Description and Phylogeny of Tetrakeronopsis silvanetoi gen. nov., sp nov (Hypotricha, Pseudokeronopsidae), a New Benthic Marine Ciliate from Brazil

作者：Paiva Thiago da Silva^*; Cavalcante de Albuquerque Amanda Ferreira; Borges Barbara do Nascimento; Harada Maria Lucia

来源：PLos One, 2014, 9(2): e88954.

DOI：10.1371/journal.pone.0088954

Pseudokeronopsidae Borror & Wicklow, 1983 are biotechnologically important ciliate protists which produce toxic defense substances; however, their diversity is still little known in Brazil. In the present study, Tetrakeronopsis silvanetoi, a new genus and species of marine pseudokeronopsid hypotrichs is described from samples of water with bottom sediment collected from the coast of Sao Paulo state. Its phylogenetic affinities to the "core urostyloids" are hypothesized based on analyses of the 18S-rDNA marker, and a new subfamily, the Nothoholostichinae subfam. nov., is erected to name the monophylum composed of pseudokeronopsids in which the anterior corona is usually formed by four frontal cirri. In addition, the new combination Monocoronella longissima comb. nov. is proposed for Nothoholosticha longissima (Dragesco & DragescoKerneis, 1986) Li et al., 2009.

• 出版日期2014-2-24