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Genome-wide association mapping of time-dependent growth responses to moderate drought stress in Arabidopsis

Large areas of arable land are often confronted with irregular rainfall resulting in limited water availability for part(s) of the growing seasons, which demands research for drought tolerance of plants. Natural variation was observed for biomass accumulation upon controlled moderate drought stress... Full description

Journal Title: Plant Cell and Environment, Jan 2016, Vol.39(1), pp.88-102
Main Author: Bac-Molenaar, Johanna A
Other Authors: Granier, Christine , Keurentjes, Joost J B , Vreugdenhil, Dick
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 01407791 ; E-ISSN: 13653040 ; DOI: 10.1111/pce.12595
Link: http://search.proquest.com/docview/1757585984/?pq-origsite=primo
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title: Genome-wide association mapping of time-dependent growth responses to moderate drought stress in Arabidopsis
format: Article
creator:
  • Bac-Molenaar, Johanna A
  • Granier, Christine
  • Keurentjes, Joost J B
  • Vreugdenhil, Dick
subjects:
  • Genomes – Analysis
  • Genomes – Growth
  • Single Nucleotide Polymorphisms – Analysis
  • Single Nucleotide Polymorphisms – Growth
  • Natural Selection – Analysis
  • Natural Selection – Growth
  • Droughts – Analysis
  • Population Genetics – Analysis
  • Population Genetics – Growth
  • Arabidopsis Thaliana – Analysis
  • Arabidopsis Thaliana – Growth
  • Quantitative Genetics – Analysis
  • Genetic Research – Analysis
  • Genetic Research – Growth
  • Gene Expression – Analysis
  • Gene Expression – Growth
  • Genomics – Analysis
  • Genomics – Growth
ispartof: Plant, Cell and Environment, Jan 2016, Vol.39(1), pp.88-102
description: Large areas of arable land are often confronted with irregular rainfall resulting in limited water availability for part(s) of the growing seasons, which demands research for drought tolerance of plants. Natural variation was observed for biomass accumulation upon controlled moderate drought stress in 324 natural accessions of Arabidopsis. Improved performance under drought stress was correlated with early flowering and lack of vernalization requirement, indicating overlap in the regulatory networks of flowering time and drought response or correlated responses of these traits to natural selection. In addition, plant size was negatively correlated with relative water content (RWC) independent of the absolute water content (WC), indicating a prominent role for soluble compounds. Growth in control and drought conditions was determined over time and was modelled by an exponential function. Genome-wide association (GWA) mapping of temporal plant size data and of model parameters resulted in the detection of six time-dependent quantitative trait loci (QTLs) strongly associated with drought. Most QTLs would not have been identified if plant size was determined at a single time point. Analysis of earlier reported gene expression changes upon drought enabled us to identify for each QTL the most likely candidates. Drought is one of the major causes of yield loss in agriculture and therefore research for drought tolerance of plants is demanded. Growth of a natural population of 324 natural accessions was determined over time in control and moderate drought conditions, and subsequently, growth was modelled by an exponential function. GWA mapping resulted in the detection of six, time-dependent, QTLs strongly associated with drought. Analysis of earlier reported gene expression changes upon drought enabled us to identify for each QTL the most likely candidates.
language: eng
source:
identifier: ISSN: 01407791 ; E-ISSN: 13653040 ; DOI: 10.1111/pce.12595
fulltext: fulltext
issn:
  • 01407791
  • 0140-7791
  • 13653040
  • 1365-3040
url: Link


