Landscape genetics, adaptive diversity and population structure in Phaseolus vulgaris
| Autor: | Elisa Bellucci, Paul Gepts, Roberto Papa, Laura Nanni, Eleonora Biagetti, Andrea Carboni, Giovanna Attene, Monica Rodriguez, Elena Bitocchi, Domenico Rau |
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| Rok vydání: | 2015 |
| Předmět: |
0301 basic medicine
Chloroplasts Physiology Plant Science Polymorphism Single Nucleotide 03 medical and health sciences Genetic variation Biomass Domestication Local adaptation Genetics Cell Nucleus Phaseolus Genetic diversity biology Geography Ecology food and beverages Genetic Variation biology.organism_classification Adaptation Physiological SNP genotyping 030104 developmental biology Archaeology Genetic structure Seeds Adaptation |
| Zdroj: | The New phytologist. 209(4) |
| ISSN: | 1469-8137 |
| Popis: | Here we studied the organization of genetic variation of the common bean (Phaseolus vulgaris) in its centres of domestication. We used 131 single nucleotide polymorphisms to investigate 417 wild common bean accessions and a representative sample of 160 domesticated genotypes, including Mesoamerican and Andean genotypes, for a total of 577 accessions. By analysing the genetic spatial patterns of the wild common bean, we documented the existence of several genetic groups and the occurrence of variable degrees of diversity in Mesoamerica and the Andes. Moreover, using a landscape genetics approach, we demonstrated that both demographic processes and selection for adaptation were responsible for the observed genetic structure. We showed that the study of correlations between markers and ecological variables at a continental scale can help in identifying local adaptation genes. We also located putative areas of common bean domestication in Mesoamerica, in the Oaxaca Valley, and the Andes, in southern Bolivia-northern Argentina. These observations are of paramount importance for the conservation and exploitation of the genetic diversity preserved within this species and other plant genetic resources. |
| Databáze: | OpenAIRE |
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