Genome-wide association analysis reveals new insights into the genetic architecture of defensive, agro-morphological and quality-related traits in cassava
Cassava (Manihot esculenta) is one of the most important starchy root crops in the tropics due to its adaptation to marginal environments. Genetic progress in this clonally propagated crop can be accelerated through the discovery of markers and candidate genes that could be used in cassava breeding...
| Autores principales: | , , , , , , , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2022
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/110973 |
| _version_ | 1855540466173345792 |
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| author | Rabbi, Ismail Y. Kayondo, S.I. Bauchet, Guillaume J. Yusuf, M. Aghogho, C.I. Ogunpaimo, K. Uwugiaren, R. Smith, I.A. Peteti, P. Agbona, A. Parkes, Elizabeth Y. Ezenwaka, L. Wolfe, M. Jannink, Jean-Luc Egesi, Chiedozie N. Kulakow, Peter A. |
| author_browse | Agbona, A. Aghogho, C.I. Bauchet, Guillaume J. Egesi, Chiedozie N. Ezenwaka, L. Jannink, Jean-Luc Kayondo, S.I. Kulakow, Peter A. Ogunpaimo, K. Parkes, Elizabeth Y. Peteti, P. Rabbi, Ismail Y. Smith, I.A. Uwugiaren, R. Wolfe, M. Yusuf, M. |
| author_facet | Rabbi, Ismail Y. Kayondo, S.I. Bauchet, Guillaume J. Yusuf, M. Aghogho, C.I. Ogunpaimo, K. Uwugiaren, R. Smith, I.A. Peteti, P. Agbona, A. Parkes, Elizabeth Y. Ezenwaka, L. Wolfe, M. Jannink, Jean-Luc Egesi, Chiedozie N. Kulakow, Peter A. |
| author_sort | Rabbi, Ismail Y. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Cassava (Manihot esculenta) is one of the most important starchy root crops in the tropics due to its adaptation to marginal environments. Genetic progress in this clonally propagated crop can be accelerated through the discovery of markers and candidate genes that could be used in cassava breeding programs. We carried out a genome-wide association study (GWAS) using a panel of 5,310 clones developed at the International Institute of Tropical Agriculture - Nigeria. The population was genotyped at more than 100,000 SNP markers via genotyping-by-sequencing (GBS). Genomic regions underlying genetic variation for 14 traits classified broadly into four categories: biotic stress (cassava mosaic disease and cassava green mite severity); quality (dry matter content and carotenoid content) and plant agronomy (harvest index and plant type). We also included several agro-morphological traits related to leaves, stems and roots with high heritability. In total, 41 significant associations were uncovered. While some of the identified loci matched with those previously reported, we present additional association signals for the traits. We provide a catalogue of favourable alleles at the most significant SNP for each trait-locus combination and candidate genes occurring within the GWAS hits. These resources provide a foundation for the development of markers that could be used in cassava breeding programs and candidate genes for functional validation. |
| format | Journal Article |
| id | CGSpace110973 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1109732025-11-11T11:04:19Z Genome-wide association analysis reveals new insights into the genetic architecture of defensive, agro-morphological and quality-related traits in cassava Rabbi, Ismail Y. Kayondo, S.I. Bauchet, Guillaume J. Yusuf, M. Aghogho, C.I. Ogunpaimo, K. Uwugiaren, R. Smith, I.A. Peteti, P. Agbona, A. Parkes, Elizabeth Y. Ezenwaka, L. Wolfe, M. Jannink, Jean-Luc Egesi, Chiedozie N. Kulakow, Peter A. cassava breeding genomes pest resistance disease resistance morphology genotypes Cassava (Manihot esculenta) is one of the most important starchy root crops in the tropics due to its adaptation to marginal environments. Genetic progress in this clonally propagated crop can be accelerated through the discovery of markers and candidate genes that could be used in cassava breeding programs. We carried out a genome-wide association study (GWAS) using a panel of 5,310 clones developed at the International Institute of Tropical Agriculture - Nigeria. The population was genotyped at more than 100,000 SNP markers via genotyping-by-sequencing (GBS). Genomic regions underlying genetic variation for 14 traits classified broadly into four categories: biotic stress (cassava mosaic disease and cassava green mite severity); quality (dry matter content and carotenoid content) and plant agronomy (harvest index and plant type). We also included several agro-morphological traits related to leaves, stems and roots with high heritability. In total, 41 significant associations were uncovered. While some of the identified loci matched with those previously reported, we present additional association signals for the traits. We provide a catalogue of favourable alleles at the most significant SNP for each trait-locus combination and candidate genes occurring within the GWAS hits. These resources provide a foundation for the development of markers that could be used in cassava breeding programs and candidate genes for functional validation. 2022-06 2021-01-25T14:54:57Z 2021-01-25T14:54:57Z Journal Article https://hdl.handle.net/10568/110973 en Open Access application/pdf Springer Rabbi, I.Y., Kayondo, S.I., Bauchet, G., Muyideen, Y., Aghogho, C.I., Ogunpaimo, K., ... & Kulakow, P. (2020). Genome-wide association analysis reveals new insights into the genetic architecture of defensive, agro-morphological and quality-related traits in cassava. Plant Molecular Biology, 1-19. |
| spellingShingle | cassava breeding genomes pest resistance disease resistance morphology genotypes Rabbi, Ismail Y. Kayondo, S.I. Bauchet, Guillaume J. Yusuf, M. Aghogho, C.I. Ogunpaimo, K. Uwugiaren, R. Smith, I.A. Peteti, P. Agbona, A. Parkes, Elizabeth Y. Ezenwaka, L. Wolfe, M. Jannink, Jean-Luc Egesi, Chiedozie N. Kulakow, Peter A. Genome-wide association analysis reveals new insights into the genetic architecture of defensive, agro-morphological and quality-related traits in cassava |
| title | Genome-wide association analysis reveals new insights into the genetic architecture of defensive, agro-morphological and quality-related traits in cassava |
| title_full | Genome-wide association analysis reveals new insights into the genetic architecture of defensive, agro-morphological and quality-related traits in cassava |
| title_fullStr | Genome-wide association analysis reveals new insights into the genetic architecture of defensive, agro-morphological and quality-related traits in cassava |
| title_full_unstemmed | Genome-wide association analysis reveals new insights into the genetic architecture of defensive, agro-morphological and quality-related traits in cassava |
| title_short | Genome-wide association analysis reveals new insights into the genetic architecture of defensive, agro-morphological and quality-related traits in cassava |
| title_sort | genome wide association analysis reveals new insights into the genetic architecture of defensive agro morphological and quality related traits in cassava |
| topic | cassava breeding genomes pest resistance disease resistance morphology genotypes |
| url | https://hdl.handle.net/10568/110973 |
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