Introduction of genotypic effects into GeneSys-Rape: the example of height and male sterility

The aim of this study was to introduce effects of rape genotypes on gene flow between rape populations into the existing GeneSys- Rape model and to simulate the influence of existing rapeseed cultivars on gene flow between rapeseed populations in time and in space. The GeneSys- Rape input variables...

Full description

Saved in:
Bibliographic Details
Published in:Agriculture, ecosystems & environment ecosystems & environment, 2005, Vol.108 (4), p.318-328
Main Authors: Fargue, A., Colbach, N., Meynard, J.-M.
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
Brassica oleracea
Brassica rapa
Breeding criteria
Coexistence
cropping sequence
Cropping systems
cultivars
Ecology, environment
Fundamental and applied biological sciences. Psychology
Gene flow
General agroecology
General agroecology. Agricultural and farming systems. Agricultural development. Rural area planning. Landscaping
General agronomy. Plant production
Generalities. Agricultural and farming systems. Agricultural development
genotype-environment interaction
Life Sciences
Oilseed rape
plant breeding
pollen flow
rapeseed
Rapeseed populations
Semi-dwarf
Varietal association
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The aim of this study was to introduce effects of rape genotypes on gene flow between rape populations into the existing GeneSys- Rape model and to simulate the influence of existing rapeseed cultivars on gene flow between rapeseed populations in time and in space. The GeneSys- Rape input variables are the regional field pattern, crop successions, cultivation techniques and genotype of cropped cultivars. The main output variables are, for each year and plot, the number of individuals per square meter and the genotype proportions in the harvest. Results comprised: (1) sensitivity analyses of the model to cultivar characteristics, which showed the importance of pollen emission on gene flow in space, and of height on gene flow in time and (2) a study of the effect of genotype and of its interaction with cropping system on harvest contamination rate, using simulations with semi-dwarf and varietal associations in different cropping systems. These confirmed the results of the sensitivity analysis and showed that both rapeseed types are of interest to limit gene flow, each in a different situation.
ISSN:0167-8809
1873-2305
0167-8809
DOI:10.1016/j.agee.2005.01.010