Analysis of cadmium tolerance in Arabidopsis halleri, a closely related hyperaccumulator species to Arabidopsis thaliana

Abstract : Cadmium (Cd) tolerance seems to be a constitutive species-level trait in Arabidopsis halleri. In order to identify genes potentially implicated in Cd tolerance, a backcross (BC1) segregating population was produced from crosses between A. halleri ssp. halleri and its closest non-tolerant relative A. lyrata ssp. petraea. The most sensitive and tolerant genotypes of the BC1 were analysed on a transcriptome-wide scale by cDNAamplified fragment length polymorphism (AFLP). A hundred and thirty-four genes expressed more in the root of tolerant genotypes than in sensitive genotypes were identified. Most of the identified genes showed no regulation in their expression when exposed to Cd in a hydroponic culture medium and belonged to diverse functional classes, including reactive oxygen species (ROS) detoxification, cellular repair, metal sequestration, water transport, signal transduction, transcription regulation, and protein degradation, which are discussed
Type de document :
Article dans une revue
Journal of Experimental Botany, Oxford University Press (OUP), 2006, 57, pp.2967-2983
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-00181655
Contributeur : Jean-François Arnaud <>
Soumis le : mercredi 24 octobre 2007 - 11:23:01
Dernière modification le : jeudi 11 janvier 2018 - 06:18:34

Identifiants

  • HAL Id : hal-00181655, version 1

Collections

Citation

A. R. Craciun, M. Courbot, F. Bourgis, P. Salis, P. Saumitou-Laprade, et al.. Analysis of cadmium tolerance in Arabidopsis halleri, a closely related hyperaccumulator species to Arabidopsis thaliana. Journal of Experimental Botany, Oxford University Press (OUP), 2006, 57, pp.2967-2983. 〈hal-00181655〉

Partager

Métriques

Consultations de la notice

62