Divergence times, historical biogeography, and shifts in speciation rates of Myrtales

Berger, Brent A.; Kriebel, Ricardo; Spalink, Daniel; Sytsma, Kenneth J.

doi:10.1016/j.ympev.2015.10.001

Cited by 131 publications

(134 citation statements)

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“…Matzke, 2014;Berger et al, 2015;T. To our knowledge, this is the highest rate of cladogenetic dispersal observed in any study of this kind to date (e.g.…”

Section: Ancestral Area Estimations Suggest a Tropical Museum But Mulmentioning

confidence: 81%

“…First, we find that an interplay of migration and extinction events between South America and Australia in the Cretaceous, at the exclusion of Africa, account for geographical divergence of early sedge lineages in the Southern Hemisphere. Givnish & Renner, 2004;Sytsma et al, 2004;Viljoen et al, 2013;Berger et al, 2015), coincided with the diversification of tribes Schoeneae, Bisboechelereae, Trilepideae, Rhynchosporeae, Fuireneae and Abildgaardieae. South America and Australia were therefore a nearly continuous landmass until at least the Palaeocene.…”

Section: Ancestral Area Estimations Suggest a Tropical Museum But Mulmentioning

confidence: 92%

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Biogeography of the cosmopolitan sedges (Cyperaceae) and the area‐richness correlation in plants

Spalink

Drew²,

Pace

et al. 2016

Journal of Biogeography

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106

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Aim Across angiosperm families, the area occupied by a family is strongly correlated with its richness. We explore the causes of this area‐richness correlation using the cosmopolitan family, Cyperaceae Juss., as a model. We test the hypothesis that, despite a proposed tropical origin, temperate lineages in the family diversified at elevated rates. We test the hypothesis that the area‐richness correlation is maintained within intrafamilial clades, and that this relationship could be described as a function of niche space. We also test the hypothesis that the partitioning of geographical and ecological space, not the extent of this space, is the factor most closely associated with clade richness. Location Cosmopolitan. Methods We use molecular data from four genes sequenced in 384 taxa to develop a chronogram of Cyperaceae. We then develop a model of ancestral ranges and measure rates of diversification throughout the history of the family. Integrating data from over 4,800,000 digitized herbarium records, we characterize the range and niche of more than 4500 species and test for correlations of the species richness maintained within clades with range size, range partitioning, range overlap, niche, clade age and rate of diversification. Results Cyperaceae originated in South America in the late Cretaceous and subsequently dispersed throughout the globe. Of three increases in diversification rate, two occurred in the temperate Northern Hemisphere. The variable most closely associated with clade richness is the partitioning of geographical space by species within each clade. Main conclusions We show that species‐rich clades in Cyperaceae are not only more widespread, occupy more niche space, and diversify more quickly, but also exhibit patterns that are consistent with the partitioning of geographical and ecological space as a major correlate to diversification.

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“…Matzke, 2014;Berger et al, 2015;T. To our knowledge, this is the highest rate of cladogenetic dispersal observed in any study of this kind to date (e.g.…”

Section: Ancestral Area Estimations Suggest a Tropical Museum But Mulmentioning

confidence: 81%

Section: Ancestral Area Estimations Suggest a Tropical Museum But Mulmentioning

confidence: 92%

Biogeography of the cosmopolitan sedges (Cyperaceae) and the area‐richness correlation in plants

Spalink

Drew²,

Pace

et al. 2016

Journal of Biogeography

Self Cite

106

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“…An updated comprehensive phylogenetic hypothesis for the entire Melastomataceae is overdue, and full plastid sequences would contribute greatly to such an endeavor. Additionally, as sampling increases in the Myrtales, full plastids also might help to narrow down phylogenetic uncertainty in the Myrtales (e.g., Combretaceae position, Berger et al, 2016). Despite the fact that the full plastome phylogeny recovered here shares most of the clades with the widely used “ rbcL + ndhF + rpl16 ” tree, some changes are still observed and bootstrap support is higher.…”

