Search claims · PlantClaims

Observationobservedoriginal resultmeasured

Claim · model-written summary

Lineage-specific alleles that decrease trichome density persist in natural populations.

Taxon: Arabidopsis thalianaArabidopsis thalianat0
Material: lineage-specific allelese0
Outcome: trichome densitye0
Direction: decreasee0

Verbatim

e0
“many lineage-specific alleles that either increase or decrease trichome density persist in natural populations”
✓ located verbatim in the source · abstract, characters 1046–1156

t0
“Arabidopsis thaliana”
✓ located verbatim in the source · title, characters 59–79

Title

Mapping Quantitative Trait Loci in Multiple Populations of Arabidopsis thaliana Identifies Natural Allelic Variation for Trichome Density

V Vaughan Symonds; A Veronica Godoy; Teresa Alconada; et al. Genetics 2005. doi:10.1534/genetics.104.031948

Other claims from this paper (5)

Observation Seven of nine trichome-density QTL were population-specific.
Observation Two trichome-density QTL mapped in all four populations.
Observation Lineage-specific alleles that increase trichome density persist in natural populations.
Observation Most genetic variation in trichome density was additive.
Recommendation The authors conclude multiple populations help characterize the genetic architecture of natural variation.

Observationobservedreview summarybasis n/a

Claim · model-written summary

Chilling, planting density, rubbing, cutting and repeated subculture generally decrease plant DNA methylation.

Taxon: plantt0
Treatment: chilling, planting density, rubbing, cutting, and successive rounds of subculturee0
Outcome: levels of DNA methylatione0
Direction: decreasee0

Verbatim

e0
“Abiotic stresses such as chilling, planting density, rubbing, cutting, and successive rounds of subculture generally decrease the levels of DNA methylation”
✓ located verbatim in the source · abstract, characters 140–295

t0
“Plant genomic DNA methylation”
✓ located verbatim in the source · title, characters 0–29

Title

Plant genomic DNA methylation in response to stresses: Potential applications and challenges in plant breeding

Hai Peng; Jing Zhang Progress in Natural Science Materials International 2009. doi:10.1016/j.pnsc.2008.10.014

Other claims from this paper (5)

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors linked the density induced ratio decrease to downregulation of three carbon metabolism enzymes.

Outcome: downregulation of C 4 carbon metabolism enzymese0
Qualifier: C 4 carbon metabolism enzymese0

Not reportedTaxon

Verbatim

e0
“which resulted in downregulation of C 4 carbon metabolism enzymes (phosphoenolpyruvate carboxykinase, phosphoenolpyruvate carboxylase, and pyruvate orthophosphate dikinase).”
✓ located verbatim in the source · abstract, characters 1189–1362

Title

Corn Response to Competition: Growth Alteration vs. Yield Limiting Factors

S. A. Clay; D. E. Clay; D. P. Horvath; et al. Agronomy Journal 2009. doi:10.2134/agronj2008.0213x

Other claims from this paper (12)

Intervention effect Sixty percent shade increased corn chlorophyll relative to full sun.
Intervention effect Sixty percent shade reduced corn leaf area and height relative to full sun.
Intervention effect Double density plants had 11% less chlorophyll than single density plants.
Intervention effect Double density plants had leaf area and height similar to shaded plants.
Intervention effect Double density plants were smaller at harvest.
Intervention effect Double density increased water and nitrogen use efficiency.
Intervention effect Double density increased yield per hectare by 11%.
Intervention effect Sixty percent shade reduced yield per plant by 50%.
Intervention effect Double density reduced yield per plant by 50%.
Mechanism The authors attributed shaded plant yield reduction to light stress.
Intervention effect High density was associated with a 20% decrease in red to near infrared ratio.
Observation High density and shade had similar per plant yield impact but different compensation mechanisms.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

SDD1 overexpression decreased stomatal density twofold to threefold.

