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Gene expression differences between Noccaea caerulescens ecotypes help to identify candidate genes for metal phytoremediation

Title data

Halimaa, Pauliina ; Lin, Ya-Fen ; Ahonen, Viivi H. ; Blande, Daniel ; Clemens, Stephan ; Gyenesei, Attila ; Häikiö, Elina ; Kärenlampi, Sirpa O. ; Laiho, Asta ; Aarts, Mark G. M. ; Pursiheimo, Juha-Pekka ; Schat, Henk ; Schmidt, Holger ; Tuomainen, Marjo H. ; Tervahauta, Arja I.:
Gene expression differences between Noccaea caerulescens ecotypes help to identify candidate genes for metal phytoremediation.
In: Environmental Science & Technology. Vol. 48 (February 2014) Issue 6 . - pp. 3344-3353.
ISSN 0013-936X
DOI: https://doi.org/10.1021/es4042995

Abstract in another language

Populations of Noccaea caerulescens show tremendous differences in their capacity to hyperaccumulate and hypertolerate metals. To explore the differences that could contribute to these traits, we undertook SOLiD high-throughput sequencing of the root transcriptomes of three phenotypically well-characterized N. caerulescens accessions, i.e., Ganges, La Calamine, and Monte Prinzera. Genes with possible contribution to zinc, cadmium, and nickel hyperaccumulation and hypertolerance were predicted. The most significant differences between the accessions were related to metal ion (di-, trivalent inorganic cation) transmembrane transporter activity, iron and calcium ion binding, (inorganic) anion transmembrane transporter activity, and antioxidant activity. Analysis of correlation between the expression profile of each gene and the metal-related characteristics of the accessions disclosed both previously characterized (HMA4, HMA3) and new candidate genes (e.g., for nickel IRT1, ZIP10, and PDF2.3) as possible contributors to the hyperaccumulation/tolerance phenotype. A number of unknown Noccaea-specific transcripts also showed correlation with Zn(2+), Cd(2+), or Ni(2+) hyperaccumulation/tolerance. This study shows that N. caerulescens populations have evolved great diversity in the expression of metal-related genes, facilitating adaptation to various metalliferous soils. The information will be helpful in the development of improved plants for metal phytoremediation.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER121620
Keywords: hyperaccumulation; nicotianamine; organic acids; Noccaea caerulescens (Thlaspi caerulescens); RNAseq
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Plant Physiology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Plant Physiology > Chair Plant Physiology - Univ.-Prof. Dr. Stephan Clemens
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Result of work at the UBT: No
DDC Subjects: 500 Science
500 Science > 570 Life sciences, biology
500 Science > 580 Plants (Botany)
Date Deposited: 24 Apr 2015 11:55
Last Modified: 10 Apr 2018 11:05
URI: https://eref.uni-bayreuth.de/id/eprint/11345