Phenology, sterility and inheritance of two environment genic male sterile (EGMS) lines for hybrid rice
There is still limited quantitative understanding of how environmental factors affect sterility of Environment-conditioned genic male sterility (EGMS) lines. A model was developed for this purpose and tested based on experimental data from Ndiaye (Senegal) in 2013-2015. For the two EGMS lines tested...
| Autores principales: | , |
|---|---|
| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2017
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/116620 |
| _version_ | 1855515932759162880 |
|---|---|
| author | El-Namaky, R. Oort, P.A.J. van |
| author_browse | El-Namaky, R. Oort, P.A.J. van |
| author_facet | El-Namaky, R. Oort, P.A.J. van |
| author_sort | El-Namaky, R. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | There is still limited quantitative understanding of how environmental factors affect sterility of Environment-conditioned genic male sterility (EGMS) lines. A model was developed for this purpose and tested based on experimental data from Ndiaye (Senegal) in 2013-2015. For the two EGMS lines tested here, it was not clear if one or more recessive gene(s) were causing male sterility. This was tested by studying sterility segregation of the F2 populations.Daylength (photoperiod) and minimum temperatures during the period from panicle initiation to flowering had significant effects on male sterility. Results clearly showed that only one recessive gene was involved in causing male sterility. The model was applied to determine the set of sowing dates of two different EGMS lines such that both would flower at the same time the pollen would be completely sterile. In the same time the local popular variety (Sahel 108, the male pollen donor) being sufficiently fertile to produce the hybrid seeds. The model was applied to investigate the viability of the two line breeding system in the same location with climate change (+2oC) and in two other potential locations: in M'Be in Ivory Coast and in the Nile delta in Egypt.Apart from giving new insights in the relation between environment and EGMS, this study shows that these insights can be used to assess safe sowing windows and assess the suitability of sterility and fertility period of different environments for a two line hybrid rice production system. |
| format | Journal Article |
| id | CGSpace116620 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1166202025-11-05T06:49:33Z Phenology, sterility and inheritance of two environment genic male sterile (EGMS) lines for hybrid rice El-Namaky, R. Oort, P.A.J. van inheritance environment simulation models rice phenology There is still limited quantitative understanding of how environmental factors affect sterility of Environment-conditioned genic male sterility (EGMS) lines. A model was developed for this purpose and tested based on experimental data from Ndiaye (Senegal) in 2013-2015. For the two EGMS lines tested here, it was not clear if one or more recessive gene(s) were causing male sterility. This was tested by studying sterility segregation of the F2 populations.Daylength (photoperiod) and minimum temperatures during the period from panicle initiation to flowering had significant effects on male sterility. Results clearly showed that only one recessive gene was involved in causing male sterility. The model was applied to determine the set of sowing dates of two different EGMS lines such that both would flower at the same time the pollen would be completely sterile. In the same time the local popular variety (Sahel 108, the male pollen donor) being sufficiently fertile to produce the hybrid seeds. The model was applied to investigate the viability of the two line breeding system in the same location with climate change (+2oC) and in two other potential locations: in M'Be in Ivory Coast and in the Nile delta in Egypt.Apart from giving new insights in the relation between environment and EGMS, this study shows that these insights can be used to assess safe sowing windows and assess the suitability of sterility and fertility period of different environments for a two line hybrid rice production system. 2017-12 2021-12-09T13:28:19Z 2021-12-09T13:28:19Z Journal Article https://hdl.handle.net/10568/116620 en Open Access application/pdf Springer El-Namaky, R. and van Oort, P.A.J. 2017. Phenology, sterility and inheritance of two environment genic male sterile (EGMS) lines for hybrid rice. Rice. Volume 10, Issue1:31. |
| spellingShingle | inheritance environment simulation models rice phenology El-Namaky, R. Oort, P.A.J. van Phenology, sterility and inheritance of two environment genic male sterile (EGMS) lines for hybrid rice |
| title | Phenology, sterility and inheritance of two environment genic male sterile (EGMS) lines for hybrid rice |
| title_full | Phenology, sterility and inheritance of two environment genic male sterile (EGMS) lines for hybrid rice |
| title_fullStr | Phenology, sterility and inheritance of two environment genic male sterile (EGMS) lines for hybrid rice |
| title_full_unstemmed | Phenology, sterility and inheritance of two environment genic male sterile (EGMS) lines for hybrid rice |
| title_short | Phenology, sterility and inheritance of two environment genic male sterile (EGMS) lines for hybrid rice |
| title_sort | phenology sterility and inheritance of two environment genic male sterile egms lines for hybrid rice |
| topic | inheritance environment simulation models rice phenology |
| url | https://hdl.handle.net/10568/116620 |
| work_keys_str_mv | AT elnamakyr phenologysterilityandinheritanceoftwoenvironmentgenicmalesterileegmslinesforhybridrice AT oortpajvan phenologysterilityandinheritanceoftwoenvironmentgenicmalesterileegmslinesforhybridrice |