By organism › Green plants › Zamiaceae › Zamiaceae

Observationobservedoriginal resultmeasured

Claim · model-written summary

Caleosins from Stangeriaceae are absent from the H clade.

Taxon: StangeriaceaeZamiaceaee1
Outcome: absent in the H cladee1

Not reportedDirection

Verbatim

e1
“Caleosins from Araucariaceae, Podocarpaceae, Sciadopityaceae, and Stangeriaceae are absent in the H clade”
✓ located verbatim in the source · abstract, characters 832–937

Title

Origin, evolution and diversification of plant caleosins

Zaibao Zhang; Tao Xiong; Kejia Li; et al. BMC Plant Biology 2025. doi:10.1186/s12870-025-06463-4

Other claims from this paper (8)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Caleosins from Zamiaceae are missing from the L clade.

Taxon: ZamiaceaeZamiaceaee1
Outcome: missing in the L cladee1

Not reportedDirection

Verbatim

e1
“those from Ginkgoaceae, Gnetaceae, Pinaceae, and Zamiaceae are missing in the L clade”
✓ located verbatim in the source · abstract, characters 943–1028

Title

Origin, evolution and diversification of plant caleosins

Zaibao Zhang; Tao Xiong; Kejia Li; et al. BMC Plant Biology 2025. doi:10.1186/s12870-025-06463-4

Other claims from this paper (8)

Observationhypothesisoriginal resultbasis n/a

Claim · model-written summary

The authors infer Australian and American Zamiaceae genera came from Pangea before Jurassic continental drift.

Taxon: ZamiaceaeZamiaceaee0
Outcome: came from Pangea before continental drift in Jurassic Periode0

Not reportedDirection

Verbatim

e0
“we thought that these genera of Zamiaceae in Australia and America came from Pangea before continental drift in Jurassic Period”
✓ located verbatim in the source · abstract, characters 4771–4898

Title

Studies on Tracheary Element of Several Native Cycad Species in Australia and Two American Plants

Yuyuan Huang; Harvey Ottley; Yolande Yep; et al. American Journal of Plant Sciences 2022. doi:10.4236/ajps.2022.131010

Other claims from this paper (19)

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Zamiaceae species had thicker leaves than Cycadaceae species.

Taxon: Zamiaceae speciesZamiaceaee0
Outcome: thicker leavese0
Direction: thickere0
Comparator: Cycadaceae speciese0

Verbatim

e0
“Zamiaceae species exhibiting thicker leaves, higher carbon investments and greater Fp than Cycadaceae species”
✓ located verbatim in the source · abstract, characters 915–1024

Title

Correlations between leaf economics, mechanical resistance and drought tolerance across 41 cycad species

Yi-Yi Meng; Wei Xiang; Yin Wen; et al. Annals of Botany 2021. doi:10.1093/aob/mcab146

Other claims from this paper (10)

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Zamiaceae species had higher carbon investments than Cycadaceae species.

Taxon: Zamiaceae speciesZamiaceaee0
Outcome: carbon investmentse0
Direction: highere0
Comparator: Cycadaceae speciese0

Verbatim

e0
“Zamiaceae species exhibiting thicker leaves, higher carbon investments and greater Fp than Cycadaceae species”
✓ located verbatim in the source · abstract, characters 915–1024

Title

Correlations between leaf economics, mechanical resistance and drought tolerance across 41 cycad species

Yi-Yi Meng; Wei Xiang; Yin Wen; et al. Annals of Botany 2021. doi:10.1093/aob/mcab146

Other claims from this paper (10)

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Zamiaceae species had greater mechanical resistance (Fp) than Cycadaceae species.

Taxon: Zamiaceae speciesZamiaceaee0
Outcome: Fpe0
Direction: greatere0
Comparator: Cycadaceae speciese0

Verbatim

e0
“Zamiaceae species exhibiting thicker leaves, higher carbon investments and greater Fp than Cycadaceae species”
✓ located verbatim in the source · abstract, characters 915–1024

Title

Correlations between leaf economics, mechanical resistance and drought tolerance across 41 cycad species

Yi-Yi Meng; Wei Xiang; Yin Wen; et al. Annals of Botany 2021. doi:10.1093/aob/mcab146

Other claims from this paper (10)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Whole chloroplast genome phylogeny did not support monophyly of Stangeriaceae.