Taxon: ArabidopsisArabidopsist0
Treatment: SDD1 overexpressione0
Gene: SDD1e0
Outcome: stomatal densitye0
Direction: decreasee0
Value: twofold to threefolde0
Comparator: wild typee0

Verbatim

e0
“SDD1 overexpression in the wild type leads to a phenotype opposite to that caused by the sdd1-1 mutation, with a twofold to threefold decrease in stomatal density and the formation of arrested stomata”
✓ located verbatim in the source · abstract, characters 652–852

t0
“Arabidopsis Stomatal Development”
✓ located verbatim in the source · title, characters 80–112

Title

The Subtilisin-Like Serine Protease SDD1 Mediates Cell-to-Cell Signaling during Arabidopsis Stomatal Development

Uritza von Groll; Dieter Berger; Thomas Altmann The Plant Cell 2002. doi:10.1105/tpc.001016

Other claims from this paper (9)

Intervention effect The sdd1-1 mutation caused stomatal clustering.
Intervention effect The sdd1-1 mutation increased stomatal density twofold to fourfold.
Observation SDD1 expression was strong in stomatal precursor cells.
Mechanism Feedback negatively controlled the SDD1 promoter.
Observation The SDD1 protein was exported to the apoplast and probably associated with the plasma membrane.
Intervention effect SDD1 overexpression formed arrested stomata.
Observation SDD1 overexpression was effective in flp but tmm acted epistatically.
Mechanism The authors propose that SDD1 generates an extracellular signal from stomatal precursor cells.
Mechanism SDD1 function depended on TMM activity.

Associationobservedoriginal resultmeasured

Claim · model-written summary

TE abundance shows a consistent negative correlation with gene density in A. thaliana.

Taxon: Arabidopsis thalianaArabidopsis thalianae0
Treatment: gene densitye2
Outcome: TE abundancee2
Direction: decreaseinferrede2

Verbatim

e0
“the genome sequence of Arabidopsis thaliana”
✓ located verbatim in the source · abstract, characters 334–377

e2
“a consistent negative correlation between gene density and TE abundance”
✓ located verbatim in the source · abstract, characters 711–782

Title

Effects of Recombination Rate and Gene Density on Transposable Element Distributions in Arabidopsis thaliana

Stephen I. Wright; Newton Agrawal; Thomas E. Bureau Genome Research 2003. doi:10.1101/gr.1281503

Other claims from this paper (4)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Lineage-specific alleles that increase trichome density persist in natural populations.

Taxon: Arabidopsis thalianaArabidopsis thalianat0
Material: lineage-specific allelese0
Outcome: trichome densitye0
Direction: increasee0

Verbatim

e0
“many lineage-specific alleles that either increase or decrease trichome density persist in natural populations”
✓ located verbatim in the source · abstract, characters 1046–1156

t0
“Arabidopsis thaliana”
✓ located verbatim in the source · title, characters 59–79

Title

Mapping Quantitative Trait Loci in Multiple Populations of Arabidopsis thaliana Identifies Natural Allelic Variation for Trichome Density

V Vaughan Symonds; A Veronica Godoy; Teresa Alconada; et al. Genetics 2005. doi:10.1534/genetics.104.031948

Other claims from this paper (5)

Observation Seven of nine trichome-density QTL were population-specific.
Observation Two trichome-density QTL mapped in all four populations.
Observation Lineage-specific alleles that decrease trichome density persist in natural populations.
Observation Most genetic variation in trichome density was additive.
Recommendation The authors conclude multiple populations help characterize the genetic architecture of natural variation.

Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend introgressing both QTL into potato cultivars to reduce nematode density and resistance breakdown.

Taxon: potatoSolanum tuberosume0
Interactor: G. pallidaGlobodera pallidae0pathogen
Gene: GpaV(s)sple0
Outcome: introgress together GpaV(s)spl and GpaXI(s)spl into potato cultivarse0

Verbatim

e0
“introgress together GpaV(s)spl and GpaXI(s)spl into potato cultivars, in order to reduce the density of this quarantine pest in soil and to decrease the risk of selecting overcoming G. pallida subpopulations”
✓ located verbatim in the source · abstract, characters 1122–1329

Title

Resistance Quantitative Trait Loci Originating from Solanum sparsipilum Act Independently on the Sex Ratio of Globodera pallida and Together for Developing a Necrotic Reaction

Bernard Caromel; Didier Mugniéry; Marie-Claire Kerlan; et al. Molecular Plant-Microbe Interactions 2005. doi:10.1094/mpmi-18-1186

Other claims from this paper (8)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

CAB transcripts decreased in abundance during grapevine leaf senescence.

