Journal Article
Patterns of diversification and phylogenetic structure in the dorsolateral head musculature of Neotropical electric eels (Ostariophysi: Gymnotiformes), with a myological synonymy
Peixoto, L.A.W. and de Pinna, M.
Record Number:
5813
Year:
2022
Journal:
Neotropical Ichthyology
Pages:
1-117
Volume:
20(1):e210009
Abstract:
The present study offers a broad comparative analysis of the dorsolateral head
musculature in the Gymnotiformes, with detailed descriptions and illustrations
of the dorsolateral head muscles of 83 species representing combined all
valid genera. Results permit a detailed assessment of primary homologies and
taxonomically-relevant variation across the order. This provides the basis for a
myological synonymy, which organizes 33 previously proposed names for 15
recognized muscles. Morphological variation derived from dorsolateral head
musculature was coded into 56 characters. When analyzed in isolation, that set of
characters results in Gymnotidae as the sister group of remaining gymnotiforms,
and all other currently recognized families as monophyletic groups. In a second
analysis, myological characters were concatenated with other previously
proposed characters into a phenotypic matrix. Results of that analysis reveal
new myological synapomorphies for nearly all taxonomic categories within
Gymnotiformes. A Partitioned Bremer Support (PBS) was used to asses the
significance of comparative myology in elucidating phylogenetic relationships.
PBS values show strongly non-uniform distributions on the tree, with positive
scores skewed towards more inclusive taxa, and negative PBS values concentrated
on less inclusive clades. Our results provide background for future studies on
biomechanical constraints evolved in the early stages of gymnotiform evolution.
Keywords: Anatomy, Electric fishes, Myology, Phylogeny, Partitioned Bremer
Support.
Times Cited:
1
Relevent Species:
Related Records:
Trajano, E. and de Souza, A. M. (1994)
Behaviour of Ancistrus cryptophthalmus an armoured blind catfish from caves of central Brazil, with notes on syntopic Trichomycterus sp. (Siluriformes, Loricariidae, Trichomycteridae)
Triques, ML (1996)Eigenmannia vicentespelaea, a new species of cave dwelling electrogenic neotropical fish (Ostariophysi: Gymnotiformes: Sternopygidae)
Bichuette, M.E. (2001)Populational study and compared behaviour of Eigenmannia species from Goias, Central Brazil (Ostariophysi: Gymnotiformes: Sternopygidae)
Albert, J.S. (2001)Species diversity and phylogenetic systematics of American knifefishes (Gymnotiformes, Teleostei).
Fernandez, L. and Bichuette, M.E. (2002)A new cave dwelling species of Ituglanis from the Sao Domingos karst, central Brazil (Siluriformes: Trichomycteridae)
Bichuette, M.E. and Trajano, E (2003)Epigean and subterranean ichthyofauna from the Sao Domingos karst area, Upper Tocantins River basin, central Brazil
Bichuette, M.E. (2003)Distribuicao, biologia, ecologia populacional e comportamento de peixes subterraneos, generos Ituglanis (Siluriformes: Trichomycteridae) e Eigenmannia (Gymnotiformes: Sternopygidae) da area carstica de Sao Domingos, nordeste de Goias
Reis, R.E., Kullander, S.O. and Ferraris, C.J. (2003)Checklist of the freshwater fishes of South and Central America
Moyses, C.B., Mockford, S., Almeida-Toledo, F. and Wright, J.M. (2005)Nine polymorphic microsatellite loci in the Neotropical electric eel Eigenmannia (Teeleostei: Gymnotiformes)
Bichuette, M.E. and Trajano, E. (2006)Morphology and distribution of the cave knifefish Eigenmannia vicentespelaea Triques, 1996 (Gymnotiformes: Sternopygidae) from central Brazil, with expanded diagnosis and comments on subterranean evolution
Bichuette, M.E. (2008)Eigenmannia vicentespelaea Triques 1996
Bichuette, M.E. and Trajano, E. (2015)Population density and habitat of an endangered cave fish Eigenmannia vicentespelaea Triques, 1996 (Ostariophysi: Gymnotiformes) from a karst area in central Brazil
