Quantitative trait loci mapping for resistance to maize streak virus in F2: 3 population of tropical maize
Maize streak virus (MSV) continues to be a major biotic constraint for maize production throughout Africa. Concerning the quantitative nature of inheritance of resistance to MSV disease (MSVD), we sought to identify new loci for MSV resistance in maize using F2:3 population. The mapping population w...
| Autores principales: | , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2020
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/107728 |
| _version_ | 1855524130678374400 |
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| author | Garcia-Oliveira, A.L. Menkir, A. Kumar, P. Lava Azuh, V. Jacob, O.O. Gedil, Melaku A |
| author_browse | Azuh, V. Garcia-Oliveira, A.L. Gedil, Melaku A Jacob, O.O. Kumar, P. Lava Menkir, A. |
| author_facet | Garcia-Oliveira, A.L. Menkir, A. Kumar, P. Lava Azuh, V. Jacob, O.O. Gedil, Melaku A |
| author_sort | Garcia-Oliveira, A.L. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Maize streak virus (MSV) continues to be a major biotic constraint for maize production throughout Africa. Concerning the quantitative nature of inheritance of resistance to MSV disease (MSVD), we sought to identify new loci for MSV resistance in maize using F2:3 population. The mapping population was artificially inoculated with viruliferous leafhoppers under screenhouse and evaluated for MSVD resistance. Using 948 DArT markers, we identified 18 quantitative trait loci (QTLs) associated with different components of MSVD resistance accounting for 3.1–21.4% of the phenotypic variance, suggesting that a total of eleven genomic regions covering chromosomes 1, 2, 3, 4, 5 and 7 are probably required for MSVD resistance. Two new genomic regions on chromosome 4 revealed the occurrence of co-localized QTLs for different parameters associated with MSVD resistance. Moreover, the consistent appearance of QTL on chromosome 7 for MSVD resistance is illustrating the need for fine-mapping of this locus. In conclusion, these QTLs could provide additional source for breeders to develop MSV resistance. |
| format | Journal Article |
| id | CGSpace107728 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1077282025-11-11T10:15:51Z Quantitative trait loci mapping for resistance to maize streak virus in F2: 3 population of tropical maize Garcia-Oliveira, A.L. Menkir, A. Kumar, P. Lava Azuh, V. Jacob, O.O. Gedil, Melaku A maize maize streak geminivirus quantitative trait loci subsaharan africa disease resistance Maize streak virus (MSV) continues to be a major biotic constraint for maize production throughout Africa. Concerning the quantitative nature of inheritance of resistance to MSV disease (MSVD), we sought to identify new loci for MSV resistance in maize using F2:3 population. The mapping population was artificially inoculated with viruliferous leafhoppers under screenhouse and evaluated for MSVD resistance. Using 948 DArT markers, we identified 18 quantitative trait loci (QTLs) associated with different components of MSVD resistance accounting for 3.1–21.4% of the phenotypic variance, suggesting that a total of eleven genomic regions covering chromosomes 1, 2, 3, 4, 5 and 7 are probably required for MSVD resistance. Two new genomic regions on chromosome 4 revealed the occurrence of co-localized QTLs for different parameters associated with MSVD resistance. Moreover, the consistent appearance of QTL on chromosome 7 for MSVD resistance is illustrating the need for fine-mapping of this locus. In conclusion, these QTLs could provide additional source for breeders to develop MSV resistance. 2020-02-01 2020-03-12T14:14:02Z 2020-03-12T14:14:02Z Journal Article https://hdl.handle.net/10568/107728 en Open Access application/pdf Springer Garcia-Oliveira, A.L., Menkir, A., Kumar, P.L., Azuh, V., Jacob, O.O. & Gedil, M. (2020). Quantitative trait loci mapping for resistance to maize streak virus in F 2: 3 population of tropical maize. Cereal Research Communications, 1-8. |
| spellingShingle | maize maize streak geminivirus quantitative trait loci subsaharan africa disease resistance Garcia-Oliveira, A.L. Menkir, A. Kumar, P. Lava Azuh, V. Jacob, O.O. Gedil, Melaku A Quantitative trait loci mapping for resistance to maize streak virus in F2: 3 population of tropical maize |
| title | Quantitative trait loci mapping for resistance to maize streak virus in F2: 3 population of tropical maize |
| title_full | Quantitative trait loci mapping for resistance to maize streak virus in F2: 3 population of tropical maize |
| title_fullStr | Quantitative trait loci mapping for resistance to maize streak virus in F2: 3 population of tropical maize |
| title_full_unstemmed | Quantitative trait loci mapping for resistance to maize streak virus in F2: 3 population of tropical maize |
| title_short | Quantitative trait loci mapping for resistance to maize streak virus in F2: 3 population of tropical maize |
| title_sort | quantitative trait loci mapping for resistance to maize streak virus in f2 3 population of tropical maize |
| topic | maize maize streak geminivirus quantitative trait loci subsaharan africa disease resistance |
| url | https://hdl.handle.net/10568/107728 |
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