10.5061/DRYAD.CR788
Lee, Michael S. Y.
South Australian Museum
Sanders, Kate L.
University of Adelaide
King, Benedict
Flinders University
Palci, Alessandro
University of Adelaide
Data from: Diversification rates and phenotypic evolution in venomous
snakes (Elapidae)
Dryad
dataset
2015
Reptiles
Aipysurus
speciation rates
Hydrophis
Serpentes
Hydrophiinae
2015-12-09T15:21:37Z
2015-12-09T15:21:37Z
en
https://doi.org/10.1098/rsos.150277
4989166 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
The relationship between rates of diversification and of body size change
(a common proxy for phenotypic evolution) was investigated across
Elapidae, the largest radiation of highly venomous snakes. Time-calibrated
phylogenetic trees for 175 species of elapids (more than 50% of known
taxa) were constructed using seven mitochondrial and nuclear genes.
Analyses using these trees revealed no evidence for a link between
speciation rates and changes in body size. Two clades (Hydrophis,
Micrurus) show anomalously high rates of diversification within Elapidae,
yet exhibit rates of body size evolution almost identical to the general
elapid ‘background’ rate. Although correlations between speciation rates
and rates of body size change exist in certain groups (e.g. ray-finned
fishes, passerine birds), the two processes appear to be uncoupled in
elapid snakes. There is also no detectable shift in diversification
dynamics associated with the colonization of Australasia, which is
surprising given that elapids appear to be the first clade of venomous
snakes to reach the continent.
File_1 : Molecular Alignment in nexus/MrBayes formatThe full molecular
alignment in nexus format, with all MrBayes commands appended. Plain text
executable file.File_1_elapids_mrb.txtFile_2: Size data for elapids
(Excel)Average and maximum body lengths for elapids, with literature
sources, in Excel format.File_2_sizeData.xlsxFile_3: BAMM datafiles
(zipped)All datafiles for BAMM analyses of diversification rates and body
size, in zipped format. Each analysis has a Tree file, control file, and
data file (species diversity and sampling, or body
size).File_3_BAMM_files.zipFile_4: BayesTraits files (zipped)Data files
for analysis of relationship between rates of speciation and rates of body
size evolution, for BayesTraits, in zipped format. Tree file and datafile
with speciation and size data for all
tips.File_4_BayesTraits_files.zipTables S1-2 and Figs S1-S6 (pdf)Pdf file
of Supplementary Tables S1-2 and Supplementary Figures
S1-S6.FigsS1-S6_TabS1-2_Final.pdf
South America
Asia
Australasia
Africa