Genome-wide association studies of Striga resistance in extra-early maturing quality protein maize inbred lines
Identification of genes associated with Striga resistance is invaluable for accelerating genetic gains in breeding for Striga resistance in maize. We conducted a genome-wide association study to identify genomic regions associated with grain yield and other agronomic traits under artificial Striga f...
| Autores principales: | , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Oxford University Press
2023
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/129941 |
| _version_ | 1855514796853559296 |
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| author | Okunlola, G. Badu-Apraku, Baffour Ariyo, O. Agre, A.P. Offornedo, Q.N. Ayo-Vaughan, M.A. |
| author_browse | Agre, A.P. Ariyo, O. Ayo-Vaughan, M.A. Badu-Apraku, Baffour Offornedo, Q.N. Okunlola, G. |
| author_facet | Okunlola, G. Badu-Apraku, Baffour Ariyo, O. Agre, A.P. Offornedo, Q.N. Ayo-Vaughan, M.A. |
| author_sort | Okunlola, G. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Identification of genes associated with Striga resistance is invaluable for accelerating genetic gains in breeding for Striga resistance in maize. We conducted a genome-wide association study to identify genomic regions associated with grain yield and other agronomic traits under artificial Striga field infestation. One hundred and forty-one extra-early quality protein maize inbred lines were phenotyped for key agronomic traits. The inbred lines were also genotyped using 49,185 DArTseq markers from which 8,143 were retained for population structure analysis and genome wide-association study. Cluster analysis and population structure revealed the presence of 3 well-defined genetic groups. Using the mixed linear model, 22 SNP markers were identified to be significantly associated with grain yield, Striga damage at 10 weeks after planting, number of emerged Striga plants at 8 and 10 weeks after planting and ear aspect. The identified SNP markers would be useful for breeders for marker-assisted selection to accelerate the genetic enhancement of maize for Striga resistance in sub-Saharan Africa after validation. |
| format | Journal Article |
| id | CGSpace129941 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Oxford University Press |
| publisherStr | Oxford University Press |
| record_format | dspace |
| spelling | CGSpace1299412025-12-08T09:54:28Z Genome-wide association studies of Striga resistance in extra-early maturing quality protein maize inbred lines Okunlola, G. Badu-Apraku, Baffour Ariyo, O. Agre, A.P. Offornedo, Q.N. Ayo-Vaughan, M.A. single nucleotide polymorphism striga hermonthica marker-assisted selection maize climate change food security genetics molecular biology Identification of genes associated with Striga resistance is invaluable for accelerating genetic gains in breeding for Striga resistance in maize. We conducted a genome-wide association study to identify genomic regions associated with grain yield and other agronomic traits under artificial Striga field infestation. One hundred and forty-one extra-early quality protein maize inbred lines were phenotyped for key agronomic traits. The inbred lines were also genotyped using 49,185 DArTseq markers from which 8,143 were retained for population structure analysis and genome wide-association study. Cluster analysis and population structure revealed the presence of 3 well-defined genetic groups. Using the mixed linear model, 22 SNP markers were identified to be significantly associated with grain yield, Striga damage at 10 weeks after planting, number of emerged Striga plants at 8 and 10 weeks after planting and ear aspect. The identified SNP markers would be useful for breeders for marker-assisted selection to accelerate the genetic enhancement of maize for Striga resistance in sub-Saharan Africa after validation. 2023-02-09 2023-04-11T07:39:30Z 2023-04-11T07:39:30Z Journal Article https://hdl.handle.net/10568/129941 en Open Access application/pdf Oxford University Press Okunlola, G., Badu-Apraku, B., Ariyo, O., Agre, P., Offernedo, Q.N. & Ayo-Vaughan, M.A. (2023). Genome-wide association studies of Striga resistance in extra-early maturing quality protein maize inbred lines. G3-Genes Genomes Genetics, 13(2): jkac237, 1-11. |
| spellingShingle | single nucleotide polymorphism striga hermonthica marker-assisted selection maize climate change food security genetics molecular biology Okunlola, G. Badu-Apraku, Baffour Ariyo, O. Agre, A.P. Offornedo, Q.N. Ayo-Vaughan, M.A. Genome-wide association studies of Striga resistance in extra-early maturing quality protein maize inbred lines |
| title | Genome-wide association studies of Striga resistance in extra-early maturing quality protein maize inbred lines |
| title_full | Genome-wide association studies of Striga resistance in extra-early maturing quality protein maize inbred lines |
| title_fullStr | Genome-wide association studies of Striga resistance in extra-early maturing quality protein maize inbred lines |
| title_full_unstemmed | Genome-wide association studies of Striga resistance in extra-early maturing quality protein maize inbred lines |
| title_short | Genome-wide association studies of Striga resistance in extra-early maturing quality protein maize inbred lines |
| title_sort | genome wide association studies of striga resistance in extra early maturing quality protein maize inbred lines |
| topic | single nucleotide polymorphism striga hermonthica marker-assisted selection maize climate change food security genetics molecular biology |
| url | https://hdl.handle.net/10568/129941 |
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