Supplementary material from "Species delimitation for the molecular taxonomy and ecology of a widely distributed microbial eukaryotes genus <i>Euplotes</i> (Alveolata, Ciliophora)"

Published on 2018-01-10T10:32:56Z (GMT) by
Recent advances in high-throughput sequencing and metabarcoding technologies are revolutionizing our understanding of the diversity and ecology of microbial eukaryotes (protists). The interpretation of protist diversity and the elucidation of their ecosystem function are, however, impeded by problems with species delimitation, especially as it applies to molecular taxonomy. Here, using the ciliate <i>Euplotes</i> as an example, we describe approaches for species delimitation based on integrative taxonomy by using evolutionary and ecological perspectives and selecting the most appropriate metabarcoding gene markers as proxies for species units. Our analyses show that: <i>Euplotes</i> (<i>sensu lato</i>) comprises six distinct clades, mainly as result of ecological speciation; the validity of the genera <i>Euplotes</i> (<i>sensu stricto</i>), <i>Euplotoides</i>, <i>Euplotopsis</i> and <i>Moneuplotes</i> are not supported; the <i>vannus</i>-type group, which includes species without distinct morphological differences, seems to be undergoing incipient speciation and contains cryptic species; the hypervariable V4 region of the SSU rDNA and D1–D2 region of the LSU rDNA are the promising candidates for general species delimitation in <i>Euplotes</i>.

Cite this collection

Zhao, Yan; Yi, Zhenzhen; Warren, Alan; Song, Weibo (2018): Supplementary material from "Species delimitation for the molecular taxonomy and ecology of a widely distributed microbial eukaryotes genus Euplotes (Alveolata, Ciliophora)". The Royal Society. Collection.