The evolutionary history of<i>Eugenia</i>sect.<i>Phyllocalyx</i>(Myrtaceae) corroborates historically stable areas in the southern Atlantic forests

Bünger, Mariana de Oliveira; Mazine, Fiorella Fernanda; Forest, Félix; Bueno, Marcelo Leandro; Stehmann, João Renato; Lucas, Eve

doi:10.1093/aob/mcw209

Cited by 29 publications

(13 citation statements)

References 89 publications

(106 reference statements)

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“…S7). Dates in brackets are from the macrofossil calibrated analysis; * signifies single species representation, in these cases ancestral areas and dates from Bünger & al. (2016b).…”

Section: Resultsmentioning

confidence: 99%

“…DNA extraction, sequencing and alignment. -Extraction of total genomic DNA and amplification and purification of target DNA regions were performed according to the protocols outlined in Bünger & al. (2016b).…”

Section: Methodsmentioning

confidence: 99%

“…(1996) and again the same PCR conditions as trnQ-rps16. Sequencing protocols followed Bünger & al. (2016b).…”

Section: Methodsmentioning

confidence: 99%

“…Molecular phylogenetic studies of the genus described as Phyllocalyx (Bünger & al., 2016b) show that it is paraphyletic, with the well-supported clade containing most species previously placed in E. sect. Phyllocalyx and its type (E. involucrata DC.)…”

Section: Introductionmentioning

confidence: 99%

“…The species in this group share showy flowers with equally showy, frequently foliaceous calyx lobes (Niedenzu, 1893). Bünger & al. (2016b) assigned 26 species to this clade, distributed from northeast Brazil to Argentina.…”

Section: Introductionmentioning

confidence: 99%

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Phylogeny and biogeography of the hyper–diverse genus Eugenia (Myrtaceae: Myrteae), with emphasis on E. sect. Umbellatae, the most unmanageable clade

Mazine

Faria

Giaretta

et al. 2018

TAXON

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Eugenia, comprising ca. 1100 species, is the largest genus of Neotropical Myrtaceae. Eugenia sect. Umbellatae (formerly referred to as “clade 9”) is the most speciose lineage of Eugenia. This study aims to better delimit E. sect. Umbellatae, to identify and understand relationships between manageable subgroups of this large clade for future discrete systematic studies and to explain biogeographical patterns in the genus. In total, 103 samples were used in this study. These include representatives of the nine clades of the “Eugenia group” with a particular focus on Eugenia clade 9, representing the morphological and geographical diversity found in the genus. Phylogenetic reconstructions were performed using maximum likelihood (ML) and Bayesian inference (BI) for the combined dataset, using the markers ITS, rpl16, psbA–trnH, rpl32–trnL, trnQ–rps16. The resultant tree was fossil calibrated and used for historical biogeographical analysis using DEC implemented in RASP. The mid Oligocene is the most likely period in which the crown node of Eugenia s.l. diversified. The earliest Eugenia appear to be associated with dry biomes and to have arisen from non–tropical southern South America, as did ancestors of the earliest American Myrteae. Eugenia subg. Pseudeugenia also most likely diversified in dry biomes, while E. subg. Hexachlamys and E. subg. Eugenia are likely to have diverged in the Atlantic Forests biome. Eugenia sect. Umbellatae is morphologically very variable; some clades can be circumscribed based on morphology while some remain morphologically undiagnosable. The study presented here provides discussion of the earliest origins of Eugenia and its response to climate–driven changes in the Neotropics as humid, forest biomes became more widespread in the Miocene. In addition, important practical conclusions are drawn regarding relationships within Eugenia. Three clades are newly classified as subgenera: E. subg. Pseudeugenia (including species of E. sect. Pseudeugenia); E. subg. Hexachlamys (including E. sect. Hexachlamys) and E. subg. Eugenia (including E. sect. Umbellatae,E. sect. Jossinia,E. sect. Phyllocalyx,E. sect. Pilothecium,E. sect. Racemosae,E. sect. Schizocalomyrtus, E. sect. Speciosae and Eugenia sect. Excelsae). Two previously unidentified clades are published as E. sect. Excelsae and recognized as E. sect. Jossinia, the latter consisting entirely of Old World species.

