Back to Search
Start Over
Identification of herbicide resistance loci using a genome-wide association study and linkage mapping in Chinese common wheat
- Source :
- Crop Journal, Vol 8, Iss 4, Pp 666-675 (2020)
- Publication Year :
- 2020
- Publisher :
- KeAi Communications Co., Ltd., 2020.
-
Abstract
- Carfentrazone-ethyl and tribenuron-methyl, the two widely used herbicides for weed control in field crops, frequently cause phytotoxicity to wheat seedlings in the field. In this study, a total of 697 wheat accessions containing three panels were scanned using wheat 90 K and 660 K SNP arrays to identify important herbicide resistance loci. Genome-wide association study (GWAS) revealed 329 significant single-nucleotide polymorphisms (SNPs) with phenotypic variance explained (PVE) of 11.3% to 27.6%. Among these SNPs, 15 were detected in multiple environments and they were mainly distributed on chromosomes 1B, 2D, 5B, 5D, 6D, and 7D. Further analysis indicated that gHR-5B (467–587 Mb), gHR-7D (46–52 Mb), and gHR-1B (517–580 Mb) were important herbicide resistance loci in wheat. Linkage mapping in a bi-parental population detected one QTL (qHR-1B) with PVE of 7.44% to 8.28%. This is reliable locus because its physical position (554–566 Mb) overlapped with gHR-1B by GWAS in the genome of Chinese Spring. This study provided some herbicide-resistant germplasm and important genetic loci for identifying genes of common wheat.
- Subjects :
- 0106 biological sciences
0301 basic medicine
Germplasm
Quantitative trait locus
Genome-wide association study
Population
Locus (genetics)
Single-nucleotide polymorphism
Plant Science
Biology
01 natural sciences
Common wheat
lcsh:Agriculture
03 medical and health sciences
Genetic linkage
Carfentrazone-ethyl
lcsh:Agriculture (General)
education
Genetics
education.field_of_study
lcsh:S
food and beverages
lcsh:S1-972
Herbicide resistance
030104 developmental biology
Agronomy and Crop Science
010606 plant biology & botany
Subjects
Details
- Language :
- English
- ISSN :
- 22145141
- Volume :
- 8
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Crop Journal
- Accession number :
- edsair.doi.dedup.....0eaef70d40c97982e803f7c0a534323b