Trade-off between genetic variation and ecological adaptation of metallicolous and non-metallicolous Noccaea and Thlaspi species

Maestri, Elena; Pirondini, Andrea; Visioli, Giovanna; Marmiroli, Nelson

doi:10.1016/j.envexpbot.2013.08.002

Cited by 8 publications

(7 citation statements)

References 73 publications

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“…N. caerulescens is a hyperaccumulator of zinc (Zn) on metalliferous as well as nonmetalliferous soils and of cadmium (Cd) on metalliferous soils (Reeves et al, 2001;Krämer, 2010), and its populations on serpentine soils are known to hyperaccumulate nickel (Ni; Reeves and Brooks, 1983;Reeves, 1988;Visioli et al, 2012;Maestri et al, 2013). N. caerulescens is a morphologically highly diverse species comprising at least two, but up to eight (http://www.…”

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confidence: 99%

Genome Structure of the Heavy Metal Hyperaccumulator Noccaea caerulescens and Its Stability on Metalliferous and Nonmetalliferous Soils

et al. 2015

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Noccaea caerulescens (formerly known as Thlaspi caerulescens), an extremophile heavy metal hyperaccumulator model plant in the Brassicaceae family, is a morphologically and phenotypically diverse species exhibiting metal tolerance and leaf accumulation of zinc, cadmium, and nickel. Here, we provide a detailed genome structure of the approximately 267-Mb N. caerulescens genome, which has descended from seven chromosomes of the ancestral proto-Calepineae Karyotype (n = 7) through an unusually high number of pericentric inversions. Genome analysis in two other related species, Noccaea jankae and Raparia bulbosa, showed that all three species, and thus probably the entire Coluteocarpeae tribe, have descended from the proto-Calepineae Karyotype. All three analyzed species share the chromosome structure of six out of seven chromosomes and an unusually high metal accumulation in leaves, which remains moderate in N. jankae and R. bulbosa and is extreme in N. caerulescens. Among these species, N. caerulescens has the most derived karyotype, with species-specific inversions on chromosome NC6, which grouped onto its bottom arm functionally related genes of zinc and iron metal homeostasis comprising the major candidate genes NICOTIANAMINE SYNTHASE2 and ZINC-INDUCED FACILITATOR-LIKE1. Concurrently, copper and organellar metal homeostasis genes, which are functionally unrelated to the extreme traits characteristic of N. caerulescens, were grouped onto the top arm of NC6. Compared with Arabidopsis thaliana, more distal chromosomal positions in N. caerulescens were enriched among more highly expressed metal homeostasis genes but not among other groups of genes. Thus, chromosome rearrangements could have facilitated the evolution of enhanced metal homeostasis gene expression, a known hallmark of metal hyperaccumulation.

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confidence: 99%

Genome Structure of the Heavy Metal Hyperaccumulator Noccaea caerulescens and Its Stability on Metalliferous and Nonmetalliferous Soils

et al. 2015

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“…Even though metal accumulation trait is not always correlated with metal soil content (Escarrè et al, 2000), it is known that metal tolerance depends on the type of soil in which populations are adapted to live (Zhao et al, 2002;Jiménez-Ambriz et al, 2006;Dechamps et al, 2007;Maestri et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Noccaea caerulescens populations adapted to grow in metalliferous and non-metalliferous soils: Ni tolerance, accumulation and expression analysis of genes involved in metal homeostasis

Visioli

Gullì

Marmiroli

2014

Environmental and Experimental Botany

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“…Therefore, high phenotypic variation in transfer factors between sites (Table 4) as well as high variation of shoot REEs concentration within populations (Table 3) could be explained by differences in REE availability in soils, impacted by rootinduced chemical changes in the rhizosphere or even by intraspecific root interactions of neighboring plants growing at the sites . The hypothesis of a genetic variability of REE accumulation in plant shoots could also explain this high phenotypic variation as demonstrated for several metals (Maestri et al, 2013;Meyer et al, 2015). For example, Lange et al (2018) observed lowest concentrations of Cu in plants from Kiswishi site that were in contact with extraordinarily high levels of REEs.…”

Section: Intra-specific Variations Of Ree Concentrations In Plant Shootsmentioning

confidence: 92%

Relationships between soil chemical properties and rare earth element concentrations in the aboveground biomass of a tropical herbaceous plant

Pourret¹,

Lange²,

Re³

et al. 2019

Preprint

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The geochemical behavior of rare earth elements (REE) has been mainly investigated in geological systems where they represent the best proxies for processes occurring at the interface between different media. REE concentrations, normalized with respect to the upper continental crust, were used to assess their behavior. In this study, REE geochemical behavior was investigated in plant shoots of a facultative metallophyte naturally growing in Katanga (Democratic Republic of Congo). Anisopappus chinensis and rooting zone soil samples (n=80) were collected in four natural sites with contrasting pedogeological environments (e.g., parent rock type, pH, organic matter content) and highly variable REE contents. Soil and plant REE concentrations and chemical soil factors were was analyzed by ICP-MS, to examine relationships between soil factor and REE accumulation in plants. REE uptake by plants was primarily correlated with their concentrations and/or their speciation in the soil as previously shown in the literature. Results of this study show that REE patterns in shoots are relatively flat whereas soils are enriched in middle REE. The geochemical behavior of REE illustrates that metals accumulation in aerial parts of A. chinensis is most probably driven by mechanisms involving REE complexation processes in the rhizosphere.

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Trade-off between genetic variation and ecological adaptation of metallicolous and non-metallicolous Noccaea and Thlaspi species

Cited by 8 publications

References 73 publications

Genome Structure of the Heavy Metal Hyperaccumulator Noccaea caerulescens and Its Stability on Metalliferous and Nonmetalliferous Soils

Genome Structure of the Heavy Metal Hyperaccumulator Noccaea caerulescens and Its Stability on Metalliferous and Nonmetalliferous Soils

Noccaea caerulescens populations adapted to grow in metalliferous and non-metalliferous soils: Ni tolerance, accumulation and expression analysis of genes involved in metal homeostasis

Relationships between soil chemical properties and rare earth element concentrations in the aboveground biomass of a tropical herbaceous plant

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