Abstract
Winteraceae family consists of 5 genera that are disjunctly distributed in Madagascar, Australasia, Central and South America. Phylogenetic relationships in Winteraceae were reconstructed using the molecular data (ITS-5.8S rDNA and trnL-trnF sequences). Paleobotanical data indicate the origin of Winteraceae in the north of Gondwana in the Lower Cretaceous. The calibration of the phylogenetic tree with 3 fossil records allowed to estimate the divergence time of Takhtajania at ca. 77 Ma, which correlates with the fragmentation of Eastern Gondwana (ca. 84-95 Ma). The origin of Drimys was caused by the breakup of Antarctica and Australia. Disjunctions in Zygogynum can be explained by several episodes of long-distance dispersal.
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Claims 4
Claim · model-written summary
Paleobotanical evidence places the origin of Winteraceae in northern Gondwana in the Lower Cretaceous.
- Taxon
- WinteraceaeWinteraceaee0
- Outcome
- origin of Winteraceaee0
- Value
- Lower Cretaceouse0
- Setting
- the north of Gondwanae0
Verbatim
e0“Paleobotanical data indicate the origin of Winteraceae in the north of Gondwana in the Lower Cretaceous.”
Claim · model-written summary
Fossil-calibrated phylogeny estimates Takhtajania divergence at about 77 Ma.
- Taxon
- Takhtajania
Takhtajaniae0 - Outcome
- divergence timee0
- Value
- ca. 77 Mae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The calibration of the phylogenetic tree with 3 fossil records allowed to estimate the divergence time of Takhtajania at ca. 77 Ma”
Claim · model-written summary
The authors attribute the origin of Drimys to the breakup of Antarctica and Australia.
DrimysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The origin of Drimys was caused by the breakup of Antarctica and Australia.”
Claim · model-written summary
The authors explain Zygogynum disjunctions by several long-distance dispersal episodes.
ZygogynumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Disjunctions in Zygogynum can be explained by several episodes of long-distance dispersal.”