Phylogeny, adaptive radiation, and historical biogeography in Bromeliaceae: Insights from an eight‐locus plastid phylogeny
| Autor: | Benjamin W. van Ee, Harry E. Luther, Thomas J. Givnish, Kenneth J. Sytsma, Klaus Winter, Ralf Horres, Rachel S. Jabaily, Philip A. Gonsiska, Timothy M. Evans, Bruce K. Holst, Paul E. Berry, Darren M. Crayn, Gregory K. Brown, Ricarda Riina, J. Andrew C. Smith, Michael H. J. Barfuss, Katharina Schulte, Walter Till, Georg Zizka |
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| Rok vydání: | 2011 |
| Předmět: |
Bromeliaceae
Poales DNA Plant Encholirium Molecular Sequence Data Plant Science Pitcairnioideae Genes Plant Evolution Molecular Dyckia Genetics Plastids Phylogeny Ecology Evolution Behavior and Systematics Plant Proteins NdhF Likelihood Functions biology Ecology Bayes Theorem NADH Dehydrogenase Tillandsioideae Sequence Analysis DNA biology.organism_classification Biological Evolution Aechmea Bromelioideae Sequence Alignment |
| Zdroj: | American Journal of Botany. 98:872-895 |
| ISSN: | 1537-2197 0002-9122 |
| Popis: | Premise : Bromeliaceae form a large, ecologically diverse family of angiosperms native to the New World. We use a bromeliad phylogeny based on eight plastid regions to analyze relationships within the family, test a new, eight-subfamily classifi cation, infer the chronology of bromeliad evolution and invasion of different regions, and provide the basis for future analyses of trait evolution and rates of diversifi cation. Methods : We employed maximum-parsimony, maximum-likelihood, and Bayesian approaches to analyze 9341 aligned bases for four outgroups and 90 bromeliad species representing 46 of 58 described genera. We calibrate the resulting phylogeny against time using penalized likelihood applied to a monocot-wide tree based on plastid ndhF sequences and use it to analyze patterns of geographic spread using parsimony, Bayesian inference, and the program S-DIVA. Results : Bromeliad subfamilies are related to each other as follows: (Brocchinioideae, (Lindmanioideae, (Tillandsioideae, (Hechtioideae, (Navioideae, (Pitcairnioideae, (Puyoideae, Bromelioideae))))))). Bromeliads arose in the Guayana Shield ca. 100 million years ago (Ma), spread centrifugally in the New World beginning ca. 16 – 13 Ma, and dispersed to West Africa ca. 9.3 Ma. Modern lineages began to diverge from each other roughly 19 Ma. Conclusions : Nearly two-thirds of extant bromeliads belong to two large radiations: the core tillandsioids, originating in the Andes ca. 14.2 Ma, and the Brazilian Shield bromelioids, originating in the Serro do Mar and adjacent regions ca. 9.1 Ma. |
| Databáze: | OpenAIRE |
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