By organism › Green plants › Lythraceae › Trapa

Observationobservedoriginal resultmeasured

Claim · model-written summary

Asian AA species with large fruits show clear genetic differentiation between Yangtze River and Amur River clades.

Taxon: TrapaTrapat0
Material: species with AA genome and large fruitse1
Outcome: genetic differentiation was found between two cladese1
Setting: Yangtze River and Amur River basinse1

Verbatim

t0
“aquatic plant genus Trapa”
✓ located verbatim in the source · title, characters 83–108

e1
“For the species with AA genome and large fruits, clear genetic differentiation was found between two clades with different geographic origins, that is, from the Yangtze River and Amur River basins”
✓ located verbatim in the source · abstract, characters 446–642

Title

Genomic resequencing unravels species differentiation and polyploid origins in the aquatic plant genus Trapa

Xiangrong Fan; Minghao Qu; Nancy Rybicki; et al. The Plant Journal 2025. doi:10.1111/tpj.70463

Other claims from this paper (5)

Observationobservedoriginal resultmeasured

Claim · model-written summary

The invasive AA species in North America originated from the Amur River.

Taxon: TrapaTrapat0
Material: invasive AA speciese2
Outcome: originating from the Amur Rivere2
Setting: North Americae2

Verbatim

t0
“aquatic plant genus Trapa”
✓ located verbatim in the source · title, characters 83–108

e2
“The invasive AA species in North America (T. natans) was identified as originating from the Amur River based on genetic and morphological similarities”
✓ located verbatim in the source · abstract, characters 644–794

Title

Genomic resequencing unravels species differentiation and polyploid origins in the aquatic plant genus Trapa

Xiangrong Fan; Minghao Qu; Nancy Rybicki; et al. The Plant Journal 2025. doi:10.1111/tpj.70463

Other claims from this paper (5)

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

All cultivated accessions are AA species from the Yangtze River with severe genetic impoverishment.

Taxon: TrapaTrapat0
Material: cultivated accessionse3
Outcome: genetic impoverishmente3
Setting: Yangtze Rivere3

Verbatim

t0
“aquatic plant genus Trapa”
✓ located verbatim in the source · title, characters 83–108

e3
“while all the cultivated accessions were AA species originating from the Yangtze River with severe genetic impoverishment”
✓ located verbatim in the source · abstract, characters 796–917

Title

Genomic resequencing unravels species differentiation and polyploid origins in the aquatic plant genus Trapa

Xiangrong Fan; Minghao Qu; Nancy Rybicki; et al. The Plant Journal 2025. doi:10.1111/tpj.70463

Other claims from this paper (5)

Observationobservedoriginal resultmeasured

Claim · model-written summary

The two BB species with small seeds were separated by both morphological and genetic evidence.

Taxon: TrapaTrapat0
Material: two BB species with small seedse4
Outcome: separation of the two BB speciese4

Verbatim

t0
“aquatic plant genus Trapa”
✓ located verbatim in the source · title, characters 83–108

e4
“The separation of the two BB species with small seeds, that is, T. incisa and T. maximowiczii, was strongly supported by both morphological and genetic evidence”
✓ located verbatim in the source · abstract, characters 919–1079

Title

Genomic resequencing unravels species differentiation and polyploid origins in the aquatic plant genus Trapa

Xiangrong Fan; Minghao Qu; Nancy Rybicki; et al. The Plant Journal 2025. doi:10.1111/tpj.70463

Other claims from this paper (5)

Mechanismobservedoriginal resultmeasured

Claim · model-written summary

Asian allotetraploids (AABB) originated through hybridization between AA and BB diploids, supported by nuclear and chloroplast evidence.

Taxon: TrapaTrapat0
Material: Asian allotetraploids (AABB)e5
Outcome: originated through hybridizatione5
Qualifier: supported by nuclear and chloroplast evidencee5

Verbatim

t0
“aquatic plant genus Trapa”
✓ located verbatim in the source · title, characters 83–108

e5
“Asian allotetraploids (AABB) originated through hybridization between AA diploids from the Yangtze River Basin and BB diploids T. maximowiczii, supported by nuclear and chloroplast evidence”
✓ located verbatim in the source · abstract, characters 1192–1381

Title

Genomic resequencing unravels species differentiation and polyploid origins in the aquatic plant genus Trapa

Xiangrong Fan; Minghao Qu; Nancy Rybicki; et al. The Plant Journal 2025. doi:10.1111/tpj.70463

Other claims from this paper (5)

Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

The invasive North American tetraploids have an AACC-like genome, suggesting an independent polyploidization.

Taxon: TrapaTrapat0
Material: invasive North American tetraploids (T. bispinosa var. iinumai)e6
Outcome: AACC-like genomee6
Qualifier: independent polyploidizatione7

Verbatim

t0
“aquatic plant genus Trapa”
✓ located verbatim in the source · title, characters 83–108

e6
“the invasive North American tetraploids (T. bispinosa var. iinumai) exhibited an AACC-like genome”
✓ located verbatim in the source · abstract, characters 1396–1493

e7
“suggesting an independent polyploidization involving an unknown”
✓ located verbatim in the source · abstract, characters 1495–1558

Title

Genomic resequencing unravels species differentiation and polyploid origins in the aquatic plant genus Trapa

Xiangrong Fan; Minghao Qu; Nancy Rybicki; et al. The Plant Journal 2025. doi:10.1111/tpj.70463

Other claims from this paper (5)

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

Three-dimensional reconstruction enabled accurate comparison of compressed Trapa fruit fossils with extant species.

