Dje, Y. and Forcioli, D. and Ater, M. and et al, . (1999) Assessing population genetic structure of sorghum landraces from North-western Morocco using allozyme and microsatellite markers. Theoretical and Applied Genetics, 99 (1-2). pp. 157-163.
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Abstract
The level of genetic diversity and the population genetic structure of sorghum landraces from North-western Morocco have been investigated based on direct field-sampling using both allozyme and microsatellite markers. As expected, microsatellite markers showed a much higher degree of polymorphism than allozymes, but relative measures of genetic structure such as Wright’s inbreeding coefficient F IS and Nei’s coefficient of genetic differentiation G ST were similar for the two sets of markers. Substantial inbreeding was found to occur within fields, which confirms that sorghum is predominantly selfing under cultivation. Most of the genetic diversity in Moroccan landraces occurs within fields (more than 85%), as opposed to among fields or among regions, a result which contrasts to those of studies based on accessions from germplasm collections. It is suggested that individual fields of sorghum constitute valuable units of conservation in the context of in situ conservation practices.
| Item Type: | Article |
|---|---|
| Additional Information: | We thank P. Meerts, A. Moquet and I. Zoro Bi for comments on the manuscript. This study has been granted by the &&UniversiteH Libre de Bruxelles'' (Belgium) and the &&UniversiteH Abdelmalek Essaadi-TeHtouan'' (Morocco) in the framework of bilateral scienti"c collaboration, and by AUPELF, as a research grant to D. Forcioli. The scholarship for Y. Dje` was provided by the government of Co(te d'Ivoire |
| Uncontrolled Keywords: | Key words Allozymes, Genetic diversity, Genetic resources, Microsatellites, Sorghum |
| Author Affiliation: | Université Libre de Bruxelles, Laboratoire de Génétique et d'Ecologie Végétales, Belgium. |
| Subjects: | Crop Improvement |
| Divisions: | Sorghum |
| Depositing User: | Mr Arbind Seth |
| Date Deposited: | 27 Aug 2013 06:23 |
| Last Modified: | 27 Aug 2013 06:23 |
| Official URL: | http://dx.doi.org/10.1007/s001220051220 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/11551 |
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