Section: Discussionmentioning

confidence: 99%

“…The observed levels of diversity, endemism or abundance of its members across different habitats make the family an important ecological group, as well as an excellent model for a variety evolutionary studies. The Melastomataceae belong in the Myrtales, where it is sister to the small CAP clade (Crypteroniaceae, Alzateaceae and Penaeaceae), which all together form a clade sister to Myrtaceae + Vochysiaceae (Berger et al, 2016). Plastid markers along with the nuclear ribosomal spacers (nrETS and nrITS) have been the major, and very often the exclusive, source of phylogenetic information in the family.…”

Section: Introductionmentioning

confidence: 99%

The first complete plastid genomes of Melastomataceae are highly structurally conserved

Reginato

Neubig

Majure

et al. 2016

PeerJ

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BackgroundIn the past three decades, several studies have predominantly relied on a small sample of the plastome to infer deep phylogenetic relationships in the species-rich Melastomataceae. Here, we report the first full plastid sequences of this family, compare general features of the sampled plastomes to other sequenced Myrtales, and survey the plastomes for highly informative regions for phylogenetics.MethodsGenome skimming was performed for 16 species spread across the Melastomataceae. Plastomes were assembled, annotated and compared to eight sequenced plastids in the Myrtales. Phylogenetic inference was performed using Maximum Likelihood on six different data sets, where putative biases were taken into account. Summary statistics were generated for all introns and intergenic spacers with suitable size for polymerase chain reaction (PCR) amplification and used to rank the markers by phylogenetic information.ResultsThe majority of the plastomes sampled are conserved in gene content and order, as well as in sequence length and GC content within plastid regions and sequence classes. Departures include the putative presence of rps16 and rpl2 pseudogenes in some plastomes. Phylogenetic analyses of the majority of the schemes analyzed resulted in the same topology with high values of bootstrap support. Although there is still uncertainty in some relationships, in the highest supported topologies only two nodes received bootstrap values lower than 95%.DiscussionMelastomataceae plastomes are no exception for the general patterns observed in the genomic structure of land plant chloroplasts, being highly conserved and structurally similar to most other Myrtales. Despite the fact that the full plastome phylogeny shares most of the clades with the previously widely used and reduced data set, some changes are still observed and bootstrap support is higher. The plastome data set presented here is a step towards phylogenomic analyses in the Melastomataceae and will be a useful resource for future studies.

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“…Disjunctive distribution patterns in many angiosperms are the result of rare long-distance dispersal (LDD) events that have taken place many times during evolution (e.g., Renner et al, 2000;Christenhusz and Chase, 2013;Chacón and Renner, 2014;Berger et al, 2016). The unpredictability and complexity of such events, which imply not only the efficient dispersal of diaspores (seeds, fruits, plant parts) by means of biotic or abiotic vectors, but also successful establishment and survival, depending on a range of factors, makes them very difficult to test (Nathan, 2006;Gillespie et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Biogeographic Events Are Not Correlated with Diaspore Dispersal Modes in Boraginaceae

2017

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Long-distance dispersal seems to be the main biogeographic event responsible for intriguing distribution patterns in plant groups in which sister taxa are separated by thousands of kilometers of distance across oceans and continents. The biotic and abiotic mechanisms behind such dispersal events are poorly understood and many attempts have been made to explain how plants can manage to disperse and survive these long journeys. The biogeographic history of Boraginaceae, a subcosmopolitan plant family with many disjunct clades, is here addressed and analyzed in the context of the different dispersal modes exhibited by the species. The lack of a clear pattern between the main dispersal events in Boraginaceae and the phylogenetic distribution of the dispersal modes indicates that no single dispersal mechanism can be associated with the events of dispersal in the family. Moreover, adaptations to different dispersal agents and unassisted dispersal modes in some clades might have promoted the diversification of Boraginaceae in various habitats across several continents. Our study reveals that long-distance dispersal is a very complex process that needs to be analyzed in the context of climatic and environmental changes and the response of plants and their dispersal vectors to these variable conditions.

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Divergence times, historical biogeography, and shifts in speciation rates of Myrtales

Cited by 131 publications

References 174 publications

Biogeography of the cosmopolitan sedges (Cyperaceae) and the area‐richness correlation in plants

Biogeography of the cosmopolitan sedges (Cyperaceae) and the area‐richness correlation in plants

The first complete plastid genomes of Melastomataceae are highly structurally conserved

Biogeographic Events Are Not Correlated with Diaspore Dispersal Modes in Boraginaceae

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