistant cultivars is the major method to reduce losses from these diseases. The objective of this study was to detect quantitative trait loci (QTL) for stripe rust and leaf rust resistance in 150 F6 recombinant inbred lines (RIL) derived from a cross between Mianyang351-15 and Zhengzhou 5389. Both parents and the RIL population were genotyped with the Wheat55K single nucleotide polymorphism (SNP) array and simple sequence repeat markers, and phenotyped for stripe rust severity at Mianyang in Sichuan Province and Baoding in Hebei Province, and for leaf rust severity at Zhoukou in Henan Province and at Baoding in 2014 to 2017 cropping seasons. Seven and four QTL all contributed from Mianyang351-15 were identified for resistance to stripe rust and leaf rust, respectively. Four of these QTL on chromosomes 1BL, 2AS, 2DS, and 7BL conferred resistance to both stripe rust and leaf rust. The QTL on 1BL, 2AS, and 7BL were identified as Lr46/Yr29, Lr37/Yr17, and Lr68, respectively. QYr.hbau-2DS/QLr.hbau-2DS was detected at similar positions to previously reported loci. QYr.hbau-1DL, QYr.hbau-3AS, and QYr.hbau-3DL are likely to be new. Combined effects of QTL in the RIL population indicated RIL combining all QTL had the highest resistance level compared with those of lower numbers or no QTL. These QTL, with their closely linked SNP markers, are applicable for marker-assisted breeding and candidate gene discovery.
- Subjects :
- 0106 biological sciences
0301 basic medicine
Candidate gene
Quantitative Trait Loci
Population
Single-nucleotide polymorphism
Plant Science
Quantitative trait locus
Biology
01 natural sciences
Genetic analysis
Rust
03 medical and health sciences
Inbred strain
Humans
Cultivar
education
Triticum
Disease Resistance
Plant Diseases
education.field_of_study
Basidiomycota
Chromosome Mapping
food and beverages
Horticulture
030104 developmental biology
Seasons
Agronomy and Crop Science
010606 plant biology & botany
Subjects
Details
- ISSN :
- 19437684 and 0031949X
- Volume :
- 110
- Database :
- OpenAIRE
- Journal :
- Phytopathology®
- Accession number :
- edsair.doi.dedup.....51ba6cd4f8d274e05e13bc4458632ac0