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Molecular diversity and metal accumulation of different Thlaspi praecox populations from Slovenia

Nuclear ribosomal sequences and Cd, Zn, Pb and Fe accumulation of different populations of the recently discovered Cd/Zn-hyperaccumulating species Thlaspi praecox Wulfen (Noccaea) were studied to reveal their relationships to other representatives of the genus and especially to the well known hypera... Full description

Journal Title: Plant and soil 2010, Vol.330 (1/2), p.195-205
Main Author: Likar, Matevž
Other Authors: Pongrac, Paula , Vogel-Mikuš, Katarina , Regvar, Marjana
Format: Electronic Article Electronic Article
Language: English
Subjects:
Publisher: Dordrecht: Springer
ID: ISSN: 0032-079X
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recordid: cdi_proquest_journals_200593955
title: Molecular diversity and metal accumulation of different Thlaspi praecox populations from Slovenia
format: Article
creator:
  • Likar, Matevž
  • Pongrac, Paula
  • Vogel-Mikuš, Katarina
  • Regvar, Marjana
subjects:
  • Biochemistry
  • Biomass
  • Biomedical and Life Sciences
  • Brasses
  • Cadmium
  • cadmium (Cd)
  • Comparative studies
  • Contaminated sites
  • Ecology
  • Genetics
  • hyperaccumulation
  • iron (Fe)
  • lead (Pb)
  • Life Sciences
  • Maximum parsimony
  • Molecular biology
  • phylogenetic relationships
  • Phylogenetics
  • Plant Physiology
  • Plant Sciences
  • Plants
  • Population characteristics
  • Population mean
  • rDNA
  • Regular Article
  • Ribosomal DNA
  • Soil pollution
  • Soil Science & Conservation
  • zinc (Zn)
ispartof: Plant and soil, 2010, Vol.330 (1/2), p.195-205
description: Nuclear ribosomal sequences and Cd, Zn, Pb and Fe accumulation of different populations of the recently discovered Cd/Zn-hyperaccumulating species Thlaspi praecox Wulfen (Noccaea) were studied to reveal their relationships to other representatives of the genus and especially to the well known hyperaccumulator T. caerulescens; comparisons of their accumulating properties were also made. Internal transcribed spacer (ITS) rDNA sequences from eight T. praecox populations from Slovenia showed 99% similarity and formed a sister group to T. caerulescens. Divergence estimates from the ITS rDNA support the origins of T. praecox in the Early Pleistocene, with further fragmentation of T. praecox populations in Slovenia since the Middle Pleistocene. Cd-hyperaccumulating features (>100 mg Cd kg-1 in the above-ground biomass) of T. praecox were seen for two populations collected at polluted sites (Žerjav and Mežica) and one population collected at a non-polluted site (Lokovec). The variability of the Cd concentrations in shoots was almost completely explained by the soil Cd concentrations, and were positively correlated with shoot Zn and Pb concentrations. The results from this molecular and metal accumulation characterisation of T. praecox populations provide new insights into the taxonomic affinities and accumulation potential of this hyperaccumulating species.
language: eng
source:
identifier: ISSN: 0032-079X
fulltext: no_fulltext
issn:
  • 0032-079X
  • 1573-5036
url: Link


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descriptionNuclear ribosomal sequences and Cd, Zn, Pb and Fe accumulation of different populations of the recently discovered Cd/Zn-hyperaccumulating species Thlaspi praecox Wulfen (Noccaea) were studied to reveal their relationships to other representatives of the genus and especially to the well known hyperaccumulator T. caerulescens; comparisons of their accumulating properties were also made. Internal transcribed spacer (ITS) rDNA sequences from eight T. praecox populations from Slovenia showed 99% similarity and formed a sister group to T. caerulescens. Divergence estimates from the ITS rDNA support the origins of T. praecox in the Early Pleistocene, with further fragmentation of T. praecox populations in Slovenia since the Middle Pleistocene. Cd-hyperaccumulating features (>100 mg Cd kg-1 in the above-ground biomass) of T. praecox were seen for two populations collected at polluted sites (Žerjav and Mežica) and one population collected at a non-polluted site (Lokovec). The variability of the Cd concentrations in shoots was almost completely explained by the soil Cd concentrations, and were positively correlated with shoot Zn and Pb concentrations. The results from this molecular and metal accumulation characterisation of T. praecox populations provide new insights into the taxonomic affinities and accumulation potential of this hyperaccumulating species.
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subjectBiochemistry ; Biomass ; Biomedical and Life Sciences ; Brasses ; Cadmium ; cadmium (Cd) ; Comparative studies ; Contaminated sites ; Ecology ; Genetics ; hyperaccumulation ; iron (Fe) ; lead (Pb) ; Life Sciences ; Maximum parsimony ; Molecular biology ; phylogenetic relationships ; Phylogenetics ; Plant Physiology ; Plant Sciences ; Plants ; Population characteristics ; Population mean ; rDNA ; Regular Article ; Ribosomal DNA ; Soil pollution ; Soil Science & Conservation ; zinc (Zn)
ispartofPlant and soil, 2010, Vol.330 (1/2), p.195-205
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descriptionNuclear ribosomal sequences and Cd, Zn, Pb and Fe accumulation of different populations of the recently discovered Cd/Zn-hyperaccumulating species Thlaspi praecox Wulfen (Noccaea) were studied to reveal their relationships to other representatives of the genus and especially to the well known hyperaccumulator T. caerulescens; comparisons of their accumulating properties were also made. Internal transcribed spacer (ITS) rDNA sequences from eight T. praecox populations from Slovenia showed 99% similarity and formed a sister group to T. caerulescens. Divergence estimates from the ITS rDNA support the origins of T. praecox in the Early Pleistocene, with further fragmentation of T. praecox populations in Slovenia since the Middle Pleistocene. Cd-hyperaccumulating features (>100 mg Cd kg-1 in the above-ground biomass) of T. praecox were seen for two populations collected at polluted sites (Žerjav and Mežica) and one population collected at a non-polluted site (Lokovec). The variability of the Cd concentrations in shoots was almost completely explained by the soil Cd concentrations, and were positively correlated with shoot Zn and Pb concentrations. The results from this molecular and metal accumulation characterisation of T. praecox populations provide new insights into the taxonomic affinities and accumulation potential of this hyperaccumulating species.
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volume330
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abstractNuclear ribosomal sequences and Cd, Zn, Pb and Fe accumulation of different populations of the recently discovered Cd/Zn-hyperaccumulating species Thlaspi praecox Wulfen (Noccaea) were studied to reveal their relationships to other representatives of the genus and especially to the well known hyperaccumulator T. caerulescens; comparisons of their accumulating properties were also made. Internal transcribed spacer (ITS) rDNA sequences from eight T. praecox populations from Slovenia showed 99% similarity and formed a sister group to T. caerulescens. Divergence estimates from the ITS rDNA support the origins of T. praecox in the Early Pleistocene, with further fragmentation of T. praecox populations in Slovenia since the Middle Pleistocene. Cd-hyperaccumulating features (>100 mg Cd kg-1 in the above-ground biomass) of T. praecox were seen for two populations collected at polluted sites (Žerjav and Mežica) and one population collected at a non-polluted site (Lokovec). The variability of the Cd concentrations in shoots was almost completely explained by the soil Cd concentrations, and were positively correlated with shoot Zn and Pb concentrations. The results from this molecular and metal accumulation characterisation of T. praecox populations provide new insights into the taxonomic affinities and accumulation potential of this hyperaccumulating species.
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doi10.1007/s11104-009-0192-x