10.5061/DRYAD.VQ83BK3SJ
Nürk, Nicolai M.
0000-0002-0471-644X
University of Bayreuth
Bitencourt, Cássia
State University of Feira de Santana
Rapini, Alessandro
0000-0002-8758-9326
State University of Feira de Santana
Fishbein, Mark
0000-0003-3099-4387
Oklahoma State University
Simões, André O.
State University of Campinas
Middleton, David J.
Singapore Botanic Gardens
Meve, Ulrich
University of Bayreuth
Endress, Mary E.
0000-0002-8660-2285
University of Zurich
Liede-Schumann, Sigrid
University of Bayreuth
Data from: Evolution of dispersal, habit, and pollination in Africa pushed
Apocynaceae diversification after the Eocene-Oligocene climate transition
Dryad
dataset
2021
FOS: Biological sciences
Asclepiadoideae
Apocynaceae
APSA clade
rauvolfioids
apocynoids
Biogeography
diversification rate shifts
diversification dynamics
long-distance dispersal (LDD)
Gondwana
Laurasia
Deutsche Forschungsgemeinschaft
https://ror.org/018mejw64
NU292/4-1
Coordenação de Aperfeicoamento de Pessoal de Nível Superior
https://ror.org/00x0ma614
#1514632
CNPQ – Productivity Fellowship*
307396/2019-3
2021-10-20T00:00:00Z
2021-10-20T00:00:00Z
en
https://doi.org/10.3389/fevo.2021.719741
https://doi.org/10.5281/zenodo.5579157
3066516309 bytes
5
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Apocynaceae (the dogbane and milkweed family) is one of the ten largest
flowering plant families, with approximately 5,350 species and diverse
morphology and ecology, ranging from large trees and lianas that are
emblematic of tropical rainforests, to herbs in temperate grasslands, to
succulents in dry, open landscapes, and to vines in a wide variety of
habitats. Despite a specialized and conservative basic floral
architecture, Apocynaceae are hyperdiverse in flower size, corolla shape,
and especially derived floral morphological features. These are mainly
associated with the development of corolline and/or staminal coronas and a
spectrum of integration of floral structures culminating with the
formation of a gynostegium and pollinaria—specialized pollen dispersal
units. To date, no detailed analysis has been conducted to estimate the
origin and diversification of this lineage in space and time. Here, we use
the most comprehensive time-calibrated phylogeny of Apocynaceae, which
includes approximately 20% of the species covering all major lineages, and
information on species number and distributions obtained from the most
up-to-date monograph of the family to investigate the biogeographical
history of the lineage and its diversification dynamics. South America,
Africa, and Southeast Asia (potentially including Oceania), were recovered
as the most likely ancestral area of extant Apocynaceae diversity; this
tropical climatic belt in the equatorial region retained the oldest extant
lineages and these three tropical regions likely represent museums of the
family. Africa was confirmed as the cradle of pollinia-bearing lineages
and the main source of Apocynaceae intercontinental dispersals. We
detected 12 shifts toward accelerated species diversification, of which 11
were in the APSA clade (apocynoids, Periplocoideae, Secamonoideae, and
Asclepiadoideae), eight of these in the pollinia-bearing lineages and six
within Asclepiadoideae. Wind-dispersed comose seeds, climbing growth form,
and pollinia appeared sequentially within the APSA clade and probably work
synergistically in the occupation of drier and cooler habitats. Overall,
we hypothesize that temporal patterns in diversification of Apocynaceae
was mainly shaped by a sequence of morphological innovations that
conferred higher capacity to disperse and establish in seasonal, unstable,
and open habitats, which have expanded since the Eocene-Oligocene climate
transition.
Phylogenetic data from Fishbein et al. (2018) Am J Bot doi:
10.1002/ajb2.1067. Distribution data from Endress et al. (2018)
“Apocynaceae,” in Flowering Plants. Eudicots. Apiales and Gentianales
(except Rubiaceae), ed. J. W. Kadereit and V. Bittrich, in Families and
Genera of Vascular Plants. Vol. 15, ed. K. Kubitzki (Berlin: Springer),
208–411. Analyses are processed in the R statistical
framework; all scripts are accessible through this Dryad DOI.
The data file contains: 1) a metadata file
"Readme_Nuerk_Apocynaceae.Biogeo.Div.txt" that details and
defines the folders and files with variables, and allowable values, 2)
three folders: (a) DATA: the complete dataset (as CSV) and the
phylogenetic tree (as NEWICK), plus a subfolder per analysis (BAMM,
BioGeoBEARS, MiSSE) including analysis-specific input files derived
from the complete dataset. Additionally, the original trees from Fishbein
et al. 2018 are included. (b) RESULTS: main plots and tables produced in
the analyses used to prepare the results (numbered according to
Figs/Tabs). (c) RESULTS_full: contains a folder for each BAMM, MiSSE, and
BioGeoBEARS analysis. Each folder contains plots (as pdf) and tables
(tab-delimited text file), and the objects produced in R (as RDATA file;
the workspace that contains functions and value objects created in R).