Cyperus iria 212 claims

species · family Cyperaceae · green plant · NCBI Taxonomy ↗

Also written in claims: C. iria L · C. iria stachys · rice flatsedge

14 spellings

Questions studied on this organism5 questions6 papers

Cyperus iriaDinesh Valke from Thane, India · CC BY-SA 2.0 · Wikimedia Commons ↗

212 claims

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Observationobservedoriginal resultmeasured

Claim · model-written summary

Cyperus iria was susceptible to Meloidogyne ottersoni.

Taxon: Cyperus iriaCyperus iriae3
Interactor: Meloidogyne ottersonie0pathogen
Outcome: susceptiblee3

Not reportedDirection

Verbatim

e0
“We evaluated the host suitability of the weeds associated with rice crops regarding Meloidogyne ottersoni and M. graminicola”
✓ located verbatim in the source · abstract, characters 10–134

e3
“Plants of Cyperus iria, Cyperus difformis, Echinochloa crus-galli and Echinochloa colonum were susceptible to M. ottersoni, but resistant to M. graminicola”
✓ located verbatim in the source · abstract, characters 253–408

Title

Host suitability of weeds to Meloidogyne ottersoni and Meloidogyne graminicola.

LOPEZ, K. J. A.; LUCAS, D. G. R.; CHIAPINOTTO, D. M.; et al. LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) 2025

Other claims from this paper (16)

Observation Both nematodes developed on rice (Oryza sativa).
Observation Cyperus ferax was resistant to Meloidogyne ottersoni.
Observation Cyperus iria was resistant to M. graminicola.
Observation Cyperus difformis was susceptible to Meloidogyne ottersoni.
Observation Cyperus difformis was resistant to M. graminicola.
Observation Echinochloa crus-galli was susceptible to Meloidogyne ottersoni.
Observation Echinochloa crus-galli was resistant to M. graminicola.
Observation Echinochloa colonum was susceptible to Meloidogyne ottersoni.
Observation Echinochloa colonum was resistant to M. graminicola.
Observation Aeschynomene denticulata was immune to M. graminicola.
Observation Aeschynomene denticulata was susceptible to Meloidogyne ottersoni in the first assessment.
Observation Aeschynomene denticulata was resistant to Meloidogyne ottersoni in the second assessment.
Observation Leersia hexandra was immune to M. graminicola.
Observation Leersia hexandra was susceptible to Meloidogyne ottersoni in the first assessment.
Observation Leersia hexandra was resistant to Meloidogyne ottersoni in the second assessment.
Recommendation Weed management should be included in strategies to control root-knot nematode diseases.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Cyperus iria was resistant to M. graminicola.

Taxon: Cyperus iriaCyperus iriae3
Interactor: M. graminicolaMeloidogyne graminicolae0pathogen
Outcome: resistante3

Not reportedDirection

Verbatim

e0
“We evaluated the host suitability of the weeds associated with rice crops regarding Meloidogyne ottersoni and M. graminicola”
✓ located verbatim in the source · abstract, characters 10–134

e3
“Plants of Cyperus iria, Cyperus difformis, Echinochloa crus-galli and Echinochloa colonum were susceptible to M. ottersoni, but resistant to M. graminicola”
✓ located verbatim in the source · abstract, characters 253–408

Title

Host suitability of weeds to Meloidogyne ottersoni and Meloidogyne graminicola.

LOPEZ, K. J. A.; LUCAS, D. G. R.; CHIAPINOTTO, D. M.; et al. LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) 2025

Other claims from this paper (16)

Observation Both nematodes developed on rice (Oryza sativa).
Observation Cyperus ferax was resistant to Meloidogyne ottersoni.
Observation Cyperus iria was susceptible to Meloidogyne ottersoni.
Observation Cyperus difformis was susceptible to Meloidogyne ottersoni.
Observation Cyperus difformis was resistant to M. graminicola.
Observation Echinochloa crus-galli was susceptible to Meloidogyne ottersoni.
Observation Echinochloa crus-galli was resistant to M. graminicola.
Observation Echinochloa colonum was susceptible to Meloidogyne ottersoni.
Observation Echinochloa colonum was resistant to M. graminicola.
Observation Aeschynomene denticulata was immune to M. graminicola.
Observation Aeschynomene denticulata was susceptible to Meloidogyne ottersoni in the first assessment.
Observation Aeschynomene denticulata was resistant to Meloidogyne ottersoni in the second assessment.
Observation Leersia hexandra was immune to M. graminicola.
Observation Leersia hexandra was susceptible to Meloidogyne ottersoni in the first assessment.
Observation Leersia hexandra was resistant to Meloidogyne ottersoni in the second assessment.
Recommendation Weed management should be included in strategies to control root-knot nematode diseases.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The extract reduced ALS activity in Cyperus iria to 41.79% relative activity.

