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Observationobservedoriginal resultmeasured

Claim · model-written summary

Over 30% of elongation and maturation cells had H3K9me1 signals around knobs.

Taxon
MaizeZea mayst0
Gene
H3K9me1e0
Outcome
signals around knobse0
Value
Over 30%e0

Verbatim

e0

“Over 30% of elongation and maturation cells exhibited H3K9me1 signals around knobs”

✓ located verbatim in the source · abstract, characters 1224–1306
t0

“Maize”

✓ located verbatim in the source · title, characters 113–118

Title

Comparison of Chromatin Epigenetic Modification Patterns among Root Meristem, Elongation and Maturation Zones in Maize (Zea mays L.)

Shihan Yan; Qi Zhang; Yingnan Li; et al. Cytogenetic and Genome Research 2014. doi:10.1159/000361003

Other claims from this paper (9)
Observationobservedoriginal resultmeasured

Claim · model-written summary

Nine recombination-suppressed regions were identified in non-centromeric regions of maize, one likely containing knobs.

Taxon
maizeZea mayst0
Organ / stage
non-centromeric regionse2
Outcome
recombination-suppressed regionse2
Value
ninee2
Qualifier
condensed heterochromatin (knobs)e2

Verbatim

t0

“Recombination frequency variation in maize”

✓ located verbatim in the source · title, characters 0–42
e2

“Recombination suppression in non-centromeric regions identified nine recombination-suppressed regions, one of which likely contained condensed heterochromatin (knobs)”

✓ located verbatim in the source · abstract, characters 706–872

Title

Recombination frequency variation in maize as revealed by genomewide single-nucleotide polymorphisms

Farkhari Open Access Repository of ICRISAT (International Crops Research Institute for the Semi-Arid Tropics) 2011

Other claims from this paper (6)
Observationobservedoriginal resultmeasured

Claim · model-written summary

Knobs showed H4K5ac signals in less than 7% of cells.

Taxon
MaizeZea mayst0
Gene
H4K5ace0
Outcome
knobs showed H4K5ac signalse0
Value
less than 7%e0

Verbatim

e0

“In only a small proportion of cells (less than 7%), knobs showed H4K5ac signals”

✓ located verbatim in the source · abstract, characters 976–1055
t0

“Maize”

✓ located verbatim in the source · title, characters 113–118

Title

Comparison of Chromatin Epigenetic Modification Patterns among Root Meristem, Elongation and Maturation Zones in Maize (Zea mays L.)

Shihan Yan; Qi Zhang; Yingnan Li; et al. Cytogenetic and Genome Research 2014. doi:10.1159/000361003

Other claims from this paper (9)
Observationobservedoriginal resultmeasured

Claim · model-written summary

Per DNA length, crossing over was suppressed but not eliminated in knobs.

Taxon
maizeZea mayst0
Outcome
crossing overe0
Direction
suppressede0
Qualifier
but not eliminatede0
Comparator
adjacent euchromatine0

Verbatim

e0

“crossing over is suppressed (but not eliminated) in knobs in the context of DNA length compared to adjacent euchromatin”

✓ located verbatim in the source · abstract, characters 1383–1502
t0

“Maize”

✓ located verbatim in the source · title, characters 25–30

Title

Meiotic Crossing Over in Maize Knob Heterochromatin

Stephen M Stack; Lindsay A Shearer; Leslie Lohmiller; et al. Genetics 2017. doi:10.1534/genetics.116.196089

Other claims from this paper (4)
Observationauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Tested kohlrabi knobs had nitrate within the stated safe limit for consumption.

Outcome
nitrate concentration in tested kohlrabi knobs is still in the safe border for human consumptione0

Not reportedDirection

Verbatim

e0

“nitrate concentration in tested kohlrabi knobs is still in the safe border for human consumption.”

✓ located verbatim in the source · abstract, characters 1109–1206

Title

Productivity and Quality of Kohlrabi Grown in a Newly Reclaimed Sandy Soil Using Organic and Mineral-N Fertilizer regimes with or without Spraying of Spirulina platensis Extract

Nahla Morsy Egyptian Journal of Horticulture 2019. doi:10.21608/ejoh.2019.12503.1105

Other claims from this paper (8)
Observationobservedoriginal resultmeasured

Claim · model-written summary

Male and female stylet knobs were bipartite with a groove.

