Intensive study site: INRAE chestnut germplasm collection (Domaine de la Grande Ferrade, Villenave d'Ornon)

This intensive study plot is located in Villenave d’Ornon, near Bordeaux in southwestern France (44.788319 N, -0.577062 E). It includes the INRAE chestnut germplasm collection and all isolated trees located in the immediate surroundings (< 1 km from the INRAE research site). The germplasm collection is distributed in two nearby orchards. The first orchard was planted in 1970 and comprises 29 widely spaced trees on 2.3 ha while the second orchard was planted in 1990 and includes 211 trees on 3.5 ha. In contrast to the Asiatic chestnut species, the European chestnut is very vulnerable to blight and ink diseases originating from Asia (Gonthier and Robin 2019). Cross-breeding between Asiatic species and European chestnut has been carried out to select new tolerant hybrid cultivars (Barreneche et al. 2019), some of which have been massively planted for fruit production. Hence, the two orchards include different taxa: 117 C. sativa (European chestnut), 22 C. crenata (Japanese chestnut), 20 C. mollissima (Chinese chestnut) and 81 interspecific hybrids, including 56 C. sativa x C. crenata. In some cases, both parental trees and their offspring are found in the orchards. Most trees are grafted on both rootstocks: Marsol (CA07) or Maraval (CA74). Pollination and hence pollen limitation are still poorly understood in chestnuts (Larue et al. 2021a).

Simple

Date ( Création )
2021-03-31T00:00:00
Forme de la présentation
Numeric table
But
To investigate these topics, the site described above, which is fairly isolated from other chestnut pollen sources, seemed appropriate. Our ultimate goal is to develop a spatially explicit individual-based mating model to investigate intra- and interspecific mating events with pollen coming from inside and outside of the INRAE germplasm collection. This model will allow a simultaneous estimation of all parameters influencing not only male but also female fecundity and pollen dispersal using a Bayesian approach for random effect mating model (Klein et al. 2008, 2011; Chybicki et al. 2021). Many efforts were made to gather a comprehensive data set as input for this model and for other studies. All trees of the intensive study plot were genotyped and their phenotypes were precisely described, including floral characters. We scored their phenology with a newly developed BBCH scale adapted for chestnut (Larue et al. 2021b), and we estimated seed-set during two consecutive years.
Etat
Completed
INRAE - Biogeco - Larue Clément
69 route d'Arcachon Cestas 33610.0 France

0033535385314
Mots clés ( Thème )
  • Genetic resources / Genotyping / Phenotyping / Modeling male and female fecundity
Mots clés ( Localisation )
  • France / Nouvelle-Aquitaine
Mots clés ( Discipline )
  • Ecology / Genetics / Pollination ecology
Limitation d'utilisation
Licence Ouverte/Open License Version 2.0
Contraintes d'accès
Autres restrictions
Langue
English
N
S
E
W


Date de début
2018-06-01
Date de fin
2019-11-29

Etendue verticale

Espace de nommage
EPSG
Version
7.4
Format (encodage)
  • ( )

Ressource en ligne
Web application
Ressource en ligne
original_file_metadata.xlsx ( WWW:DOWNLOAD-1.0-http--download )

Original File Metadata

Niveau
Jeu de données

gmd:MD_Metadata

Identifiant de la fiche
02c5ca07-1536-4f89-9a0c-9e8d44a91287 XML
Langue
eng
Jeu de caractères
Utf8
Type de ressource
Jeu de données
Date des métadonnées
2021-09-10T12:47:31
Nom du standard de métadonnées
ISO 19115:2003/19139
Version du standard de métadonnées
1.0
INRAE - Biogeco - Larue Clément
69 route d'Arcachon Cestas 33610.0 France

0033535385314

Aperçus

Fourni par

Ressources associées

Not available