Journal Article
Model based total evidence phylogeny of Neotropical electric knife fishes (Teleostei, Gymnotiformes)
Tagliacollo, V.A., Bernt, M.J., Craig, J.M., Oliveira, C. and Albert, J.S.
Record Number:
4610
Year:
2016
Journal:
Molecular Phylogenetics and Evolution
Pages:
20-33
Volume:
95
Abstract:
This study provides the most comprehensive Model-Based Total Evidence (MBTE) phylogenetic analyses
of the clade Gymnotiformes to date, reappraising relationships using a dataset comprised of six genes
(5277 bp) and 223 morphological characters, and an ingroup taxon sample including 120 of 212 valid
species representing 34 of the 35 extant genera. Our MBTE analyses indicate the two main gymnotiform
clades are Gymnotidae and Sternopygoidei, the latter comprised of Rhamphichthyoidea
(Rhamphichthyidae + Hypopomidae) and Sinusoidea (Sternopygidae + Apteronotidae). Within
Gymnotidae, Electrophorus and Gymnotus are sister taxa, and Gymnotus includes the following six clades:
(i) G. pantherinus clade, (ii) G. coatesi clade, (iii) G. anguillaris clade, (iv) G. tigre clade, (v) G. cylindricus
clade, and (vi) G. carapo clade. Within Rhamphichthyoidea, Steatogenae (Steatogenys + Hypopygus) is a
member of Rhamphichthyidae, and Hypopomidae includes the following clades: (i) Akawaio, (ii)
Hypopomus, (iii) Microsternarchini, and (iv) Brachyhypopomus. Within Sternopygidae, Sternopygus and
Eigenmanninae are sister groups, Rhabdolichops is the sister to other Eigenmanninae, Archolaemus
+ Distocyclus is the sister to Eigenmannia, and Japigny is nested within Eigenmannia. Within
Apteronotidae, Sternarchorhamphinae (Sternarchorhamphus + Orthosternarchus) is the sister to
Apteronotinae, Adontosternarchus is the sister group to other Apteronotinae, Sternarchorhynchini
(Sternarchorhynchus + Platyurosternarchus) is the sister to Navajini, and species assigned to Apteronotus
are members of two separate clades: (i) A. sensu stricto in the Apteronotini, and (ii) the ‘‘A.” bonapartii
clade in the Navajini
Times Cited:
3