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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Systematics of stalked jellyfishes (Cnidaria: Staurozoa)

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Author(s):
Miranda, Lucilia S. [1] ; Hirano, Yayoi M. [2] ; Mills, Claudia E. [3, 4] ; Falconer, Audrey [5, 6] ; Fenwick, David ; Marques, Antonio C. [1, 7] ; Collins, Allen G. [8]
Total Authors: 7
Affiliation:
[1] Univ Sao Paulo, Inst Biociencias, Dept Zool, Sao Paulo - Brazil
[2] Nat Hist Museum & Inst, Coastal Branch, Katsuura, Chiba - Japan
[3] Univ Washington, Friday Harbor Labs, Friday Harbor, WA 98250 - USA
[4] Univ Washington, Dept Biol, Friday Harbor, WA - USA
[5] Field Naturalists Club Victoria, Marine Res Grp, Melbourne, Vic - Australia
[6] Museum Victoria, Dept Sci, Melbourne, Vic - Australia
[7] Univ Sao Paulo, Ctr Biol Marinha, Sao Paulo - Brazil
[8] Smithsonian Inst, Natl Museum Nat Hist, Natl Systemat Lab, Natl Marine Fisheries Serv, Washington, DC 20560 - USA
Total Affiliations: 8
Document type: Journal article
Source: PeerJ; v. 4, MAY 5 2016.
Web of Science Citations: 13
Abstract

Staurozoan classification is highly subjective, based on phylogeny-free inferences, and suborders, families, and genera are commonly defined by homoplasies. Additionally, many characters used in the taxonomy of the group have ontogenetic and intraspecific variation, and demand new and consistent assessments to establish their correct homologies. Consequently, Staurozoa is in need of a thorough systematic revision. The aim of this study is to propose a comprehensive phylogenetic hypothesis for Staurozoa, providing the first phylogenetic classification for the group. According to our working hypothesis based on a combined set of molecular data (mitochondrial markers COI and 16S, and nuclear markers ITS, 18S, and 28S), the traditional suborders Cleistocarpida (animals with claustrum) and Eleutherocarpida (animals without claustrum) are not monophyletic. Instead, our results show that staurozoans are divided into two groups, herein named Amyostaurida and Myostaurida, which can be distinguished by the absence/presence of interradial longitudinal muscles in the peduncle, respectively. We propose a taxonomic revision at the family and genus levels hat preserves the monophyly of taxa. We provide a key for staurozoan genera and discuss the evolution of the main characters used in staurozoan taxonomy. (AU)

FAPESP's process: 13/50484-4 - Biodiversity and distribution patterns of the Medusozoa form the South-Western Atlantic
Grantee:Antonio Carlos Marques
Support type: Regular Research Grants
FAPESP's process: 11/50242-5 - Dimensions of marine life: patterns and process of diversifications in planktonic and benthic cnidarians
Grantee:Antonio Carlos Marques
Support type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 10/07362-7 - Evolution in Staurozoa: molecular, morphological, cnidome and developmental subsidies
Grantee:Lucília Souza Miranda
Support type: Scholarships in Brazil - Doctorate