Taxon: Cyperus iriaCyperus iriae1
Treatment: extracte0
Gene: ALSe0
Outcome: ALS activitye0
Direction: reducede0
Value: 41.79%e0

Not reportedComparator

Verbatim

e0
“The extract significantly reduced ALS activity (10 ppb), with mean relative activity of 41.79% for C. iria”
✓ located verbatim in the source · abstract, characters 767–873

e1
“Cyperus iria (sedge)”
✓ located verbatim in the source · abstract, characters 608–628

Title

In vitro inhibition of acetolactate synthase by alkaloid‐rich extract from guinea grass ( Megathyrsus maximus ) for herbicidal potential

Melvin A. Castrosanto; Fame S. Mojares; Kevin C. Salamanez Weed Research 2025. doi:10.1111/wre.70024

Other claims from this paper (4)

Intervention effect Guinea grass extract inhibited lettuce seed germination with an IC50 of 609 ppm.
Intervention effect The extract reduced ALS activity in Echinochloa crus‐galli to 50.85% relative activity.
Intervention effect The extract reduced ALS activity in Amaranthus spinosus to 70.86% relative activity.
Observation An alkaloid compound was isolated from the guinea grass extract.

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

The assembled Cyperus iria genome is 479.08 Mb.

Taxon: C. iriaCyperus iriae0
Outcome: assembled genome sizee0
Value: 479.08 Mbe0

Verbatim

e0
“The assembled genome size of C. iria was 479.08 Mb with a contig N50 of 7.02 Mb.”
✓ located verbatim in the source · abstract, characters 241–321

Title

Chromosome-level genome assembly of Cyperus iria, an aggressive weed of rice

Siyu Yang; Qingyi Cao; Zexin Wen; et al. Scientific Data 2025. doi:10.1038/s41597-025-04470-6

Other claims from this paper (6)

Method / resource The Cyperus iria genome assembly has a contig N50 of 7.02 Mb.
Method / resource Hi-C scaffolding produced 68 pseudochromosomes.
Method / resource Pseudochromosomes accounted for 99.65% of the assembled genome.
Method / resource The assembly predicts 47,395 protein-coding genes.
Method / resource Of the predicted genes, 93.26% were annotated.
Method / resource Repetitive sequences comprised 37.69% of the assembly.

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

The Cyperus iria genome assembly has a contig N50 of 7.02 Mb.

Taxon: C. iriaCyperus iriae0
Outcome: contig N50e0
Value: 7.02 Mbe0

Verbatim

e0
“The assembled genome size of C. iria was 479.08 Mb with a contig N50 of 7.02 Mb.”
✓ located verbatim in the source · abstract, characters 241–321

Title

Chromosome-level genome assembly of Cyperus iria, an aggressive weed of rice

Siyu Yang; Qingyi Cao; Zexin Wen; et al. Scientific Data 2025. doi:10.1038/s41597-025-04470-6

Other claims from this paper (6)

Method / resource The assembled Cyperus iria genome is 479.08 Mb.
Method / resource Hi-C scaffolding produced 68 pseudochromosomes.
Method / resource Pseudochromosomes accounted for 99.65% of the assembled genome.
Method / resource The assembly predicts 47,395 protein-coding genes.
Method / resource Of the predicted genes, 93.26% were annotated.
Method / resource Repetitive sequences comprised 37.69% of the assembly.

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Hi-C scaffolding produced 68 pseudochromosomes.

Taxon: Cyperus iriaCyperus iriat0
Outcome: pseudochromosomese0
Value: 68 pseudochromosomese0

Verbatim

e0
“68 pseudochromosomes were produced using Hi-C scaffolding, accounting for 99.65% of the assembled genome.”
✓ located verbatim in the source · abstract, characters 322–427

t0
“Cyperus iria”
✓ located verbatim in the source · title, characters 36–48

Title

Chromosome-level genome assembly of Cyperus iria, an aggressive weed of rice

Siyu Yang; Qingyi Cao; Zexin Wen; et al. Scientific Data 2025. doi:10.1038/s41597-025-04470-6

Other claims from this paper (6)

Method / resource The assembled Cyperus iria genome is 479.08 Mb.
Method / resource The Cyperus iria genome assembly has a contig N50 of 7.02 Mb.
Method / resource Pseudochromosomes accounted for 99.65% of the assembled genome.
Method / resource The assembly predicts 47,395 protein-coding genes.
Method / resource Of the predicted genes, 93.26% were annotated.
Method / resource Repetitive sequences comprised 37.69% of the assembly.

