Conventional and new genetic resources for an eggplant breeding revolution

Author:

Gramazio Pietro1ORCID,Alonso David1ORCID,Arrones Andrea1ORCID,Villanueva Gloria1ORCID,Plazas Mariola1,Toppino Laura2ORCID,Barchi Lorenzo3ORCID,Portis Ezio3ORCID,Ferrante Paola4ORCID,Lanteri Sergio3ORCID,Rotino Giuseppe Leonardo2ORCID,Giuliano Giovanni4ORCID,Vilanova Santiago1ORCID,Prohens Jaime1ORCID

Affiliation:

1. Instituto de Conservación y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València , Camino de Vera 14, 46022 Valencia , Spain

2. CREA Research Centre for Genomics and Bioinformatics , Via Paullese 28, 26836 Montanaso Lombardo, LO , Italy

3. Dipartimento di Scienze Agrarie, Forestali e Alimentari (DISAFA), Plant Genetics, University of Turin , Largo P. Braccini 2, 10095 Grugliasco, TO , Italy

4. Agenzia Nazionale Per Le Nuove Tecnologie, L’energia e Lo Sviluppo Economico Sostenibile (ENEA), Casaccia Research Centre , Rome , Italy

Abstract

Abstract Eggplant (Solanum melongena) is a major vegetable crop with great potential for genetic improvement owing to its large and mostly untapped genetic diversity. It is closely related to over 500 species of Solanum subgenus Leptostemonum that belong to its primary, secondary, and tertiary genepools and exhibit a wide range of characteristics useful for eggplant breeding, including traits adaptive to climate change. Germplasm banks worldwide hold more than 19 000 accessions of eggplant and related species, most of which have yet to be evaluated. Nonetheless, eggplant breeding using the cultivated S. melongena genepool has yielded significantly improved varieties. To overcome current breeding challenges and for adaptation to climate change, a qualitative leap forward in eggplant breeding is necessary. The initial findings from introgression breeding in eggplant indicate that unleashing the diversity present in its relatives can greatly contribute to eggplant breeding. The recent creation of new genetic resources such as mutant libraries, core collections, recombinant inbred lines, and sets of introgression lines will be another crucial element and will require the support of new genomics tools and biotechnological developments. The systematic utilization of eggplant genetic resources supported by international initiatives will be critical for a much-needed eggplant breeding revolution to address the challenges posed by climate change.

Funder

Conselleria d’Innovació, Universitats, Ciència i Societat Digital

MCIN/AEI

ERDF

European Union NextGenerationEU/PRTR

European Union’s Horizon 2020 Research and Innovation Programme

European Union Next-Generation EU

Spanish Ministerio de Ciencia e Innovación

Spanish Ministerio de Ciencia, Innovación y Universidades

Publisher

Oxford University Press (OUP)

Subject

Plant Science,Physiology

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