National Research Council of Italy

Institute of Biosciences and BioResources

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Secondary domestication and adaptive introgression guided the complex evolutionary history of European common bean

Roberto Papa 
Università Politecnica delle Marche - Italy

July 11, 2022 (11:30-12:30)
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Abstract: Following domestication, humans have disseminated crops over vast geographic regions. After 1492, the common bean was successfully introduced in Europe. Using whole-genome profiling and metabolic fingerprinting combined with phenotypic characterization, we found that the first common beans cultigen introduced in Europe were of Andean origin, after the Francisco Pizarro’s expedition to northern Peru in 1529, and we identified the effects of hybridization, selection and recombination in shaping the genomic diversity of the European common bean in parallel with political constrains. There was clear evidence of adaptive introgression into the Mesoamerican-derived European genotypes, with 44 Andean introgressed genomic segments shared by more than 90% of the European accessions and distributed on all chromosomes except for PvChr11. Genomic scans for signatures of selection highlighted the role of genes related to flowering and genes relevant to environmental adaptation, suggesting that introgression was crucial for adapting a tropical crop to temperate regions of Europe

Author's Info: PAPA

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Istituto di Bioscienze e Biorisorse (IBBR/CNR)
Via G. Amendola 165/A, I-70126 Bari (Italy)
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