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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1111/nph.18083
|2 doi
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|a eng
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|a Soza, Valerie L
|e verfasserin
|4 aut
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| 245 |
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|a The symmetry spectrum in a hybridising, tropical group of rhododendrons
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 20.04.2022
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|a Date Revised 31.07.2022
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|a published: Print-Electronic
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|a Dryad: 10.5061/dryad.47d7wm3f4
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|a Citation Status MEDLINE
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|a © 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation.
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|a Many diverse plant clades possess bilaterally symmetrical flowers and specialised pollination syndromes, suggesting that these traits may promote diversification. We examined the evolution of diverse floral morphologies in a species-rich tropical radiation of Rhododendron. We used restriction-site associated DNA sequencing on 114 taxa from Rhododendron sect. Schistanthe to reconstruct phylogenetic relationships and examine hybridisation. We then captured and quantified floral variation using geometric morphometric analyses, which we interpreted in a phylogenetic context. We uncovered phylogenetic conflict and uncertainty caused by introgression within and between clades. Morphometric analyses revealed flower symmetry to be a morphological continuum without clear transitions between radial and bilateral symmetry. Tropical Rhododendron species that began diversifying into New Guinea c. 6 million years ago expanded into novel floral morphological space. Our results showed that the evolution of tropical Rhododendron is characterised by recent speciation, recurrent hybridisation and the origin of floral novelty. Floral variation evolved via changes to multiple components of the corolla that are only recognised in geometric morphometrics with both front and side views of flowers
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Rhododendron
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|a New Guinea
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| 650 |
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|a Southeast Asia
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|a Vireyas
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| 650 |
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|a flower symmetry
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| 650 |
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|a introgression
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| 650 |
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4 |
|a morphometrics
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| 650 |
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|a phylogenetics
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| 700 |
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|a Kriebel, Ricardo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ramage, Elizabeth
|e verfasserin
|4 aut
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| 700 |
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|a Hall, Benjamin D
|e verfasserin
|4 aut
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| 700 |
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|a Twyford, Alex D
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1984
|g 234(2022), 4 vom: 11. Mai, Seite 1491-1506
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnas
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| 773 |
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|g volume:234
|g year:2022
|g number:4
|g day:11
|g month:05
|g pages:1491-1506
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|u http://dx.doi.org/10.1111/nph.18083
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