1887

Abstract

Coccoid green algae are extremely diverse despite their simple coccoid phenotype, a phenotype that may be the result of convergent evolution. In this study, we used a polyphasic approach combining molecular phylogenetic analyses, morphology and ultrastructure to investigate isolated coccoid strains from China, and our results reveal three new lineages of Trebouxiophyceae: the novel genus and species gen. et sp. nov., and the two novel species sp. nov. and sp. nov. (Trebouxiophyceae, Chlorophyta). We provide a detailed characterization of the novel microalgae which they are autosporic coccoid unicells and have parietal chloroplasts. In phylogenies based on 18S rDNA sequences and the chloroplast ribulose-bisphosphate carboxylase gene (L), these three algae are nested within the clade and are different from any known algae. FACHB-1787 is not really close to any known algae within the clade. FACHB-2212 is within the lineages. FACHB-1793 is closely related to and described as a representative of a novel species of the genus .

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2016-12-01
2021-10-20
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