Genome-wide association mapping and genomic prediction of stalk rot in two mid-altitude tropical maize populations
Maize stalk rot reduces grain yield and quality. Information about the genetics of resistance to maize stalk rot could help breeders design effective breeding strategies for the trait. Genomic prediction may be a more effective breeding strategy for stalk-rot resistance than marker-assisted selectio...
| Autores principales: | , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2024
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/162518 |
| _version_ | 1855520423159005184 |
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| author | Junqiao Song Pacheco Gil, Rosa Angela Alakonya, Amos Cruz-Morales, Andrea S. Muñoz-Zavala, Carlos Jingtao Qu Chunping Wang Xuecai Zhang San Vicente Garcia, Felix M. Dhliwayo, Thanda |
| author_browse | Alakonya, Amos Chunping Wang Cruz-Morales, Andrea S. Dhliwayo, Thanda Jingtao Qu Junqiao Song Muñoz-Zavala, Carlos Pacheco Gil, Rosa Angela San Vicente Garcia, Felix M. Xuecai Zhang |
| author_facet | Junqiao Song Pacheco Gil, Rosa Angela Alakonya, Amos Cruz-Morales, Andrea S. Muñoz-Zavala, Carlos Jingtao Qu Chunping Wang Xuecai Zhang San Vicente Garcia, Felix M. Dhliwayo, Thanda |
| author_sort | Junqiao Song |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Maize stalk rot reduces grain yield and quality. Information about the genetics of resistance to maize stalk rot could help breeders design effective breeding strategies for the trait. Genomic prediction may be a more effective breeding strategy for stalk-rot resistance than marker-assisted selection. We performed a genome-wide association study (GWAS) and genomic prediction of resistance in testcross hybrids of 677 inbred lines from the Tuxpeño and non-Tuxpeño heterotic pools grown in three environments and genotyped with 200,681 single-nucleotide polymorphisms (SNPs). Eighteen SNPs associated with stalk rot shared genomic regions with gene families previously associated with plant biotic and abiotic responses. More favorable SNP haplotypes traced to tropical than to temperate progenitors of the inbred lines. Incorporating genotype-by-environment (G × E) interaction increased genomic prediction accuracy. |
| format | Journal Article |
| id | CGSpace162518 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1625182025-12-08T09:54:28Z Genome-wide association mapping and genomic prediction of stalk rot in two mid-altitude tropical maize populations Junqiao Song Pacheco Gil, Rosa Angela Alakonya, Amos Cruz-Morales, Andrea S. Muñoz-Zavala, Carlos Jingtao Qu Chunping Wang Xuecai Zhang San Vicente Garcia, Felix M. Dhliwayo, Thanda genotype environment interaction genome-wide association studies forecasting haplotype analysis maize stalk rot Maize stalk rot reduces grain yield and quality. Information about the genetics of resistance to maize stalk rot could help breeders design effective breeding strategies for the trait. Genomic prediction may be a more effective breeding strategy for stalk-rot resistance than marker-assisted selection. We performed a genome-wide association study (GWAS) and genomic prediction of resistance in testcross hybrids of 677 inbred lines from the Tuxpeño and non-Tuxpeño heterotic pools grown in three environments and genotyped with 200,681 single-nucleotide polymorphisms (SNPs). Eighteen SNPs associated with stalk rot shared genomic regions with gene families previously associated with plant biotic and abiotic responses. More favorable SNP haplotypes traced to tropical than to temperate progenitors of the inbred lines. Incorporating genotype-by-environment (G × E) interaction increased genomic prediction accuracy. 2024-04 2024-11-21T14:36:30Z 2024-11-21T14:36:30Z Journal Article https://hdl.handle.net/10568/162518 en Open Access application/pdf Elsevier Song, J., Pacheco Gil, R. A., Alakonya, A., Cruz-Morales, A. S., Muñoz-Zavala, C., Qu, J., Wang, C., Zhang, X., San Vicente Garcia, F. M., & Dhliwayo, T. (2024). Genome-wide association mapping and genomic prediction of stalk rot in two mid-altitude tropical maize populations. The Crop Journal, 12(2), 558-568. https://doi.org/10.1016/j.cj.2024.02.004 |
| spellingShingle | genotype environment interaction genome-wide association studies forecasting haplotype analysis maize stalk rot Junqiao Song Pacheco Gil, Rosa Angela Alakonya, Amos Cruz-Morales, Andrea S. Muñoz-Zavala, Carlos Jingtao Qu Chunping Wang Xuecai Zhang San Vicente Garcia, Felix M. Dhliwayo, Thanda Genome-wide association mapping and genomic prediction of stalk rot in two mid-altitude tropical maize populations |
| title | Genome-wide association mapping and genomic prediction of stalk rot in two mid-altitude tropical maize populations |
| title_full | Genome-wide association mapping and genomic prediction of stalk rot in two mid-altitude tropical maize populations |
| title_fullStr | Genome-wide association mapping and genomic prediction of stalk rot in two mid-altitude tropical maize populations |
| title_full_unstemmed | Genome-wide association mapping and genomic prediction of stalk rot in two mid-altitude tropical maize populations |
| title_short | Genome-wide association mapping and genomic prediction of stalk rot in two mid-altitude tropical maize populations |
| title_sort | genome wide association mapping and genomic prediction of stalk rot in two mid altitude tropical maize populations |
| topic | genotype environment interaction genome-wide association studies forecasting haplotype analysis maize stalk rot |
| url | https://hdl.handle.net/10568/162518 |
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