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“…S7). Dates in brackets are from the macrofossil calibrated analysis; * signifies single species representation, in these cases ancestral areas and dates from Bünger & al. (2016b).…”

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…(1996) and again the same PCR conditions as trnQ-rps16. Sequencing protocols followed Bünger & al. (2016b).…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Phylogeny and biogeography of the hyper–diverse genus Eugenia (Myrtaceae: Myrteae), with emphasis on E. sect. Umbellatae, the most unmanageable clade

Mazine

Faria

Giaretta

et al. 2018

TAXON

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Ecological niche modeling and a lack of phylogeographic structure in Vriesea incurvata suggest historically stable areas in the southern Atlantic Forest

Aguiar-Melo

Zanella

Göetze

et al. 2019

American J of Botany

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Premise Despite the efforts to understand the processes that shape neotropical biodiversity, the complexity of certain biomes, such as the Atlantic Forest (AF), prevents the generalization of patterns. Initially, ecological niche modeling (ENM), with phylogeographic studies, identified past stable areas in the central and northern portions of the AF, while the southern portion was thought to be highly fragmented. Here, we examined the phylogeography, historical patterns, genetic diversity, and population structure of Vriesea incurvata, an endemic species of the southern portion of the AF. Methods We evaluated 149 individuals using two plastid DNA regions (cpDNA) and 13 nuclear microsatellite markers (nuSSRs) to access the historical patterns, genetic diversity, and structure of V. incurvata populations. We also conducted historical demography and ENM analyses. Results We found moderate to high genetic diversity and low population structure for both genomes. The cpDNA network revealed high haplotype sharing. The ENM suggested no drastic changes in suitable areas for V. incurvata occurrence, corroborating the finding of no phylogeographic structure. Conclusions Contrary to some studies, our results indicate that the southern AF was a historically stable climate region for V. incurvata occupation after southward colonization by the species. Past climatic changes probably did not cause structuring among its populations.

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Towards a species‐level phylogeny for Neotropical Myrtaceae: Notes on topology and resources for future studies

Staggemeier,

Amorim,

Bünger

et al. 2024

American J of Botany

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PremiseIncreasingly complete phylogenies underpin studies in systematics, ecology, and evolution. Myrteae (Myrtaceae), with ~2700 species, is a key component of the exceptionally diverse Neotropical flora, but given its complicated taxonomy, automated assembling of molecular supermatrices from public databases often lead to unreliable topologies due to poor species identification.MethodsHere, we build a taxonomically verified molecular supermatrix of Neotropical Myrteae by assembling 3909 published and 1004 unpublished sequences from two nuclear and seven plastid molecular markers. We infer a time‐calibrated phylogenetic tree that covers 712 species of Myrteae (~28% of the total diversity in the clade) and evaluate geographic and taxonomic gaps in sampling.ResultsThe tree inferred from the fully concatenated matrix mostly reflects the topology of the plastid data set and there is a moderate to strong incongruence between trees inferred from nuclear and plastid partitions. Large, species‐rich genera are still the poorest sampled within the group. Eastern South America is the best‐represented area in proportion to its species diversity, while Western Amazon, Mesoamerica, and the Caribbean are the least represented.ConclusionsWe provide a time‐calibrated tree that can be more reliably used to address finer‐scale eco‐evolutionary questions that involve this group in the Neotropics. Gaps to be filled by future studies include improving representation of taxa and areas that remain poorly sampled, investigating causes of conflict between nuclear and plastid partitions, and the role of hybridization and incomplete lineage sorting in relationships that are poorly supported.

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The evolutionary history ofEugeniasect.Phyllocalyx(Myrtaceae) corroborates historically stable areas in the southern Atlantic forests

Cited by 29 publications

References 89 publications

Phylogeny and biogeography of the hyper–diverse genus Eugenia (Myrtaceae: Myrteae), with emphasis on E. sect. Umbellatae, the most unmanageable clade

Phylogeny and biogeography of the hyper–diverse genus Eugenia (Myrtaceae: Myrteae), with emphasis on E. sect. Umbellatae, the most unmanageable clade

Ecological niche modeling and a lack of phylogeographic structure in Vriesea incurvata suggest historically stable areas in the southern Atlantic Forest

Towards a species‐level phylogeny for Neotropical Myrtaceae: Notes on topology and resources for future studies

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