Peixoto, L.A.W., Dutra, G.M. and Wosiacki, W.B. (2015)The Electric Glass Knifefishes of the Eigenmannia trilineata species-group (Gymnotiformes:
Sternopygidae): monophyly and description of seven new species
Trajano, E., Gallao, J.E. and Bichuette, M.E. (2016)Spots of high biodiversity of troglobites in Brazil: the challenge of measuring subterranean diversity
Ferraris, C.J., de Santana, C.D. and Vari, R.P. (2017)Checklist of Gymnotiformes (Osteichthyes: Ostariophysi) and catalogue of primary types
Fortune, E., Andanar, N., Madhav, M., Jayakumar, R., Cowan, N., Bichuette, M.L. and Soares, D. (2017)Differences in electromotor behaviors in blind electric cavefish and their surface relatives
Bichuette, M.E. and Trajano, E. (2017)Biology and behavior of Eigenmannia vicentespelaea, a troglobitic electric fish from Brazil (Teleostei: Gymnotiformes: Sternopygidae): a comparison to the epigean species, E. trilineata, and the consequences of cave life
Gallão, J.E. and Bichuette M.E. (2018)Brazilian obligatory subterranean fauna and threats to the hypogean environment
Lin, R., Ge, J., Tran, P., Alberto Perea, L., Toole, R. and Fok, M.P. (2018)Biomimetic photonics: jamming avoidance system in Eigenmannia
Waltz, B.T. and Albert, J.S. (2018)Family Sternopygidae - Glass knifefishes, Rattail knifefishes
Bichuette, M.E., Simões, L.B., Zepon, T., von Schimonsky, D.M. and Gallão, J.E. (2019)Richness and taxonomic distinctness of cave invertebrates from the northeastern state of Goiás, central Brazil: a vulnerable and singular area
Soares, D., Andanar, N., Madhav, M., Jayakumar, R., Cowan, N., Bichuette, B. and Fortune, E.S. (2019)Differences in electrosocial behavior in troglobitic and epigean Eigenmannia
Peixoto, L.A.W. and Ohara, W.M. (2019)A new species of Eigenmannia Jordan & Evermann (Gymnotiformes: Sternopygidae) from rio Tapajo´s, Brazil, with discussion on its species group and the myology within Eigenmanniinae
Crampton, W.G.R. (2019)Electroreception, electrogenesis and electric signal evolution
Fortune, E.S., Andanar, N., Madhav, M., Jayakumar, R., Cowan, N.J., Bichuette, M.E. and Soares, D. (2019)Spooky interaction at a distance in cave and surface dwelling electric fishes
Waltz, B.T. (2019)Systematics and evolution of the Glass Knifefishes Eigenmannia (Gymnotiformes: Sternopygidae): Cryptic diversity in a morphologically-conserved group
Peixoto, L.A.W., Pastana, M.N.L. and Ballen, G.A. (2021)New species of glass knifefish genus Eigenmannia (Gymnotiformes: Sternopygidae) with comments on the morphology and function of the enlarged cephalic lateral-line
canals of Sternopygidae
Dutra, G.M., Peixoto, L.A.W., Abrahão, V.P., Wosiacki, W.B., Menezes, N.A. and de Santana, C.D. (2021)Morphology-based phylogeny of Eigenmanniinae Mago-Leccia 1978 (Teleostei: Gymnotiformes: Sternopygidae), with a new classification.
Ford, K.L. and Albert, J.S. (2022)Is the medium the message? Functional diversity across abiotic gradients in freshwater
electric fishes. Electric fish functional diversity
Araya-Jaime, C.A., Mazzoni Zerbinato de Andrade Silva, D., Ribeiro da Silva, L.R., Neves do Nascimento, C., Oliveira, C., Foresti, F. (2022)Karyotype description and comparative chromosomal mapping of rDNA and U2 snDNA sequences in Eigenmannia limbata and E. microstoma (Teleostei, Gymnotiformes, Sternopygidae)
Peixoto, L.A.W. and de Pinna, M. (2022)Patterns of diversification and phylogenetic structure in the dorsolateral head musculature of Neotropical electric eels (Ostariophysi: Gymnotiformes), with a myological synonymy
Soares, D. (2022)Evolutionary insights and constraints from the nervous systems and behavior of cavefish
Soares, D., Gallman, K., Bichuette, M.E. and Fortune, E.S. (2023)Adaptive shift of active electroreception in weakly electric fish for troglobitic life