The use of the model species Arabidopsis halleri towards phytoextraction of cadmium polluted soils

Meyer, Claire-Lise; Verbruggen, Nathalie

doi:10.1016/j.nbt.2012.07.009

Cited by 56 publications

(10 citation statements)

References 75 publications

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“…Besides Arabidopsis and Brassica species, other Brassicaceae taxa have also been investigated for various aspects in plant biology, such as biotic and abiotic stress tolerance, genome evolution, self-incompatibility, morphological studies, and so on. To date, this family contains abundant genetic and genomic resources including 19 publicly available genome sequences ( Gong et al 2005 ; Amasino 2009 ; Mummenhoff et al 2009 ; Dassanayake et al 2011 ; Hu et al 2011 ; Rushworth et al 2011 ; Claire-Lise and Nathalie 2012 ; Wu et al 2012 ; Haudry et al 2013 ; Slotte et al 2013 ; Verbruggen et al 2013 ; Anderson et al 2014 ; Halimaa et al 2014 ; Vekemans et al 2014 ). In addition, Brassicaceae experienced whole-genome duplications and organismal radiation in its early evolutionary history ( Vision et al 2000 ; Simillion et al 2002 ; Henry et al 2006 ; Schranz and Mitchell-Olds 2006 ; Couvreur et al 2010 ; Edger et al 2015 ), providing great opportunities to investigate these important evolutionary processes.…”

Section: Introductionmentioning

confidence: 99%

Resolution of Brassicaceae Phylogeny Using Nuclear Genes Uncovers Nested Radiations and Supports Convergent Morphological Evolution

et al. 2015

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Brassicaceae is one of the most diverse and economically valuable angiosperm families with widely cultivated vegetable crops and scientifically important model plants, such as Arabidopsis thaliana. The evolutionary history, ecological, morphological, and genetic diversity, and abundant resources and knowledge of Brassicaceae make it an excellent model family for evolutionary studies. Recent phylogenetic analyses of the family revealed three major lineages (I, II, and III), but relationships among and within these lineages remain largely unclear. Here, we present a highly supported phylogeny with six major clades using nuclear markers from newly sequenced transcriptomes of 32 Brassicaceae species and large data sets from additional taxa for a total of 55 species spanning 29 out of 51 tribes. Clade A consisting of Lineage I and Macropodium nivale is sister to combined Clade B (with Lineage II and others) and a new Clade C. The ABC clade is sister to Clade D with species previously weakly associated with Lineage II and Clade E (Lineage III) is sister to the ABCD clade. Clade F (the tribe Aethionemeae) is sister to the remainder of the entire family. Molecular clock estimation reveals an early radiation of major clades near or shortly after the Eocene–Oligocene boundary and subsequent nested divergences of several tribes of the previously polytomous Expanded Lineage II. Reconstruction of ancestral morphological states during the Brassicaceae evolution indicates prevalent parallel (convergent) evolution of several traits over deep times across the entire family. These results form a foundation for future evolutionary analyses of structures and functions across Brassicaceae.

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Section: Introductionmentioning

confidence: 99%

Resolution of Brassicaceae Phylogeny Using Nuclear Genes Uncovers Nested Radiations and Supports Convergent Morphological Evolution

et al. 2015

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“…These are two orders of magnitude higher than other, non-accumulating, species generally accumulate (Reeves and Brooks, 1983; McGrath et al, 1993; Brown et al, 1995; Lombi et al, 2000). Next to N. caerulescens, Arabidopsis halleri is developed as model metal hyperaccumulator (Meyer and Verbruggen, 2012). This species is also hypertolerant to Zn and Cd, and a strong Zn hyperaccumulator, but less of a Cd hyperaccumulator and not known to be adapted to Ni.…”