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titleGenome-wide association mapping of time-dependent growth responses to moderate drought stress in Arabidopsis
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descriptionLarge areas of arable land are often confronted with irregular rainfall resulting in limited water availability for part(s) of the growing seasons, which demands research for drought tolerance of plants. Natural variation was observed for biomass accumulation upon controlled moderate drought stress in 324 natural accessions of Arabidopsis. Improved performance under drought stress was correlated with early flowering and lack of vernalization requirement, indicating overlap in the regulatory networks of flowering time and drought response or correlated responses of these traits to natural selection. In addition, plant size was negatively correlated with relative water content (RWC) independent of the absolute water content (WC), indicating a prominent role for soluble compounds. Growth in control and drought conditions was determined over time and was modelled by an exponential function. Genome-wide association (GWA) mapping of temporal plant size data and of model parameters resulted in the detection of six time-dependent quantitative trait loci (QTLs) strongly associated with drought. Most QTLs would not have been identified if plant size was determined at a single time point. Analysis of earlier reported gene expression changes upon drought enabled us to identify for each QTL the most likely candidates. Drought is one of the major causes of yield loss in agriculture and therefore research for drought tolerance of plants is demanded. Growth of a natural population of 324 natural accessions was determined over time in control and moderate drought conditions, and subsequently, growth was modelled by an exponential function. GWA mapping resulted in the detection of six, time-dependent, QTLs strongly associated with drought. Analysis of earlier reported gene expression changes upon drought enabled us to identify for each QTL the most likely candidates.
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subjectGenomes – Analysis ; Genomes – Growth ; Single Nucleotide Polymorphisms – Analysis ; Single Nucleotide Polymorphisms – Growth ; Natural Selection – Analysis ; Natural Selection – Growth ; Droughts – Analysis ; Population Genetics – Analysis ; Population Genetics – Growth ; Arabidopsis Thaliana – Analysis ; Arabidopsis Thaliana – Growth ; Quantitative Genetics – Analysis ; Genetic Research – Analysis ; Genetic Research – Growth ; Gene Expression – Analysis ; Gene Expression – Growth ; Genomics – Analysis ; Genomics – Growth;
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descriptionLarge areas of arable land are often confronted with irregular rainfall resulting in limited water availability for part(s) of the growing seasons, which demands research for drought tolerance of plants. Natural variation was observed for biomass accumulation upon controlled moderate drought stress in 324 natural accessions of Arabidopsis. Improved performance under drought stress was correlated with early flowering and lack of vernalization requirement, indicating overlap in the regulatory networks of flowering time and drought response or correlated responses of these traits to natural selection. In addition, plant size was negatively correlated with relative water content (RWC) independent of the absolute water content (WC), indicating a prominent role for soluble compounds. Growth in control and drought conditions was determined over time and was modelled by an exponential function. Genome-wide association (GWA) mapping of temporal plant size data and of model parameters resulted in the detection of six time-dependent quantitative trait loci (QTLs) strongly associated with drought. Most QTLs would not have been identified if plant size was determined at a single time point. Analysis of earlier reported gene expression changes upon drought enabled us to identify for each QTL the most likely candidates. Drought is one of the major causes of yield loss in agriculture and therefore research for drought tolerance of plants is demanded. Growth of a natural population of 324 natural accessions was determined over time in control and moderate drought conditions, and subsequently, growth was modelled by an exponential function. GWA mapping resulted in the detection of six, time-dependent, QTLs strongly associated with drought. Analysis of earlier reported gene expression changes upon drought enabled us to identify for each QTL the most likely candidates.
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abstractLarge areas of arable land are often confronted with irregular rainfall resulting in limited water availability for part(s) of the growing seasons, which demands research for drought tolerance of plants. Natural variation was observed for biomass accumulation upon controlled moderate drought stress in 324 natural accessions of Arabidopsis. Improved performance under drought stress was correlated with early flowering and lack of vernalization requirement, indicating overlap in the regulatory networks of flowering time and drought response or correlated responses of these traits to natural selection. In addition, plant size was negatively correlated with relative water content (RWC) independent of the absolute water content (WC), indicating a prominent role for soluble compounds. Growth in control and drought conditions was determined over time and was modelled by an exponential function. Genome-wide association (GWA) mapping of temporal plant size data and of model parameters resulted in the detection of six time-dependent quantitative trait loci (QTLs) strongly associated with drought. Most QTLs would not have been identified if plant size was determined at a single time point. Analysis of earlier reported gene expression changes upon drought enabled us to identify for each QTL the most likely candidates. Drought is one of the major causes of yield loss in agriculture and therefore research for drought tolerance of plants is demanded. Growth of a natural population of 324 natural accessions was determined over time in control and moderate drought conditions, and subsequently, growth was modelled by an exponential function. GWA mapping resulted in the detection of six, time-dependent, QTLs strongly associated with drought. Analysis of earlier reported gene expression changes upon drought enabled us to identify for each QTL the most likely candidates.
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pubWiley Subscription Services, Inc.
doi10.1111/pce.12595
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date2016-01-01