Produção Nacional
Revisado por pares
Focusing on Genera to Improve Species Identification: Revised Systematics of the Ciliate Spirostomum
2014; Elsevier BV; Volume: 165; Issue: 4 Linguagem: Inglês
10.1016/j.protis.2014.05.004
ISSN1618-0941
AutoresVittorio Boscaro, Daniela Carducci, Giovanna Barbieri, Marcus Vinicius Xavier Senra, Ilaria Andreoli, Fabrizio Erra, Giulio Petroni, Franco Verni, Sergei I. Fokin,
Tópico(s)Marine and coastal ecosystems
ResumoAlthough many papers dealing with the description of new ciliate taxa are published each year, species taxonomy and identification in most groups of the phylum Ciliophora remain confused. This is largely due to a scarcity of surveys on the systematics of immediately higher levels (genera and families) providing data for old and new species together. Spirostomum is a common and distinctive inhabitant of fresh- and brackish water environments, including artificial and eutrophic ones, and is a good model for applied ecology and symbiosis research. Despite this, only 3 of the numerous species are commonly cited, and no studies have yet confirmed their monophyly, with the consequence that reproducibility of the results may be flawed. In this paper we present morphological and molecular data for 30 Spirostomum populations representing 6 different morphospecies, some of which were collected in previously unreported countries. We performed a detailed revision of Spirostomum systematics combining literature surveys, new data on hundreds of organisms and statistical and phylogenetic analyses; our results provide insights on the evolution, ecology and distribution of known morphospecies and a novel one: Spirostomum subtilis sp. n. We also offer tools for quick species identification.
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