Taxon: TrapaTrapae0
Outcome: accurate comparisons with extant speciese0
Comparator: extant speciese0

Verbatim

e0
“The three-dimensional reconstruction of Trapa fruit fossils enabled accurate comparisons with extant species.”
✓ located verbatim in the source · abstract, characters 772–881

Title

Three-dimensional reconstruction of Late Miocene Trapa from eastern Zhejiang Province, China: Insights into its phytogeography and evolution

Liang Xiao; Man Yuan; De-Shuang Ji; et al. Journal of Palaeogeography 2024. doi:10.1016/j.jop.2024.08.002

Other claims from this paper (7)

Observation The fossil was identified as a new species, Trapa radiatiformis L. Xiao sp. nov.
Observation Early Trapa fruits may inherently have long lower horns and a residual stalk.
Observation The lower horns and residual stalk gradually degenerated during fruit evolution.
Observation Trapa radiatiformis resembles Trapa natans fruit morphology and may be its ancestor.
Observation Fossil Trapa was most prosperous in the Miocene.
Observation Fossil Trapa had the same distribution as at present.
Observation Trapa and Hemitrapa may be homologous and share a common ancestor.

Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Early Trapa fruits may inherently have long lower horns and a residual stalk.

Taxon: TrapaTrapae0
Organ / stage: fruitse0
Outcome: long lower horns and residual stalke0
Qualifier: may represent inherent characteristics of early Trapa fruitse0

Verbatim

e0
“our comparison suggests that the long lower horns and residual stalk may represent inherent characteristics of early Trapa fruits.”
✓ located verbatim in the source · abstract, characters 1047–1177

Title

Three-dimensional reconstruction of Late Miocene Trapa from eastern Zhejiang Province, China: Insights into its phytogeography and evolution

Liang Xiao; Man Yuan; De-Shuang Ji; et al. Journal of Palaeogeography 2024. doi:10.1016/j.jop.2024.08.002

Other claims from this paper (7)

Method / resource Three-dimensional reconstruction enabled accurate comparison of compressed Trapa fruit fossils with extant species.
Observation The fossil was identified as a new species, Trapa radiatiformis L. Xiao sp. nov.
Observation The lower horns and residual stalk gradually degenerated during fruit evolution.
Observation Trapa radiatiformis resembles Trapa natans fruit morphology and may be its ancestor.
Observation Fossil Trapa was most prosperous in the Miocene.
Observation Fossil Trapa had the same distribution as at present.
Observation Trapa and Hemitrapa may be homologous and share a common ancestor.

Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

The lower horns and residual stalk gradually degenerated during fruit evolution.

Taxon: TrapaTrapae2
Organ / stage: fruite0
Outcome: long lower horns and residual stalke1
Direction: gradually degeneratede0
Qualifier: during geological timee0

Verbatim

e0
“these traits gradually degenerated during fruit evolution, resulting in morphological simplification during geological time.”
✓ located verbatim in the source · abstract, characters 1187–1311

e1
“long lower horns and residual stalk”
✓ located verbatim in the source · abstract, characters 1080–1115

e2
“early Trapa fruits”
✓ located verbatim in the source · abstract, characters 1158–1176

Title

Three-dimensional reconstruction of Late Miocene Trapa from eastern Zhejiang Province, China: Insights into its phytogeography and evolution

Liang Xiao; Man Yuan; De-Shuang Ji; et al. Journal of Palaeogeography 2024. doi:10.1016/j.jop.2024.08.002

Other claims from this paper (7)

Method / resource Three-dimensional reconstruction enabled accurate comparison of compressed Trapa fruit fossils with extant species.
Observation The fossil was identified as a new species, Trapa radiatiformis L. Xiao sp. nov.
Observation Early Trapa fruits may inherently have long lower horns and a residual stalk.
Observation Trapa radiatiformis resembles Trapa natans fruit morphology and may be its ancestor.
Observation Fossil Trapa was most prosperous in the Miocene.
Observation Fossil Trapa had the same distribution as at present.
Observation Trapa and Hemitrapa may be homologous and share a common ancestor.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Fossil Trapa was most prosperous in the Miocene.

Taxon: TrapaTrapae1
Outcome: most prosperous in the Miocenee0
Direction: most prosperouse0

Verbatim

e0
“the genus was most prosperous in the Miocene”
✓ located verbatim in the source · abstract, characters 1588–1632

e1
“fossil Trapa”
✓ located verbatim in the source · abstract, characters 1516–1528

Title

Three-dimensional reconstruction of Late Miocene Trapa from eastern Zhejiang Province, China: Insights into its phytogeography and evolution

Liang Xiao; Man Yuan; De-Shuang Ji; et al. Journal of Palaeogeography 2024. doi:10.1016/j.jop.2024.08.002

Other claims from this paper (7)

Trapa 69 claims

69 claims