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Pseudochromosomes accounted for 99.65% of the assembled genome.

Taxon: Cyperus iriaCyperus iriat0
Outcome: assembled genomee0
Value: 99.65%e0

Verbatim

e0
“68 pseudochromosomes were produced using Hi-C scaffolding, accounting for 99.65% of the assembled genome.”
✓ located verbatim in the source · abstract, characters 322–427

t0
“Cyperus iria”
✓ located verbatim in the source · title, characters 36–48

Title

Chromosome-level genome assembly of Cyperus iria, an aggressive weed of rice

Siyu Yang; Qingyi Cao; Zexin Wen; et al. Scientific Data 2025. doi:10.1038/s41597-025-04470-6

Other claims from this paper (6)

Method / resource The assembled Cyperus iria genome is 479.08 Mb.
Method / resource The Cyperus iria genome assembly has a contig N50 of 7.02 Mb.
Method / resource Hi-C scaffolding produced 68 pseudochromosomes.
Method / resource The assembly predicts 47,395 protein-coding genes.
Method / resource Of the predicted genes, 93.26% were annotated.
Method / resource Repetitive sequences comprised 37.69% of the assembly.

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

The assembly predicts 47,395 protein-coding genes.

Taxon: Cyperus iriaCyperus iriat0
Outcome: predicted protein-coding genese0
Value: 47,395e0

Verbatim

e0
“The number of predicted protein-coding genes is 47,395, of which 93.26% were annotated, and 37.69% repetitive sequences were identified.”
✓ located verbatim in the source · abstract, characters 428–564

t0
“Cyperus iria”
✓ located verbatim in the source · title, characters 36–48

Title

Chromosome-level genome assembly of Cyperus iria, an aggressive weed of rice

Siyu Yang; Qingyi Cao; Zexin Wen; et al. Scientific Data 2025. doi:10.1038/s41597-025-04470-6

Other claims from this paper (6)

Method / resource The assembled Cyperus iria genome is 479.08 Mb.
Method / resource The Cyperus iria genome assembly has a contig N50 of 7.02 Mb.
Method / resource Hi-C scaffolding produced 68 pseudochromosomes.
Method / resource Pseudochromosomes accounted for 99.65% of the assembled genome.
Method / resource Of the predicted genes, 93.26% were annotated.
Method / resource Repetitive sequences comprised 37.69% of the assembly.

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Of the predicted genes, 93.26% were annotated.

Taxon: Cyperus iriaCyperus iriat0
Outcome: annotatede0
Value: 93.26%e0

Verbatim

e0
“The number of predicted protein-coding genes is 47,395, of which 93.26% were annotated, and 37.69% repetitive sequences were identified.”
✓ located verbatim in the source · abstract, characters 428–564

t0
“Cyperus iria”
✓ located verbatim in the source · title, characters 36–48

Title

Chromosome-level genome assembly of Cyperus iria, an aggressive weed of rice

Siyu Yang; Qingyi Cao; Zexin Wen; et al. Scientific Data 2025. doi:10.1038/s41597-025-04470-6

Other claims from this paper (6)

Method / resource The assembled Cyperus iria genome is 479.08 Mb.
Method / resource The Cyperus iria genome assembly has a contig N50 of 7.02 Mb.
Method / resource Hi-C scaffolding produced 68 pseudochromosomes.
Method / resource Pseudochromosomes accounted for 99.65% of the assembled genome.
Method / resource The assembly predicts 47,395 protein-coding genes.
Method / resource Repetitive sequences comprised 37.69% of the assembly.

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Repetitive sequences comprised 37.69% of the assembly.

Taxon: Cyperus iriaCyperus iriat0
Outcome: repetitive sequencese0
Value: 37.69%e0

Verbatim

e0
“The number of predicted protein-coding genes is 47,395, of which 93.26% were annotated, and 37.69% repetitive sequences were identified.”
✓ located verbatim in the source · abstract, characters 428–564

t0
“Cyperus iria”
✓ located verbatim in the source · title, characters 36–48

Title

Chromosome-level genome assembly of Cyperus iria, an aggressive weed of rice

Siyu Yang; Qingyi Cao; Zexin Wen; et al. Scientific Data 2025. doi:10.1038/s41597-025-04470-6

Other claims from this paper (6)

Method / resource The assembled Cyperus iria genome is 479.08 Mb.
Method / resource The Cyperus iria genome assembly has a contig N50 of 7.02 Mb.
Method / resource Hi-C scaffolding produced 68 pseudochromosomes.
Method / resource Pseudochromosomes accounted for 99.65% of the assembled genome.
Method / resource The assembly predicts 47,395 protein-coding genes.
Method / resource Of the predicted genes, 93.26% were annotated.