Comparative cDNA-AFLP analysis of Cd-tolerant and-sensitive genotypes derived from crosses between the Cd hyperaccumulator Arabidopsis halleri and Arabidopsis lyrata ssp. petraea
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 cDNA-amplified 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.
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CAX gene encoding cation exchange mediates enhanced Cd sequestration.
“In addition, CAX gene encoding cation exchange mediates enhanced Cd sequestration (Craciun et al., 2006; van de Mortel et al., 2008).”
From Plant hyperaccumulators: a state-of-the-art review on mechanism of heavy metal transport and sequestration (2025) · cites this paper as Craciun et al., 2006
Zn compartmentation and transport is efficiently mediated by overexpression of HMA3 gene coding P1B-ATPase T. caerulescens and A. halleri.
“Zn compartmentation and transport is efficiently mediated by overexpression of HMA3 gene coding P1B-ATPase T. caerulescens and A. halleri (Craciun et al., 2006; van de Mortel et al., 2008).”
From Plant hyperaccumulators: a state-of-the-art review on mechanism of heavy metal transport and sequestration (2025) · cites this paper as Craciun et al., 2006
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- Authors
- Craciun, A. R.
- Affiliations
- Université Libre de Bruxelles (BE)
- Corresponding author
- Craciun, A. R.
- Venue
- Journal of Experimental Botany
- Publisher
- Oxford University Press (OUP)
- Published
- 2006-08-07
- Volume
- 57
- Issue
- 12
- Pages
- 2967-2983
- ISSN
- 0022-0957 (ISSN-L)
- 1460-2431
- OpenAlex
- W2128262275
- Cited by
- 51
- References
- 81
- Citations by year
- 2025: 1 · 2024: 1 · 2021: 2 · 2020: 2 · 2019: 3 · 2018: 1 · 2017: 1 · 2016: 3 · 2015: 4 · 2014: 2 · 2013: 3 · 2012: 3
- FWCI
- 5.73
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Experimental Botany (publishedVersion)
- PubMed (publishedVersion)
- Dépôt institutionnel de l'Université libre de Bruxelles (Université Libre de Bruxelles) (submittedVersion)
- Funders
- European Commission
- Topics
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Stress Responses and Tolerance
- Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Aluminum toxicity and tolerance in plants and animals
- Keywords
- cadmium tolerance, Arabidopsis halleri, metal hyperaccumulation, differentially expressed genes, root transcriptome, reactive oxygen species scavenging, metal sequestration, water transport, signal transduction, transcriptional regulation, protein degradation, metal stress
- MeSH terms
- Cadmium, Crosses, Genetic, Genotype, Molecular Sequence Data, Polymorphism, Genetic, Signal Transduction, Arabidopsis, Sequence Analysis, DNA, DNA, Complementary, Gene Expression Regulation, Plant, Plant Roots, Hydroponics, Reverse Transcriptase Polymerase Chain Reaction, Gene Expression Profiling
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