Joint Phylogenetic Estimation of Geographic Movements and Biome Shifts during the Global Diversification of Viburnum
| Autor: | Patrick W. Sweeney, Michael J. Donoghue, Brian Park, Michael J. Landis, Wendy L. Clement, Deren A. R. Eaton, Elizabeth L. Spriggs, Erika J. Edwards |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Old World Lineage (evolution) Biogeography Biome Forests 010603 evolutionary biology 01 natural sciences 03 medical and health sciences Genetics Ecology Evolution Behavior and Systematics Ecosystem Phylogeny 030304 developmental biology Cloud forest 0303 health sciences biology Ecology Fossils Viburnum 15. Life on land biology.organism_classification Phylogeography Geography 13. Climate action Molecular phylogenetics Temperate rainforest |
| Zdroj: | Systematic biology. 70(1) |
| ISSN: | 1076-836X |
| Popis: | Phylogeny, fossils, biogeography, and biome occupancy provide evidence that reflects the singular evolutionary history of a clade. Despite the connections that bind them together, these lines of evidence are most often studied separately, by first inferring a fossil-dated molecular phylogeny, then mapping on ancestral ranges and biomes inferred from extant species. Here we jointly model the evolution of biogeographic ranges, biome affinities, and molecular sequences, incorporating fossils to estimate a dated phylogeny for all of the 163 extant species of the woody plant cladeViburnum(Adoxaceae) that we currently recognize. Our analyses indicate that while the majorViburnumlineages evolved in the Eocene, the majority of extant species originated since the Miocene.Viburnumradiated first in Asia, in warm, broad-leaved evergreen (lucidophyllous) forests. Within Asia we infer several early shifts into more tropical forests, and multiple shifts into forests that experience prolonged freezing. From Asia we infer two early movements into the New World. These two lineages probably first occupied warm temperate forests and adapted later to spreading cold climates. One of these lineages (Porphyrotinus) occupied cloud forests and moved south through the mountains of the Neotropics. Several other movements into North America took place more recently, facilitated by prior adaptations to freezing in the Old World. We also infer four disjunctions between Asia and Europe: theTinuslineage is the oldest and probably occupied warm forests when it spread, while the other three were more recent and in cold-adapted lineages. These results variously contradict published accounts, especially the view thatViburnumradiated initially in cold forests and, accordingly, maintained vessel elements with scalariform perforations. We explored how the location and biome assignments of fossils affected our inference of ancestral areas and biome states. Our results are sensitive to, but not entirely dependent upon, the inclusion of fossil biome data. We argue that it will be critical to take advantage of all available lines of evidence to decipher events in the distant past, and the joint estimation approach developed here provides cautious hope even when fossil evidence is limited. |
| Databáze: | OpenAIRE |
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