학술논문
Analysis of >3400 worldwide eggplant accessions reveals two independent domestication events and multiple migration‐diversification routes.
Document Type
Article
Author
Barchi, Lorenzo; Aprea, Giuseppe; Rabanus‐Wallace, M. Timothy; Toppino, Laura; Alonso, David; Portis, Ezio; Lanteri, Sergio; Gaccione, Luciana; Omondi, Emmanuel; van Zonneveld, Maarten; Schafleitner, Roland; Ferrante, Paola; Börner, Andreas; Stein, Nils; Díez, Maria José; Lefebvre, Veronique; Salinier, Jérémy; Boyaci, Hatice Filiz; Finkers, Richard; Brouwer, Matthijs
Source
Subject
*EGGPLANT
*DATABASES
*SINGLE nucleotide polymorphisms
*GENOTYPES
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Language
ISSN
0960-7412
Abstract
SUMMARY: Eggplant (Solanum melongena) is an important Solanaceous crop, widely cultivated and consumed in Asia, the Mediterranean basin, and Southeast Europe. Its domestication centers and migration and diversification routes are still a matter of debate. We report the largest georeferenced and genotyped collection to this date for eggplant and its wild relatives, consisting of 3499 accessions from seven worldwide genebanks, originating from 105 countries in five continents. The combination of genotypic and passport data points to the existence of at least two main centers of domestication, in Southeast Asia and the Indian subcontinent, with limited genetic exchange between them. The wild and weedy eggplant ancestor S. insanum shows admixture with domesticated S. melongena, similar to what was described for other fruit‐bearing Solanaceous crops such as tomato and pepper and their wild ancestors. After domestication, migration and admixture of eggplant populations from different regions have been less conspicuous with respect to tomato and pepper, thus better preserving 'local' phenotypic characteristics. The data allowed the identification of misclassified and putatively duplicated accessions, facilitating genebank management. All the genetic, phenotypic, and passport data have been deposited in the Open Access G2P‐SOL database, and constitute an invaluable resource for understanding the domestication, migration and diversification of this cosmopolitan vegetable. Significance Statement: Genotypic, passport and geographical origin data from 3499 worldwide accessions of eggplant and its wild relatives were collected, curated, analyzed, and deposited in a 'one stop shop' Open Access database. The identified polymorphisms and georeferencing data led to the identification of two main centers of domestication of eggplant – in Southeast Asia and the Indian subcontinent – and of its migration and diversification routes. Identification of putatively duplicated and misclassified accessions will facilitate genebank management. [ABSTRACT FROM AUTHOR]