How mitochondrial DNA diversity can help to understand the dynamics of wild-cultivated complexes. The case of Medicago sativa in Spain
| Autor: | M. H. Muller, Joëlle Ronfort, Sylvain Santoni, Jean-Marie Prosperi |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
0106 biological sciences
0303 health sciences Mitochondrial DNA Seed dispersal food and beverages 15. Life on land Biology 01 natural sciences Gene flow 03 medical and health sciences Evolutionary biology Botany Genetics Genetic exchange Gene pool Restriction fragment length polymorphism Medicago sativa Ecology Evolution Behavior and Systematics 030304 developmental biology 010606 plant biology & botany |
| Zdroj: | Molecular Ecology. 10:2753-2763 |
| ISSN: | 1365-294X 0962-1083 |
| DOI: | 10.1046/j.0962-1083.2001.01400.x |
| Popis: | In order to clarify the relationships (genetic exchange and shared ancestry) between natural and cultivated populations of alfalfa (Medicago sativa L.) in Spain, we investigated the patterns of mitochondrial DNA variation (characterized through restriction fragment length polymorphism) for 248 individuals in seven natural and six cultivated populations of this species. Mitochondrial variation was evidenced in both natural and cultivated populations of M. sativa. Among the seven mitotypes idengified in the species, two were specific of the natural populations, a result attesting the fact that the Spanish wild form of M. sativa is an original genetic pool compared to the cultivated one. Other mitotypes were observed in both natural and cultivated populations, suggesting the occurrence of gene flow through seeds from cultivated towards natural populations. Comparisons with previously gathered nuclear and phenotypic data give insights into the different evolutionary forces acting on the different kinds of Spanish natural populations examined so far. |
| Databáze: | OpenAIRE |
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