By organism › Green plants › Pteridaceae › Ceratopteris richardii

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

The authors produced an expression atlas for diploid and haploid fern reproductive organ development.

Taxon: Ceratopteris richardiiCeratopteris richardiie1
Organ / stage: diploid and haploid reproductive organ developmente0
Outcome: gene expression atlase0

Not reportedComparatorValue

Verbatim

e0
“we create a gene expression atlas of fern diploid and haploid reproductive organ development”
✓ located verbatim in the source · abstract, characters 467–559

t0
“seedless plants”
✓ located verbatim in the source · title, characters 51–66

e1
“the homosporous fern Ceratopteris richardii”
✓ located verbatim in the source · abstract, characters 375–418

Title

The post-fertilization archegonium gene network of seedless plants contributed to the origin of seeds

Plackett, Andrew R.G.; id_orcid 0000-0002-2321-7849; Catoni, Marco; et al. University of Birmingham Research Portal (University of Birmingham) 2026

Other claims from this paper (3)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Antheridium development began with asymmetric divisions creating sterile and spermatogenous lineages.

Taxon: Ceratopteris richardiiCeratopteris richardiit0
Organ / stage: antheridiume0
Outcome: asymmetric cell divisionse0

Verbatim

e0
“antheridium development begins with highly conserved asymmetric cell divisions, giving rise to distinct sterile and spermatogenous cell lineages”
✓ located verbatim in the source · abstract, characters 800–944

t0
“Ceratopteris richardii”
✓ located verbatim in the source · title, characters 106–128

Title

Cell division and lineage dynamics during antheridium differentiation and male gametophyte development in Ceratopteris richardii

Xi Yang; An Yan; Xing Liu; et al. Communications Biology 2026. doi:10.1038/s42003-026-10135-w

Other claims from this paper (3)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Spermatogenous cells proliferated synchronously and continuously before differentiating into motile sperm.

Taxon: Ceratopteris richardiiCeratopteris richardiit0
Organ / stage: Spermatogenous cellse0
Outcome: synchronized and continuous proliferation, followed by programmed differentiatione0

Verbatim

e0
“Spermatogenous cells undergo synchronized and continuous proliferation, followed by programmed differentiation, eventually forming motile sperm released from mature antheridia”
✓ located verbatim in the source · abstract, characters 946–1121

t0
“Ceratopteris richardii”
✓ located verbatim in the source · title, characters 106–128

Title

Cell division and lineage dynamics during antheridium differentiation and male gametophyte development in Ceratopteris richardii

Xi Yang; An Yan; Xing Liu; et al. Communications Biology 2026. doi:10.1038/s42003-026-10135-w

Other claims from this paper (3)

Observationobservedoriginal resultmeasured

Claim · model-written summary

The sterile lineage divided only to a limited extent and formed support tissue.

Taxon: Ceratopteris richardiiCeratopteris richardiit0
Organ / stage: sterile lineagee0
Outcome: limited cell divisions, forming structural support tissuese0

Verbatim

e0
“the sterile lineage undergoes limited cell divisions, forming structural support tissues surrounding the spermatogenous core”
✓ located verbatim in the source · abstract, characters 1136–1260

t0
“Ceratopteris richardii”
✓ located verbatim in the source · title, characters 106–128

Title

Cell division and lineage dynamics during antheridium differentiation and male gametophyte development in Ceratopteris richardii

Xi Yang; An Yan; Xing Liu; et al. Communications Biology 2026. doi:10.1038/s42003-026-10135-w

Other claims from this paper (3)

Mechanismobservedoriginal resultmeasured

Claim · model-written summary

Quantitative analysis identified cellular bases for antagonistic effects of antheridiogen and abscisic acid on initiation and proliferation.

Taxon: Ceratopteris richardiiCeratopteris richardiit0
Compound: antheridiogen and abscisic acide0
Outcome: antheridium initiation and spermatogenous cell proliferatione0

Verbatim

e0
“quantitative analyses reveal the cellular basis underlying the previously reported antagonistic effects of the pheromone antheridiogen and abscisic acid on antheridium initiation and spermatogenous cell proliferation”
✓ located verbatim in the source · abstract, characters 1275–1491

t0
“Ceratopteris richardii”
✓ located verbatim in the source · title, characters 106–128

Title

Cell division and lineage dynamics during antheridium differentiation and male gametophyte development in Ceratopteris richardii

Xi Yang; An Yan; Xing Liu; et al. Communications Biology 2026. doi:10.1038/s42003-026-10135-w

Other claims from this paper (3)

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

The authors produced a gene expression atlas of fern diploid and haploid reproductive organ development.

Taxon: Ceratopteris richardiiCeratopteris richardiie1
Outcome: gene expression atlase0

Not reportedValue

Verbatim

e0
“we create a gene expression atlas of fern diploid and haploid reproductive organ development”
✓ located verbatim in the source · abstract, characters 467–559

e1
“homosporous fern Ceratopteris richardii”
✓ located verbatim in the source · abstract, characters 379–418

Title

The post-fertilization archegonium gene network of seedless plants contributed to the origin of seeds

Andrew R. G. Plackett; Marco Catoni Nature Communications 2026. doi:10.1038/s41467-026-74577-w

Other claims from this paper (3)

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Over-expression of CrLFY1/2 reveals a role in fern gametophyte reproduction.

