J. RONFORT results 8
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Genetic and Morphological Diversity in Spontaneous Populations of Brassica rapa : How Do Feral Populations Differ From Wild Ones?NARA Subscribed
Crop wild relatives are a valuable source of genetic material for improving cultivated crops. However, feral populations—self‐sustaining plants that have escaped cultivation—are often mistaken for wild relatives because they exhibit traits such as seed dispersal and dormancy, which resemble wild forms and support persistence in natural habitats. This study examined the genetic diversity, population structure, and morphology of...
Domestication history in the Medicago sativa species complex: inferences from nuclear sequence polymorphismNARA Subscribed
DNA sequence polymorphism carries genealogical information and allows for testing hypotheses on selection and population history, especially through coalescent‐based analysis. Understanding the evolutionary forces at work in plant domestication and subsequent selection is of critical importance for the management of genetic resources. In this study, we surveyed DNA sequence diversity at two assumed neutral nuclear loci in the...
Spatial structure of genetic variation and primary succession in the pioneer tree species Antirhea borbonica on La RéunionNARA Subscribed
In habitats where colonization and extinction are recurrent, the distribution of gene frequencies among patches of suitable habitat may reflect the age structure of different populations. In this study, we quantify population genetic structure for a pioneer tree species, Antirhea borbonica , in a chrono‐sequence of primary succession on the lava flows of the Piton de La Fournaise volcano (La Réunion). Using microsatellite loci...
Inferences from mitochondrial DNA patterns on the domestication history of alfalfa ( Medicago sativa )NARA Subscribed
The evolutionary history of a wild–cultivated complex is the outcome of different factors, among which are the domestication of the cultivated form, its geographical and demographic expansion, as well as gene flow between natural and cultivated populations. To clarify this history for alfalfa ( Medicago sativa ), we adopted a phylogeographical approach based on a sample of natural and cultivated populations of the M. sativa sp...
How mitochondrial DNA diversity can help to understand the dynamics of wild‐cultivated complexes. The case of Medicago sativa in SpainNARA Subscribed
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...
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