A genetic model for the female sterility barrier between Asian and African cultivated rice species
S1 is the most important locus acting as a reproductive barrier between Oryza sativa and O. glaberrima. It is a complex locus, with factors that may affect male and female fertility separately. Recently, the component causing the allelic elimination of pollen was fine mapped. However, the position a...
| Autores principales: | , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Oxford University Press
2010
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/42524 |
| _version_ | 1855514585660915712 |
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| author | Garavito Espejo, AM Guyot, R. Lozano, J. Gavory, F Samain, S Panaud, O Tohme, Joseph M. Ghesquière, Alain Lorieux, Mathias |
| author_browse | Garavito Espejo, AM Gavory, F Ghesquière, Alain Guyot, R. Lorieux, Mathias Lozano, J. Panaud, O Samain, S Tohme, Joseph M. |
| author_facet | Garavito Espejo, AM Guyot, R. Lozano, J. Gavory, F Samain, S Panaud, O Tohme, Joseph M. Ghesquière, Alain Lorieux, Mathias |
| author_sort | Garavito Espejo, AM |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | S1 is the most important locus acting as a reproductive barrier between Oryza sativa and O. glaberrima. It is a complex locus, with factors that may affect male and female fertility separately. Recently, the component causing the allelic elimination of pollen was fine mapped. However, the position and nature of the component causing female sterility remains unknown. To fine map the factor of the S1 locus affecting female fertility, we developed a mapping approach based on the evaluation of the degree of female transmission ratio distortion (fTRD) of markers. Through implementing this methodology in four O. sativa × O. glaberrima crosses, the female component of the S1 locus was mapped into a 27.8-kb (O. sativa) and 50.3-kb (O. glaberrima) region included within the interval bearing the male component of the locus. Moreover, evidence of additional factors interacting with S1 was also found. In light of the available data, a model where incompatibilities in epistatic interactions between S1 and the additional factors are the cause of the female sterility barrier between O. sativa and O. glaberrima was developed to explain the female sterility and the TRD mediated by S1. According to our model, the recombination ratio and allelic combinations between these factors would determine the final allelic frequencies observed for a given cross. |
| format | Journal Article |
| id | CGSpace42524 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2010 |
| publishDateRange | 2010 |
| publishDateSort | 2010 |
| publisher | Oxford University Press |
| publisherStr | Oxford University Press |
| record_format | dspace |
| spelling | CGSpace425242024-08-27T10:34:47Z A genetic model for the female sterility barrier between Asian and African cultivated rice species Garavito Espejo, AM Guyot, R. Lozano, J. Gavory, F Samain, S Panaud, O Tohme, Joseph M. Ghesquière, Alain Lorieux, Mathias oryza sativa oryza glaberrima hybrid sterility transmission ratio distortion bateson-dobzhansky-muller incompatibilities genetics S1 is the most important locus acting as a reproductive barrier between Oryza sativa and O. glaberrima. It is a complex locus, with factors that may affect male and female fertility separately. Recently, the component causing the allelic elimination of pollen was fine mapped. However, the position and nature of the component causing female sterility remains unknown. To fine map the factor of the S1 locus affecting female fertility, we developed a mapping approach based on the evaluation of the degree of female transmission ratio distortion (fTRD) of markers. Through implementing this methodology in four O. sativa × O. glaberrima crosses, the female component of the S1 locus was mapped into a 27.8-kb (O. sativa) and 50.3-kb (O. glaberrima) region included within the interval bearing the male component of the locus. Moreover, evidence of additional factors interacting with S1 was also found. In light of the available data, a model where incompatibilities in epistatic interactions between S1 and the additional factors are the cause of the female sterility barrier between O. sativa and O. glaberrima was developed to explain the female sterility and the TRD mediated by S1. According to our model, the recombination ratio and allelic combinations between these factors would determine the final allelic frequencies observed for a given cross. 2010-08-01 2014-09-24T07:58:08Z 2014-09-24T07:58:08Z Journal Article https://hdl.handle.net/10568/42524 en Open Access Oxford University Press Garavito Espejo, Andrea; Guyot, Romain; Lozano, Jaime; Gavory, Fréderick; Samain, Silvie; Panaud, Oliver; Tohme, Joseph M.; Ghesquiere, Alain; Lorieux, Mathias (2010). A Genetic model for the female sterility barrier between Asian and African cultivated rice species. Genetics 185 (4):1425-1440 |
| spellingShingle | oryza sativa oryza glaberrima hybrid sterility transmission ratio distortion bateson-dobzhansky-muller incompatibilities genetics Garavito Espejo, AM Guyot, R. Lozano, J. Gavory, F Samain, S Panaud, O Tohme, Joseph M. Ghesquière, Alain Lorieux, Mathias A genetic model for the female sterility barrier between Asian and African cultivated rice species |
| title | A genetic model for the female sterility barrier between Asian and African cultivated rice species |
| title_full | A genetic model for the female sterility barrier between Asian and African cultivated rice species |
| title_fullStr | A genetic model for the female sterility barrier between Asian and African cultivated rice species |
| title_full_unstemmed | A genetic model for the female sterility barrier between Asian and African cultivated rice species |
| title_short | A genetic model for the female sterility barrier between Asian and African cultivated rice species |
| title_sort | genetic model for the female sterility barrier between asian and african cultivated rice species |
| topic | oryza sativa oryza glaberrima hybrid sterility transmission ratio distortion bateson-dobzhansky-muller incompatibilities genetics |
| url | https://hdl.handle.net/10568/42524 |
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