Claim · model-written summary
Area optimization inferred that the geographic origin of Leeaceae was either out-of-Asia (Indochina) or out-of-India.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Verbatim
e1“Area optimization was alsoperformed on the Vitales topology estimated from previously published sequences to locate the geographic origin of Leeaceae, but either an out-of-Asia (i.e. Indochina) or out-of-India origin was inferred possible”
Title
Evolution, pollination biology, and biogeography of the grape relative Leea (Leeaceae, vitales)
Molina, Jeanmaire E. Rutgers University Community Repository (Rutgers University) 2009. doi:10.7282/t3z31zv0
Other claims from this paper (14)
- Observation The molecular phylogeny recovered four major clades of Leea.
- Observation Clade I, represented by L. asiatica, diverged about 65.5 million years ago from the rest of the family.
- Observation Clades II, III and IV form a monophyletic group.
- Observation The Clades II, III and IV group evolved in the Eocene (about 50.8 mya) in Indochina and/or West Malesia.
- Observation Clades II, III and IV exhibit the derived feature of fused stamens.
- Observation Clade IV evolved by the end of the Oligocene (about 25.6 mya).
- Observation Clade IV is unique in having multi-pinnate leaves and small stipules.
- Observation Radiation of Leea species mostly occurred in the Neogene (about 1.8-23.0 mya).
- Observation Africa and Australia were colonized by Neogene dispersals of Asian Leea.
- Recommendation Current species circumscriptions of L. guineensis and L. indica underestimate the genetic diversity of the genus and need to be revised.
- Method / resource An updated checklist of 47 species reflecting the molecular clades is presented, including resurrected and putative new species.
- Recommendation Field studies of three sympatric Philippine Leea morphospecies show that habit and ecology must be considered in species circumscriptions.
- Observation Clade II, the spine-bearing species, is sister to Clade III.
- Observation The primitive free stamens of L. asiatica support its position as the earliest-diverging clade.