Taxon
Laurel OakQuercus imbricariat0
Outcome
bipartitee0

Verbatim

e0

“The stylet knobs of males and females were bipartite, each incised by a deep medium longitudinal groove”

✓ located verbatim in the source · abstract, characters 1022–1125
t0

“Laurel Oak”

✓ located verbatim in the source · title, characters 16–26

Title

First Report of Laurel Oak as a Host for the Pecan Root-Knot Nematode, Meloidogyne partityla, in Florida

J. A. Brito; H. Han; J. D. Stanley; et al. Plant Disease 2012. doi:10.1094/pdis-02-12-0201-pdn

Other claims from this paper (9)
Observationobservedoriginal resultmeasured

Claim · model-written summary

In maize, heterochromatic knobs visible at pachynema were coincident with C-bands and 180-bp FISH signals on somatic chromosomes.

Taxon
MaizeZea mayse0
Organ / stage
somatic chromosomese1
Outcome
Heterochromatic knobse1

Verbatim

e0

“Maize karyotype variability has been extensively investigated”

✓ located verbatim in the source · abstract, characters 0–61
e1

“Heterochromatic knobs visible at pachynema were coincident with C-bands and 180-bp FISH signals on somatic chromosomes, and most of them were large”

✓ located verbatim in the source · abstract, characters 747–894

Title

Karyotype variability in tropical maize sister inbred lines and hybrids compared with KYS standard line

Mateus Mondin; Janay A. Santos-Serejo; Mônica R. Bertäo; et al. Frontiers in Plant Science 2014. doi:10.3389/fpls.2014.00544

Other claims from this paper (7)
Observationobservedoriginal resultmeasured

Claim · model-written summary

Juvenile stylet knobs, male head shape and female perennial pattern were typical for M. hapla.

Taxon
M. haplaMeloidogyne haplae0
Outcome
Shape of juvenile stylet knobs, shape of male head, and perennial patterne0
Qualifier
typicale0

Verbatim

e0

“Shape of juvenile stylet knobs, shape of male head, and perennial pattern of the females with characteristic punctuations between the anus and tail terminus were also typical for M. hapla.”

✓ located verbatim in the source · abstract, characters 1033–1221

Title

First Report of the Root-Knot Nematode Meloidogyne hapla Parasitizing Roses in Ethiopia

Beira H. Meressa; H. Heuer; H.-W. Dehne; et al. Plant Disease 2014. doi:10.1094/pdis-04-14-0383-pdn

Other claims from this paper (10)
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Knobs do not appear to affect linkage disequilibrium among nearby genes.

Taxon
MaizeZea mayst0
Material
knob repeat regionse0
Outcome
linkage disequilibrium among genese0
Direction
do not appear to affecte0

Verbatim

e0

“do not appear to affect linkage disequilibrium among genes within and near knob repeat regions of the B73 RefGen_v2 assembly”

✓ located verbatim in the source · abstract, characters 958–1082
t0

“Maize”

✓ located verbatim in the source · title, characters 0–5

Title

Maize chromosomal knobs are located in gene-dense areas and suppress local recombination

Rashin Ghaffari; Ethalinda K. S. Cannon; Lisa B. Kanizay; et al. Chromosoma 2012. doi:10.1007/s00412-012-0391-8

Other claims from this paper (3)
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The absence of hybridization signals in all maize knobs indicates that these heterochromatic regions were lost during Z. perennis genome evolution.

Taxon
maizeZea mayse7
Outcome
absence of hybridization signals in all maize knobse7
Qualifier
heterochromatic regions were lost during the Z. perennis genome evolutione7

Verbatim

e7

“the absence of hybridization signals in all maize knobs indicate that these heterochromatic regions were lost during the Z. perennis genome evolution”

✓ located verbatim in the source · abstract, characters 1666–1815

Title

Genomic affinities revealed by GISH suggests intergenomic restructuring between parental genomes of the paleopolyploid genus Zea

Graciela Esther González; Lidia Poggio Genome 2015. doi:10.1139/gen-2015-0081

Other claims from this paper (9)

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