Genetic diversity analysis of Cuban traditional rice (Oryza sativa L.) varieties based on microsatellite markers
Microsatellite polymorphism was studied in a sample of 39 traditional rice (Oryza sativa L.) varieties and 11 improved varieties widely planted in Cuba. The study was aimed at assessing the extent of genetic variation in traditional and improved varieties and to establish their genetic relationship...
| Autores principales: | , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
FapUNIFESP
2007
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/43485 |
| _version_ | 1855536129995964416 |
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| author | Álvarez, A. Fuentes, J.L Puldon, V Gómez, P.J. Mora, L Duque E., Myriam Cristina Gallego Sánchez, Gerardo J. Tohme, Joseph M. |
| author_browse | Duque E., Myriam Cristina Fuentes, J.L Gallego Sánchez, Gerardo J. Gómez, P.J. Mora, L Puldon, V Tohme, Joseph M. Álvarez, A. |
| author_facet | Álvarez, A. Fuentes, J.L Puldon, V Gómez, P.J. Mora, L Duque E., Myriam Cristina Gallego Sánchez, Gerardo J. Tohme, Joseph M. |
| author_sort | Álvarez, A. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Microsatellite polymorphism was studied in a sample of 39 traditional rice (Oryza sativa L.) varieties and 11 improved varieties widely planted in Cuba. The study was aimed at assessing the extent of genetic variation in traditional and improved varieties and to establish their genetic relationship for breeding purposes. Heterozygosity was analyzed at each microsatellite loci and for each genotype using 10 microsatellite primer pairs. Between varieties genetic relationship was estimated. The number of alleles per microsatellite loci was 4 to 8, averaging 6.6 alleles per locus. Higher heterozygosity (H) was found in traditional varieties (HTV = 0.72) than in improved varieties (HIV = 0.42), and 68% of the total microsatellite alleles were found exclusively in the traditional varieties. Genetic diversity, represented by cluster analysis, indicated three different genetic groups based on their origin. Genetic relationship estimates based on the proportion of microsatellite loci with shared alleles indicated that the majority of traditional varieties were poorly related to the improved varieties. We also discuss the more efficient use of the available genetic diversity in future programs involving genetic crosses. |
| format | Journal Article |
| id | CGSpace43485 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2007 |
| publishDateRange | 2007 |
| publishDateSort | 2007 |
| publisher | FapUNIFESP |
| publisherStr | FapUNIFESP |
| record_format | dspace |
| spelling | CGSpace434852024-11-15T08:52:58Z Genetic diversity analysis of Cuban traditional rice (Oryza sativa L.) varieties based on microsatellite markers Álvarez, A. Fuentes, J.L Puldon, V Gómez, P.J. Mora, L Duque E., Myriam Cristina Gallego Sánchez, Gerardo J. Tohme, Joseph M. oryza sativa rice varieties genetic variation microsatellites plant breeding arroz variedades variación genética microsatélites fitomejoramiento Microsatellite polymorphism was studied in a sample of 39 traditional rice (Oryza sativa L.) varieties and 11 improved varieties widely planted in Cuba. The study was aimed at assessing the extent of genetic variation in traditional and improved varieties and to establish their genetic relationship for breeding purposes. Heterozygosity was analyzed at each microsatellite loci and for each genotype using 10 microsatellite primer pairs. Between varieties genetic relationship was estimated. The number of alleles per microsatellite loci was 4 to 8, averaging 6.6 alleles per locus. Higher heterozygosity (H) was found in traditional varieties (HTV = 0.72) than in improved varieties (HIV = 0.42), and 68% of the total microsatellite alleles were found exclusively in the traditional varieties. Genetic diversity, represented by cluster analysis, indicated three different genetic groups based on their origin. Genetic relationship estimates based on the proportion of microsatellite loci with shared alleles indicated that the majority of traditional varieties were poorly related to the improved varieties. We also discuss the more efficient use of the available genetic diversity in future programs involving genetic crosses. 2007 2014-09-24T08:42:12Z 2014-09-24T08:42:12Z Journal Article https://hdl.handle.net/10568/43485 en Open Access FapUNIFESP |
| spellingShingle | oryza sativa rice varieties genetic variation microsatellites plant breeding arroz variedades variación genética microsatélites fitomejoramiento Álvarez, A. Fuentes, J.L Puldon, V Gómez, P.J. Mora, L Duque E., Myriam Cristina Gallego Sánchez, Gerardo J. Tohme, Joseph M. Genetic diversity analysis of Cuban traditional rice (Oryza sativa L.) varieties based on microsatellite markers |
| title | Genetic diversity analysis of Cuban traditional rice (Oryza sativa L.) varieties based on microsatellite markers |
| title_full | Genetic diversity analysis of Cuban traditional rice (Oryza sativa L.) varieties based on microsatellite markers |
| title_fullStr | Genetic diversity analysis of Cuban traditional rice (Oryza sativa L.) varieties based on microsatellite markers |
| title_full_unstemmed | Genetic diversity analysis of Cuban traditional rice (Oryza sativa L.) varieties based on microsatellite markers |
| title_short | Genetic diversity analysis of Cuban traditional rice (Oryza sativa L.) varieties based on microsatellite markers |
| title_sort | genetic diversity analysis of cuban traditional rice oryza sativa l varieties based on microsatellite markers |
| topic | oryza sativa rice varieties genetic variation microsatellites plant breeding arroz variedades variación genética microsatélites fitomejoramiento |
| url | https://hdl.handle.net/10568/43485 |
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