Identification of genetic loci associated with rough dwarf disease resistance in maize by integrating GWAS and linkage mapping
| Autor: | Meiai Zhao, Shuangshuang Liu, Jennifer S. Jaqueth, Jiabo Wang, Daniel P. Jeffers, Bailin Li, Pei Yuhe, Jing Han, Xuwen Jiang, Xiyun Song |
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| Rok vydání: | 2021 |
| Předmět: |
China
Genotype Genetic Linkage Population Quantitative Trait Loci Genome-wide association study Single-nucleotide polymorphism Plant Science Biology Plant disease resistance Genes Plant Polymorphism Single Nucleotide Zea mays Genetic linkage Gene Expression Regulation Plant Genetics SNP education Hybrid Genetic association Disease Resistance education.field_of_study Chromosome Mapping General Medicine Plant Breeding Phenotype Agronomy and Crop Science Genome-Wide Association Study |
| Zdroj: | Plant science : an international journal of experimental plant biology. 315 |
| ISSN: | 1873-2259 |
| Popis: | Maize rough dwarf disease (MRDD) is a viral disease that causes substantial yield loss, especially in China’s summer planted maize area. Discovery of resistance genes would help in developing high-yielding resistant maize hybrids. Genome-wide association studies (GWASs) have advanced quickly and are now a powerful tool for dissecting complex genetic architectures. In this study, the disease severity index (DSI) of 292 maize inbred lines and an F6 linkage population were investigated across multiple environments for two years. Using the genotypes obtained from the Maize SNP 50K chip, a GWAS was performed with four analytical models. The results showed that 22 SNPs distributed on chromosomes 1, 3, 4, 6, 7 and 8 were significantly associated with resistance to MRDD (P |
| Databáze: | OpenAIRE |
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