Titre :

Elucidation of the genetic architecture of self-incompatibility in olive: evolutionary consequences and perspectives for orchard management

Auteur(s) :

Saumitou-Laprade, Pierre [Auteur]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]
Philippe, Vernet [Auteur]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]
Vekemans, Xavier [Auteur]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]
Billiard, Sylvain [Auteur]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]
Gallina, Sophie [Auteur]
Évolution, Écologie et Paléontologie (Evo-Eco-Paleo) - UMR 8198 [Evo-Eco-Paléo (EEP)]
Laila, Essalouh [Auteur]
Amélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
Ali, Mhaïs [Auteur]
Amélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
Abdelmajid, Moukhli [Auteur]
Ahmed, El Bakkali [Auteur]
Gianni, Barcaccia [Auteur]
Università degli Studi di Padova = University of Padua [Unipd]
Fiammetta, Alagna [Auteur]
Università degli Studi di Perugia = University of Perugia [UNIPG]
Roberto, Mariotti [Auteur]
Università degli Studi di Perugia = University of Perugia [UNIPG]
Nicolò G. M., Cultrera [Auteur]
Università degli Studi di Perugia = University of Perugia [UNIPG]
Saverio, Pandolfi [Auteur]
Università degli Studi di Perugia = University of Perugia [UNIPG]
Martina, Rossi [Auteur]
Università degli Studi di Perugia = University of Perugia [UNIPG]
Bouchaïb, Khadari [Auteur]
Amélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
Luciana, Baldoni [Auteur]
Università degli Studi di Perugia = University of Perugia [UNIPG]

Titre de la revue :

Evolutionary Applications

Pagination :

867–880

Éditeur :

Blackwell

Date de publication :

2017

ISSN :

1752-4563

Mot(s)-clé(s) :

Olea europaea L

Mot(s)-clé(s) en anglais :

Diallelic self-incompatibility system
Oleaceae
Sporophytic genetic control
Homomorphic system
Olive diversity
Plant mating systems
Trans-generic conservation of SI functionality

Discipline(s) HAL :

Sciences du Vivant [q-bio]/Génétique/Génétique des populations [q-bio.PE]

Résumé en anglais : [en]

The olive (Olea europaea L.) is a typical important perennial crop species for which the genetic determination and even functionality of self-incompatibility (SI) are still largely unresolved. It is still not known whether ...
Lire la suite >The olive (Olea europaea L.) is a typical important perennial crop species for which the genetic determination and even functionality of self-incompatibility (SI) are still largely unresolved. It is still not known whether SI is under gametophytic or sporophytic genetic control, yet fruit production in orchards depends critically on successful ovule fertilization. We studied the genetic determination of SI in olive in light of recent discoveries in other genera of the Oleaceae family. Using intra- and inter-specific stigma tests on 89 genotypes representative of species-wide olive diversity and the compatibility/incompatibility reactions of progeny plants from controlled crosses, we confirmed that O. europaea shares the same homomorphic diallelic self-incompatibility (DSI) system as the one recently identified in Phillyrea angustifolia and Fraxinus ornus. SI is sporophytic in olive. The incompatibility response differs between the two SI groups in terms of how far pollen tubes grow before growth is arrested within stigma tissues. As a consequence of this DSI system, the chance of cross-incompatibility between pairs of varieties in an orchard is high (50%) and fruit production may be limited by the availability of compatible pollen. The discovery of the DSI system in O. europaea will undoubtedly offer opportunities to optimize fruit production.Lire moins >

Langue :

Anglais

Vulgarisation :

Non

Projet ANR :

Agricultural Sciences for sustainable Development
Les transitions de systèmes de reproduction chez les angiosperms et leurs conséquences génomiques

Commentaire :

UMR AGAP - équipe AFEF - Architecture et fonctionnement des espèces fruitières

Collections :

• Évolution, Écologie et Paléontologie (Evo Eco Paleo) - UMR 8198

Source :

Harvested from HAL