Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set
The Guinea yams, Dioscorea cayenensis Lam. and D. rotundata Poir. (D. cayenensis–D. rotundata complex), represent a highly importantcrop, widely distributed in the humid and semi-humidtropics. The ploidy levels of 170 accessions of the core set of Guinea yams from West African countries was determin...
| Autores principales: | , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2009
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/90195 |
| _version_ | 1855534768241770496 |
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| author | Obidiegwu, J.E. Loureiro, J. Ene-Obong, E.E. Rodríguez, E. Kolesnikova-Allen, M. Santos, C. Muoneke, C. Asiedu, Robert |
| author_browse | Asiedu, Robert Ene-Obong, E.E. Kolesnikova-Allen, M. Loureiro, J. Muoneke, C. Obidiegwu, J.E. Rodríguez, E. Santos, C. |
| author_facet | Obidiegwu, J.E. Loureiro, J. Ene-Obong, E.E. Rodríguez, E. Kolesnikova-Allen, M. Santos, C. Muoneke, C. Asiedu, Robert |
| author_sort | Obidiegwu, J.E. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The Guinea yams, Dioscorea cayenensis Lam. and D. rotundata Poir. (D. cayenensis–D. rotundata complex), represent a highly importantcrop, widely distributed in the humid and semi-humidtropics. The ploidy levels of 170 accessions of the core set of Guinea yams from West African countries was determined using flow cytometry with propidium iodide staining. One hundred and eight of the genotypes were found to be tetraploid, 47 were hexaploid and five were octoploid. One mixoploid individual containing tetraploid and hexaploid nucleiwas also detected. A deeper analysis considering each separate taxon revealed that while for D. rotundata the majority of individuals were tetraploid, for D. cayenensis this ploidy level was not detected in any of the accessions. Also, no association between ploidy level and place of cultivation was found for the evaluated germplasm. The obtained data is highly valuable for breeding programs of Guinea yam, especially for the optimization of future hybridization experiments directed to the genetic improvement of this economically important crop |
| format | Journal Article |
| id | CGSpace90195 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2009 |
| publishDateRange | 2009 |
| publishDateSort | 2009 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace901952024-03-03T19:19:37Z Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set Obidiegwu, J.E. Loureiro, J. Ene-Obong, E.E. Rodríguez, E. Kolesnikova-Allen, M. Santos, C. Muoneke, C. Asiedu, Robert breeding dioscorea cayenensis flow cytometry genetic resources germplasm ploidy level The Guinea yams, Dioscorea cayenensis Lam. and D. rotundata Poir. (D. cayenensis–D. rotundata complex), represent a highly importantcrop, widely distributed in the humid and semi-humidtropics. The ploidy levels of 170 accessions of the core set of Guinea yams from West African countries was determined using flow cytometry with propidium iodide staining. One hundred and eight of the genotypes were found to be tetraploid, 47 were hexaploid and five were octoploid. One mixoploid individual containing tetraploid and hexaploid nucleiwas also detected. A deeper analysis considering each separate taxon revealed that while for D. rotundata the majority of individuals were tetraploid, for D. cayenensis this ploidy level was not detected in any of the accessions. Also, no association between ploidy level and place of cultivation was found for the evaluated germplasm. The obtained data is highly valuable for breeding programs of Guinea yam, especially for the optimization of future hybridization experiments directed to the genetic improvement of this economically important crop 2009-10 2018-01-15T10:50:48Z 2018-01-15T10:50:48Z Journal Article https://hdl.handle.net/10568/90195 en Limited Access Springer Obidiegwu, J., Loureiro, J., Ene-Obong, E., Rodriguez, E., Kolesnikova-Allen, M., Santos, C., ... & Asiedu, R. (2009). Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set. Euphytica, 169(3), 319-326. |
| spellingShingle | breeding dioscorea cayenensis flow cytometry genetic resources germplasm ploidy level Obidiegwu, J.E. Loureiro, J. Ene-Obong, E.E. Rodríguez, E. Kolesnikova-Allen, M. Santos, C. Muoneke, C. Asiedu, Robert Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set |
| title | Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set |
| title_full | Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set |
| title_fullStr | Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set |
| title_full_unstemmed | Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set |
| title_short | Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set |
| title_sort | ploidy level studies on the dioscorea cayenensis dioscorea rotundata complex core set |
| topic | breeding dioscorea cayenensis flow cytometry genetic resources germplasm ploidy level |
| url | https://hdl.handle.net/10568/90195 |
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