Taxon: StangeriaceaeZamiaceaee0
Outcome: not monophyletice0

Verbatim

e0
“Analysis of the whole cp genomes in phylogeny also supports that the previously recognized family—Stangeriaceae—which contained Bowenia and Stangeria , is not monophyletic.”
✓ located verbatim in the source · abstract, characters 1849–2021

Title

The complete chloroplast genome of Microcycas calocoma (Miq.) A. DC. (Zamiaceae, Cycadales) and evolution in Cycadales

Aimee Caye G. Chang; Qiang Lai; Tao Chen; et al. PeerJ 2020. doi:10.7717/peerj.8305

Other claims from this paper (16)

Method / resource The first plastid genome of Microcycas calocoma was reported.
Observation The plastid genome length was 165,688 bp.
Observation The plastid genome contained 134 annotated genes.
Observation The plastid genome contained 86 protein-coding genes.
Observation The plastid genome contained 47 non-coding RNA genes, including 39 tRNA and eight rRNA.
Observation The plastid genome contained one pseudogene.
Observation Cycad genomes showed highly similar profiles, indicating slow evolution and little variation.
Observation Inverted repeat regions had fewer similarities, indicating higher polymorphism.
Observation Conserved non-coding regions appeared more divergent.
Observation Exon variation was less discernible, indicating more conserved sequences.
Observation Microcycas was closest to Zamia and grouped with Ceratozamia and Stangeria.
Observation Stangeria grouped with Neotropical cycads.
Observation Bowenia grouped with Southern Hemisphere cycads.
Observation All Cycas species formed a distinct clade apart from other genera.
Observation Dioon lay outside the remaining Zamiaceae clades.
Observation The chloroplast topology agreed with a two-family classification of extant Cycadales.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Stangeriaceae are among South Africa's most threatened plant families, with 70% of cycad species threatened.

Taxon: StangeriaceaeZamiaceaee0
Outcome: species threatenede0
Direction: most threatenede0
Value: 70%e0
Qualifier: cycad families (Stangeriaceae and Zamiaceae)e0
Setting: South Africae0

Verbatim

e0
“the most threatened plant families in South Africa are the cycad families (Stangeriaceae and Zamiaceae) with 70% of the species threatened”
✓ located verbatim in the source · abstract, characters 93–231

Title

South Africa's most threatened plants : CREW

Domitilla Ramondo Veld & Flora 2010

Other claims from this paper (8)

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Zamiaceae are among South Africa's most threatened plant families, with 70% of cycad species threatened.

Taxon: ZamiaceaeZamiaceaee0
Outcome: species threatenede0
Direction: most threatenede0
Value: 70%e0
Qualifier: cycad families (Stangeriaceae and Zamiaceae)e0
Setting: South Africae0

Verbatim

e0
“the most threatened plant families in South Africa are the cycad families (Stangeriaceae and Zamiaceae) with 70% of the species threatened”
✓ located verbatim in the source · abstract, characters 93–231

Title

South Africa's most threatened plants : CREW

Domitilla Ramondo Veld & Flora 2010

Other claims from this paper (8)

Observationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Stangeriaceae was inferred nonmonophyletic, with Stangeria closer to Zamia and Ceratozamia.

Taxon: StangeriaceaeZamiaceaee0
Outcome: not monophyletice0

Verbatim

e0
“the cycad family Stangeriaceae (Stangeria and Bowenia) is not monophyletic, and that Stangeria is instead more closely related to Zamia and Ceratozamia”
✓ located verbatim in the source · abstract, characters 814–965

Title

Molecular phylogenetic studies of the vascular plants

Rai, Hardeep Singh Open Collections 2009. doi:10.14288/1.0066904

Other claims from this paper (12)

Observation Three well supported vascular plant lineages were recovered: lycophytes, monilophytes and seed plants.
Observation Cycad and conifer phylogenetic backbones received strong support.
Observation Pinaceae was recovered as sister to all other conifers.
Recommendation Cephalotaxus and Phyllocladus were proposed for Taxaceae and Podocarpaceae respectively.
Method / resource Rapidly evolving characters induced Gnetales sister group misinference, particularly with maximum parsimony.
Method / resource Removing rapidly evolving characters appeared to reduce systematic error in seed plant relationships.
Method / resource Filtering rapidly evolving characters had little effect on conifer and monilophyte higher order relationships.
Method / resource Filtering rapidly evolving characters generally reduced backbone support.
Observation Most monilophyte backbone relationships received strong support and generally agreed with recent studies.
Observation Equisetaceae may be sister to the remaining monilophytes.
Observation Marattiaceae may be sister to leptosporangiate ferns.
Method / resource Major monilophyte relationships varied with outgroup and long lycophyte branches.

Zamiaceae 19 claims

19 claims