Plasticity in vegetative growth over contrasted growing sites of an F1 Olive tree progeny during its juvenile phase
| Autor: | Nathalie Moutier, Bouchaib Khadari, Lorenzo León, Sébastien Martinez, Evelyne Costes, Gilbert Garcia, Angelina Belaj, Inès Ben Sadok, Raúl de la Rosa |
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| Přispěvatelé: | Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro), Institut de l’olivier de Sfax, Ctr Alameda Obispo, Instituto de Investigación y Formación Agraria y Pesquera (IFAPA), Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Instituto Andaluz de Investigación y Formación Agraria y Pesquera (IFAPA), Architecture et Fonctionnement des Espèces Fruitières [AGAP] (AFEF), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
0106 biological sciences
phase juvénile media_common.quotation_subject lcsh:Medicine Biology 01 natural sciences 03 medical and health sciences olivier Olea [SDV.BV]Life Sciences [q-bio]/Vegetal Biology Plant breeding Gene–environment interaction lcsh:Science 030304 developmental biology media_common 2. Zero hunger 0303 health sciences Multidisciplinary Vegetal Biology architecture de l'arbre Models Genetic Ecology lcsh:R 15. Life on land Heritability Olive trees interaction génotype environnement Plant Breeding Tree (data structure) Seedlings Trait croissance des arbres Gene-Environment Interaction lcsh:Q Habit adaptation au changement climatique Fruit tree Biologie végétale Research Article 010606 plant biology & botany |
| Zdroj: | Plos One 6 (10), . (2015) PLoS ONE PLoS ONE, Public Library of Science, 2015, 10 (6), ⟨10.1371/journal.pone.0127539⟩ PLoS ONE, Vol 10, Iss 6, p e0127539 (2015) |
| ISSN: | 1932-6203 |
| Popis: | Climatic changes impact fruit tree growth and severely limit their production. Investigating the tree ability to cope with environmental variations is thus necessary to adapt breeding and management strategies in order to ensure sustainable production. In this study, we assessed the genetic parameters and genotype by environment interaction (GxE) during the early tree growth. One hundred and twenty olive seedlings derived from the cross 'Olivière' x 'Arbequina' were examined across two sites with contrasted environments, accounting for ontogenetic trends over three years. Models including the year of growth, branching order, environment, genotype effects, and their interactions were built with variance function and covariance structure of residuals when necessary. After selection of a model, broad sense heritabilities were estimated. Despite strong environmental effect on most traits, no GxE was found. Moreover, the internal structure of traits co-variation was similar in both sites. Ontogenetic growth variation, related to (i) the overall tree form and (ii) the growth and branching habit at growth unit scale, was not altered by the environment. Finally, a moderate to strong genetic control was identified for traits at the whole tree scale and at internode scale. Among all studied traits, the maximal internode length exhibited the highest heritability (H2 = 0.74). Considering the determinant role of this trait in tree architecture and its stability across environments, this study consolidates its relevance for breeding. |
| Databáze: | OpenAIRE |
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