Abstract
Abstract Misodendrum comprises eight species of aerial hemiparasites endemic to temperate forests of Chile and Argentina that parasitize Nothofagus. This mistletoe is unique in that it has feathery staminodes on its wind dispersed achenes. Previous classifications included two subgenera, Misodendrum (two sections) and Angelopogon (three sections). The present study tested this classification using two chloroplast genes (trnL-F and matK) and 31 morphological characters. Maximum parsimony, likelihood and Bayesian analyses were performed for individual and combined partitions. Results from analyses of the separate partitions differed only in the positions of M. linearifolium and M. quadriflorum; however, the 2-gene tree gave higher support for M. quadriflorum as sister to all other species. Misodendrum brachystachyum and M. oblongifolium form a well supported clade that is sister to one composed of M. punctulatum, M. gayanum, and M. angulatum. These phylogenetic relationships generally agree with previous taxonomic classifications. Subgenus Misodendrum, characterized by warty stems and two stamens, here resolves as a polytomy: M. punctulatum, M. gayanum, and M. angulatum. Subgenus Angelopogon, characterized by the plesiomorphies three stamens and foliacious bracts, is paraphyletic given our rooting. Misodendrum brachystachyum and M. oblongifolium (section Archiphyllum) differ morphologically only by the length of their fruiting staminodes.
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Claims 7
Claim · model-written summary
Separate partitions differed only in the positions of M. linearifolium and M. quadriflorum.
- Outcome
- positions of M. linearifolium and M. quadriflorume0
Not reportedTaxon
Verbatim
e0“Results from analyses of the separate partitions differed only in the positions of M. linearifolium and M. quadriflorum”
Claim · model-written summary
The two-gene tree gave higher support for M. quadriflorum as sister to all other species.
- Taxon
- Misodendrum
Misodendrumt0 - Outcome
- M. quadriflorum as sister to all other speciese0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Misodendrum”
e0“the 2-gene tree gave higher support for M. quadriflorum as sister to all other species”
Claim · model-written summary
M. brachystachyum and M. oblongifolium form a supported clade sister to the M. punctulatum, M. gayanum, and M. angulatum clade.
- Taxon
- MisodendrumMisodendrume0
- Outcome
- well supported clade that is sister to one composed of M. punctulatum, M. gayanum, and M. angulatume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Misodendrum”
e0“Misodendrum brachystachyum and M. oblongifolium form a well supported clade that is sister to one composed of M. punctulatum, M. gayanum, and M. angulatum.”
Claim · model-written summary
The inferred relationships generally agree with previous classifications.
- Taxon
- MisodendrumMisodendrumt0
- Outcome
- phylogenetic relationships generally agree with previous taxonomic classificationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Misodendrum”
e0“These phylogenetic relationships generally agree with previous taxonomic classifications.”
Claim · model-written summary
Subgenus Misodendrum resolves as a polytomy of M. punctulatum, M. gayanum, and M. angulatum.
- Taxon
- MisodendrumMisodendrume0
- Outcome
- resolves as a polytomy: M. punctulatum, M. gayanum, and M. angulatume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Subgenus Misodendrum, characterized by warty stems and two stamens, here resolves as a polytomy: M. punctulatum, M. gayanum, and M. angulatum.”
Claim · model-written summary
Subgenus Angelopogon is paraphyletic under the authors’ rooting.
- Taxon
- MisodendrumMisodendrumt0
- Material
- Subgenus Angelopogone0
- Outcome
- paraphyletic given our rootinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Misodendrum”
e0“Subgenus Angelopogon, characterized by the plesiomorphies three stamens and foliacious bracts, is paraphyletic given our rooting.”
Claim · model-written summary
M. brachystachyum and M. oblongifolium differ morphologically only in fruiting staminode length.
- Taxon
- MisodendrumMisodendrume0
- Organ / stage
- fruiting staminodese0
- Outcome
- length of their fruiting staminodese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Misodendrum”
e0“Misodendrum brachystachyum and M. oblongifolium (section Archiphyllum) differ morphologically only by the length of their fruiting staminodes.”