Taxon: Vitis viniferaVitis viniferae0
Material: 'Pinot noir'e0
Organ / stage: leaf senescencee3
Gene: chlorophyll a/b binding (CAB) genese2
Outcome: CAB transcriptse1
Direction: decreasee1

Verbatim

e0
“Vitis vinifera 'Pinot noir' leaves 7, 88 and 131 days-old”
✓ located verbatim in the source · abstract, characters 534–591

e1
“While CAB transcripts decrease in their abundance, cysteine-proteinases are activated”
✓ located verbatim in the source · abstract, characters 853–938

e2
“chlorophyll a/b binding (CAB) genes and the cysteine-proteinases genes”
✓ located verbatim in the source · abstract, characters 781–851

e3
“At this stage of leaf senescence”
✓ located verbatim in the source · abstract, characters 702–734

Title

GENE EXPRESSION PROFILING DURING GRAPE LEAF DEVELOPMENT AND SENESCENCE BY HIGH DENSITY FILTERS

C. Moser; M. Pindo; M. Bertamini; et al. Acta Horticulturae 2005. doi:10.17660/actahortic.2005.689.52

Other claims from this paper (2)

Association Cysteine-proteinase genes were activated during grapevine leaf senescence.
Method / resource A cDNA macroarray of about 2300 putative unigenes was constructed for grapevine leaves.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

SDD1 overexpression formed arrested stomata.

Taxon: ArabidopsisArabidopsist0
Treatment: SDD1 overexpressione0
Gene: SDD1e0
Outcome: formation of arrested stomatae0
Comparator: wild typee0

Not reportedDirection

Verbatim

e0
“SDD1 overexpression in the wild type leads to a phenotype opposite to that caused by the sdd1-1 mutation, with a twofold to threefold decrease in stomatal density and the formation of arrested stomata”
✓ located verbatim in the source · abstract, characters 652–852

t0
“Arabidopsis Stomatal Development”
✓ located verbatim in the source · title, characters 80–112

Title

The Subtilisin-Like Serine Protease SDD1 Mediates Cell-to-Cell Signaling during Arabidopsis Stomatal Development

Uritza von Groll; Dieter Berger; Thomas Altmann The Plant Cell 2002. doi:10.1105/tpc.001016

Other claims from this paper (9)

Intervention effect The sdd1-1 mutation caused stomatal clustering.
Intervention effect The sdd1-1 mutation increased stomatal density twofold to fourfold.
Observation SDD1 expression was strong in stomatal precursor cells.
Mechanism Feedback negatively controlled the SDD1 promoter.
Observation The SDD1 protein was exported to the apoplast and probably associated with the plasma membrane.
Intervention effect SDD1 overexpression decreased stomatal density twofold to threefold.
Observation SDD1 overexpression was effective in flp but tmm acted epistatically.
Mechanism The authors propose that SDD1 generates an extracellular signal from stomatal precursor cells.
Mechanism SDD1 function depended on TMM activity.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Cysteine-proteinase genes were activated during grapevine leaf senescence.

Taxon: Vitis viniferaVitis viniferae0
Organ / stage: leaf senescencee3
Gene: cysteine-proteinases genese2
Outcome: cysteine-proteinasese1
Direction: activatede1

Verbatim

e0
“Vitis vinifera 'Pinot noir' leaves 7, 88 and 131 days-old”
✓ located verbatim in the source · abstract, characters 534–591

e1
“While CAB transcripts decrease in their abundance, cysteine-proteinases are activated”
✓ located verbatim in the source · abstract, characters 853–938

e2
“chlorophyll a/b binding (CAB) genes and the cysteine-proteinases genes”
✓ located verbatim in the source · abstract, characters 781–851

e3
“At this stage of leaf senescence”
✓ located verbatim in the source · abstract, characters 702–734

Title

GENE EXPRESSION PROFILING DURING GRAPE LEAF DEVELOPMENT AND SENESCENCE BY HIGH DENSITY FILTERS

C. Moser; M. Pindo; M. Bertamini; et al. Acta Horticulturae 2005. doi:10.17660/actahortic.2005.689.52

Other claims from this paper (2)

Association CAB transcripts decreased in abundance during grapevine leaf senescence.
Method / resource A cDNA macroarray of about 2300 putative unigenes was constructed for grapevine leaves.

“decrease in density”

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