Persistence of oilseed rape (Brassica napus L.) outside of cultivated fields - Archive ouverte HAL
Article Dans Une Revue TAG Theoretical and Applied Genetics Année : 2001

Persistence of oilseed rape (Brassica napus L.) outside of cultivated fields

Résumé

It is widely assumed that most cultivated plants cannot persist in natural or semi-natural habitats. Most people thus assume that the plants growing outside of fields (in particular oilseed rape along roadsides) find their origins in the current or previous year’s cultivation of that crop. One consequence of this assumption is that the identity of plants growing on road verges is thought to reflect one of the cultivars currently or recently cultivated, while another consequence is the widespread belief that transgenic plants can be simply managed and controlled by stopping their cultivation. Our work shows that this assumption is false. We identify relict plants of a now unmarketable cultivar type of oilseed rape which have persisted in a semi-natural habitat (road verges) for at least 8 years according to farmer surveys in the studied area. More generally, we confirm that the dynamics of the feral oilseed rape plants of road verges is more complex than those resulting from spillage from agricultural machines or from neighbouring arable fields cultivated the previous year. Within the scope of transgenic oilseed rape cultivation, these results suggest that more studies on the dynamics of feral oilseed rape are needed in order to assess more precisely the risks of its invasiveness and its potential impact on genetic pollution between GM fields and non-GM fields.
Fichier principal
Vignette du fichier
pessel2001.pdf (148.44 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04373858 , version 1 (01-01-2025)

Identifiants

Citer

Fabrice Pessel, Jane Lecomte, Véronique Emeriau, Mohammed Krouti, Antoine Messéan, et al.. Persistence of oilseed rape (Brassica napus L.) outside of cultivated fields. TAG Theoretical and Applied Genetics, 2001, 102 (6-7), pp.841-846. ⟨10.1007/s001220100583⟩. ⟨hal-04373858⟩
8 Consultations
0 Téléchargements

Altmetric

Partager

More