Fooyontphanich K. auteur aut IRD Morcillo F. auteur aut IRD Amblard P. auteur aut IRD Collin Myriam auteur aut IRD Jantasuriyarat C. auteur aut IRD Verdeil J. L. auteur aut IRD Tangphatsornruang S. auteur aut IRD Tranbarger Timothy auteur aut IRD text bookSection eng text/pdf born digital access Knowledge of the cell separation processes underlying organ abscission is limited mainly to the eudicot model systems tomato and Arabidopsis, while less is known about the mechanisms in crop species in general, and monocots in particular. Here we describe a simple phenotypic screen for oil palm plant lines with delayed or non-abscising fruit. The phenotypic test was used on the two species of oil palm including Elaeis guineensis and E. oleifera, in addition to their interspecific hybrids, and hybrids backcrossed to E. guineensis. A large variation in abscission phenotypes was observed. Histological analysis revealed similarities and differences in the abscission zone (AZ) of E. guineensis and E. oleifera, and dominant traits were observed in the AZ of the interspecific crosses. The expression of abscission marker genes for a polygalacturonase (EgPG4) and an ethylene synthesis ACO synthase (EgACO) were monitored during abscission of a randomly selected set of plants and in a non-abscising individual identified by the phenotypic test. specialized 076 Wunsche J. N. ed. edt IRD Tranbarger Timothy ed. edt IRD 1119 97-104 Louvain ISHS 2016 International Horticultural Congress on Horticulture : Sustaining Lives, Livelihoods and Landscapes : International Symposia on Abscission Processes in Horticulture and Non-Destructive Assessment of Fruit Attributes, 29., Brisbane (AUS), 2014/08/17-22 1119 https://www.documentation.ird.fr/hor/fdi:010072213 9789462611177 [F A010072266] https://www.documentation.ird.fr/hor/fdi:010072213 https://www.documentation.ird.fr/intranet/publi/depot/2018-02-13/010072213.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2018-02-14 2023-06-14 fdi:010072213 fre