Taxon: Ceratopteris richardiiCeratopteris richardiit0
Organ / stage: gametophytee1
Treatment: over-expressione1
Gene: CrLFY1/2e1
Outcome: fern gametophyte reproductione1

Not reportedComparatorDirection

Verbatim

t0
“the fern Ceratopteris richardii”
✓ located verbatim in the source · title, characters 102–133

e1
“Using over-expression, we uncover new roles for CrLFY1/2 in fern gametophyte reproduction, in sperm cells and in the gametophyte's multicellular notch meristem”
✓ located verbatim in the source · abstract, characters 764–923

Title

LEAFY demonstrates functions in reproductive development of the gametophyte but not the sporophyte of the fern Ceratopteris richardii

Hannah McConnell; Jancee R. Lanclos; Katelynn Willis; et al. Development 2025. doi:10.1242/dev.204808

Other claims from this paper (4)

Intervention effect Over-expression of CrLFY1/2 reveals roles in gametophyte sperm cells and the notch meristem.
Intervention effect Over-expression did not detect a sporophytic reproductive function in time to sporing.
Intervention effect Over-expression supports a role of CrLFY1/2 in frond compounding.
Intervention effect Over-expression supports a role of CrLFY1/2 in the zygote's first cell division.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Over-expression of CrLFY1/2 reveals roles in gametophyte sperm cells and the notch meristem.

Taxon: Ceratopteris richardiiCeratopteris richardiit0
Treatment: over-expressione1
Gene: CrLFY1/2e1
Outcome: sperm cells and in the gametophyte's multicellular notch meristeme1

Not reportedComparatorDirection

Verbatim

t0
“the fern Ceratopteris richardii”
✓ located verbatim in the source · title, characters 102–133

e1
“Using over-expression, we uncover new roles for CrLFY1/2 in fern gametophyte reproduction, in sperm cells and in the gametophyte's multicellular notch meristem”
✓ located verbatim in the source · abstract, characters 764–923

Title

LEAFY demonstrates functions in reproductive development of the gametophyte but not the sporophyte of the fern Ceratopteris richardii

Hannah McConnell; Jancee R. Lanclos; Katelynn Willis; et al. Development 2025. doi:10.1242/dev.204808

Other claims from this paper (4)

Intervention effect Over-expression of CrLFY1/2 reveals a role in fern gametophyte reproduction.
Intervention effect Over-expression did not detect a sporophytic reproductive function in time to sporing.
Intervention effect Over-expression supports a role of CrLFY1/2 in frond compounding.
Intervention effect Over-expression supports a role of CrLFY1/2 in the zygote's first cell division.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Over-expression did not detect a sporophytic reproductive function in time to sporing.

Taxon: Ceratopteris richardiiCeratopteris richardiit0
Treatment: over-expressione2
Outcome: time to sporinge2
Qualifier: no sporophytic reproductive function was detectede2

Not reportedComparatorDirection

Verbatim

t0
“the fern Ceratopteris richardii”
✓ located verbatim in the source · title, characters 102–133

e2
“While no sporophytic reproductive function was detected in terms of time to sporing, over-expression supports a role in frond compounding and in the zygote's first cell division”
✓ located verbatim in the source · abstract, characters 925–1102

Title

LEAFY demonstrates functions in reproductive development of the gametophyte but not the sporophyte of the fern Ceratopteris richardii

Hannah McConnell; Jancee R. Lanclos; Katelynn Willis; et al. Development 2025. doi:10.1242/dev.204808

Other claims from this paper (4)

Intervention effect Over-expression of CrLFY1/2 reveals a role in fern gametophyte reproduction.
Intervention effect Over-expression of CrLFY1/2 reveals roles in gametophyte sperm cells and the notch meristem.
Intervention effect Over-expression supports a role of CrLFY1/2 in frond compounding.
Intervention effect Over-expression supports a role of CrLFY1/2 in the zygote's first cell division.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Over-expression supports a role of CrLFY1/2 in frond compounding.

Taxon: Ceratopteris richardiiCeratopteris richardiit0
Treatment: over-expressione2
Outcome: frond compoundinge2

Not reportedComparatorDirection

Verbatim

t0
“the fern Ceratopteris richardii”
✓ located verbatim in the source · title, characters 102–133

e2
“While no sporophytic reproductive function was detected in terms of time to sporing, over-expression supports a role in frond compounding and in the zygote's first cell division”
✓ located verbatim in the source · abstract, characters 925–1102

Title

LEAFY demonstrates functions in reproductive development of the gametophyte but not the sporophyte of the fern Ceratopteris richardii

Hannah McConnell; Jancee R. Lanclos; Katelynn Willis; et al. Development 2025. doi:10.1242/dev.204808

Other claims from this paper (4)

Intervention effect Over-expression of CrLFY1/2 reveals a role in fern gametophyte reproduction.
Intervention effect Over-expression of CrLFY1/2 reveals roles in gametophyte sperm cells and the notch meristem.
Intervention effect Over-expression did not detect a sporophytic reproductive function in time to sporing.
Intervention effect Over-expression supports a role of CrLFY1/2 in the zygote's first cell division.

Ceratopteris richardii 382 claims

382 claims