Collins, A.G.

Marques, Antonio Carlos

Miranda, Lucília Souza

Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP)

  Universidade de São Paulo
 
2015
 
Phylogenetic signal of nematocysts in
Staurozoa (Cnidaria)
 
 
 
http://www.producao.usp.br/handle/BDPI/49781
 
Downloaded from: Biblioteca Digital da Produção Intelectual - BDPI, Universidade de São Paulo
Biblioteca Digital da Produção Intelectual - BDPI
Centro de Biologia Marinha - CEBIMar Comunicações em Eventos - CEBIMar
11/02/2016 Evolution 2015 | Home
http://evolution2015.org/ 1/4
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
Sunday June 28, 19:00 ‐ 21:00 PM
Poster Session II
PO‐603 Reduced cellular immune response in social insect lineages
Margarita M López‐Uribe
PO‐612 Phylogenetic signal of nematocysts in Staurozoa (Cnidaria)
Lucilia Souza Miranda
PO‐615 Revisiting ecogeographic hypotheses behind latitudinal morphological variation: climatic correlates of body size in Torrent Ducks
Natalia Gutierrez‐Pinto
PO‐637 BREEDING SYSTEM EVOLUTION INFLUENCED THE GEOGRAPHIC EXPANSION AND DIVERSIFICATION OF THE CORVIDES
Petter Zahl Marki
PO‐638 Breeding system transitions and the evolution of reproductive isolation in the large and diverse tropical genus Dendrobium (Orchidaceae)
Fabio Pinheiro
PO‐649 Diversification dynamics of Placentalia (Mammalia): integrating the fossil record with molecular phylogenies
Mauro Toshiro Caiuby Sugawara
PO‐651 Use of wing geometry to diagnose cryptic species of the Anopheles (Nyssorhynchus) strodei complex
Flávia Virginio Fonseca
PO‐666 Variability in the micro and macroevolutionary scales: a review of the patterns of morphological variability in the Cnidaria Medusozoa
Amanda Ferreira e Cunha
PO‐674 The turtle ants: understanding the diversification of a socially complex lineage and its associated microbes
Shauna Price
PO‐681 First molecular phylogeny of the sea‐star Echinaster (Asteroidea:Echinodermata) reveals a non‐monophyletic genus and insights for evolutionary history
Elinia Medeiros Lopes
PO‐683 Molecular evolution of Odorant Receptors proteins gene family in two closely related Anastrepha fruit flies .
Diana Marcela Rojas Gallardo
PO‐684 Scorched Mussels (Brachidontes spp.) from the Southwestern Atlantic: the role of the Isthmus of Panama and the Amazon River in their Speciation
Berenice Trovant
PO‐685 A BLASTP‐free clustering method for classifying orthologs within a single gene family
Stephen Bond
PO‐686 Tempo and mode of climatic niche evolution in Primates
Andressa Duran
PO‐687 Molecular phylogeny of the Utricularia sect. Foliosa Kamiénski complex addressed using rps16, trnD‐T, trnL‐F and ITS sequences
Paulo Cesar Baleeiro
PO‐688 Diversification at large body sizes: Morphological novelty and ecological opportunity in Neotropical armoured catfishes (Loricariidae)
Fabio F Roxo
Phylogenetic signal of nematocysts in Staurozoa (Cnidaria) 
 
Miranda, L.S.1; Collins, A.G.2; Marques, A.C.1,3 
1Universidade de São Paulo, Instituto de Biociências, Departamento de Zoologia, São 
Paulo, 
SP, Brazil. 
2National Systematics Laboratory, National Marine Fisheries Service (NMFS), National 
Museum 
of Natural History, Smithsonian Institution, Washington DC, USA. 
3Universidade de São Paulo, Centro de Biologia Marinha, São Sebastião, SP, Brazil. 
 
Description of cnidome is considered important information for taxonomic studies of 
Cnidaria, although their value in identifying species has been recently questioned. 
Staurozoa has the least diverse cnidome among medusozoan cnidarians, with two types 
of nematocysts, euryteles and isorhizas. These nematocysts are concentrated in two 
main regions: the secondary tentacles and the white spots on the subumbrella. The aim 
of this study is to assess the taxonomic and evolutionary information contained by the 
cnidome from 17 species of Staurozoa. We employ our working hypothesis of 
evolutionary relationships within Staurozoa to comparatively analyze the phylogenetic 
signal of nematocysts from secondary tentacles and white spots of nematocysts, as 
measured with traditional and geometric morphometrics. Additionally, we generate a 
phylogenetic hypothesis based exclusively on continuous characters derived from 
nematocysts, as an independent test of the molecular hypothesis. Our results suggest 
that there is significant phylogenetic signal in the nematocysts from secondary tentacles, 
and the combined use of nematocysts from secondary tentacles and white spots can be 
useful to distinguish species. The possible relationship of phylogenetic signal and 
development of nematocysts in Staurozoa is discussed, as well as the possible 
evolutionary pressures involved in the presence and absence of phylogenetic signal. 


Phylogenetic signal of nematocysts in Staurozoa (Cnidaria)

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