title: Reevaluation of Two Quantitative Trait Loci for Type II Resistance to Fusarium Head Blight in Wheat Germplasm PI 672538.
abstract: Fusarium head blight (FHB), mainly caused by Fusarium graminearum, is a destructive disease in wheat. A population consisting of 229 F2and F2:3plants derived from the cross PI 672538 × L661 was used to evaluate the reactions to FHB. The FHB resistance data distribution in the F2population indicates that some quantitative trait loci (QTLs) were controlling the FHB resistance in PI 672538. We further detected two major QTLs (Qfhs-2B, Qfhs-3B) from analysis of the resistance data and the PCR-amplified results using WinQTLCart 2.5 software. Qfhs-2B, flanked by Xbarc55-2B and Xbarc1155-2B, explained more than 11.6% of the phenotypic variation of the percentage of diseased spikelets (PDS), and Qfhs-3B, flanked by Xwmc54-3B and Xgwm566-3B, explained more than 10% of the PDS phenotypic variation in the F2:3population. In addition, Qfhs-3B was different from Fhb1 in terms of the pedigree, inheritance, resistance response, chromosomal location, and marker diagnosis. We also detected QTLs for other disease resistance indices, including the percentage of damaged kernels and 1,000-grain weight, in similar chromosomal regions. Therefore, the FHB resistance of PI 672538 was mainly controlled by two major QTLs, mapped on 2B (FhbL693a) and 3B (FhbL693b). PI 672538 could be a useful germplasm for improving wheat FHB resistance.
authors: First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506.
authors: X
authors: X
authors: Li
authors: First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506.
authors: Z P
authors: ZP
authors: Xiang
authors: First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506.
authors: W Q
authors: WQ
authors: Chen
authors: First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506.
authors: Q L
authors: QL
authors: Huang
authors: First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506.
authors: T G
authors: TG
authors: Liu
authors: First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506.
authors: Q
authors: Q
authors: Li
authors: First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506.
authors: S F
authors: SF
authors: Zhong
authors: First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506.
authors: M
authors: M
authors: Zhang
authors: First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506.
authors: J W
authors: JW
authors: Guo
authors: First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506.
authors: L
authors: L
authors: Lei
authors: First, second, fourth, sixth, seventh, eighth, ninth, and eleventh authors: State Key Laboratory of Plant Breeding and Genetics, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; first, third, fifth, and eleventh authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100193, China; second author: College of Food Science and Technology, Sichuan Tourism University, Chengdu, Sichuan 610100, China; sixth author: Department of Biology and Chemistry, Chongqing Industry and Trade Polytechnic Institute, Fuling District of Chongqing 408000, China; and tenth author: Department of Plant Pathology, Kansas State University, Manhattan 66506.
authors: P G
authors: PG
authors: Luo
mesh_terms: D002874:Chromosome Mapping; D060467:Disease Resistance / Q000235:genetics*; D005670:Fusarium / Q000502:physiology*; D010935:Plant Diseases / Q000276:immunology* / Q000382:microbiology; D040641:Quantitative Trait Loci / Q000235:genetics*; D012639:Seeds / Q000235:genetics / Q000276:immunology / Q000382:microbiology; D014908:Triticum / Q000235:genetics* / Q000276:immunology / Q000382:microbiology