Section: Introductionmentioning

confidence: 99%

A comprehensive set of transcript sequences of the heavy metal hyperaccumulator Noccaea caerulescens

et al. 2014

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Noccaea caerulescens is an extremophile plant species belonging to the Brassicaceae family. It has adapted to grow on soils containing high, normally toxic, concentrations of metals such as nickel, zinc, and cadmium. Next to being extremely tolerant to these metals, it is one of the few species known to hyperaccumulate these metals to extremely high concentrations in their aboveground biomass. In order to provide additional molecular resources for this model metal hyperaccumulator species to study and understand the mechanism of adaptation to heavy metal exposure, we aimed to provide a comprehensive database of transcript sequences for N. caerulescens. In this study, 23,830 transcript sequences (isotigs) with an average length of 1025 bp were determined for roots, shoots and inflorescences of N. caerulescens accession “Ganges” by Roche GS-FLEX 454 pyrosequencing. These isotigs were grouped into 20,378 isogroups, representing potential genes. This is a large expansion of the existing N. caerulescens transcriptome set consisting of 3705 unigenes. When translated and compared to a Brassicaceae proteome set, 22,232 (93.2%) of the N. caerulescens isotigs (corresponding to 19,191 isogroups) had a significant match and could be annotated accordingly. Of the remaining sequences, 98 isotigs resembled non-plant sequences and 1386 had no significant similarity to any sequence in the GenBank database. Among the annotated set there were many isotigs with similarity to metal homeostasis genes or genes for glucosinolate biosynthesis. Only for transcripts similar to Metallothionein3 (MT3), clear evidence for an additional copy was found. This comprehensive set of transcripts is expected to further contribute to the discovery of mechanisms used by N. caerulescens to adapt to heavy metal exposure.

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“…Sedum alfredii Hance (Crassulaceae), found in contaminated soils of Zheijiang Province, China, has been identified as a zinc/cadmium (Zn/Cd) co‐hyperaccumulator (Yang et al ., , ; Tian et al ., ), and is one of only a few nonbrassica species to have demonstrated both Zn and Cd hyperaccumulation (Lu et al ., ; Kramer, ; Claire‐Lise & Nathalie, ). This plant species accumulates up to 2.9% Zn (dry weight, DW) in shoot without exhibiting toxicity symptoms (Yang et al ., ; Tian et al ., ).…”

Section: Introductionmentioning

confidence: 99%

Efficient xylem transport and phloem remobilization of Zn in the hyperaccumulator plant species Sedum alfredii

et al. 2013

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SummarySedum alfredii is one of a few species known to hyperaccumulate zinc (Zn) and cadmium (Cd). Xylem transport and phloem remobilization of Zn in hyperaccumulating (HP) and nonhyperaccumulating (NHP) populations of S. alfredii were compared.Micro-X-ray fluorescence (l-XRF) images of Zn in the roots of the two S. alfredii populations suggested an efficient xylem loading of Zn in HP S. alfredii, confirmed by the seven-fold higher Zn concentrations detected in the xylem sap collected from HP, when compared with NHP, populations. Zn was predominantly transported as aqueous Zn (> 55.9%), with the remaining proportion (36.7-42.3%) associated with the predominant organic acid, citric acid, in the xylem sap of HP S. alfredii.The stable isotope 68 Zn was used to trace Zn remobilization from mature leaves to new growing leaves for both populations. Remobilization of 68 Zn was seven-fold higher in HP than in NHP S. alfredii. Subsequent analysis by l-XRF, combined with LA-ICPMS (laser ablationinductively coupled plasma mass spectrometry), confirmed the enhanced ability of HP S. alfredii to remobilize Zn and to preferentially distribute the metal to mesophyll cells surrounding phloem in the new leaves. The results suggest that Zn hyperaccumulation by HP S. alfredii is largely associated with enhanced xylem transport and phloem remobilization of the metal. To our knowledge, this report is the first to reveal enhanced remobilization of metal by phloem transport in hyperaccumulators.

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The use of the model species Arabidopsis halleri towards phytoextraction of cadmium polluted soils

Cited by 56 publications

References 75 publications

Resolution of Brassicaceae Phylogeny Using Nuclear Genes Uncovers Nested Radiations and Supports Convergent Morphological Evolution

Resolution of Brassicaceae Phylogeny Using Nuclear Genes Uncovers Nested Radiations and Supports Convergent Morphological Evolution

A comprehensive set of transcript sequences of the heavy metal hyperaccumulator Noccaea caerulescens

Efficient xylem transport and phloem remobilization of Zn in the hyperaccumulator plant species Sedum alfredii

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