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Issue: Vol. 670 No. 1: 24 Oct. 2024
Type: Article
Published: 2024-10-24
DOI: 10.11646/phytotaxa.670.1.6
Page range: 63-71
Abstract views: 103
PDF downloaded: 4

Description of the new species Mallomonas okhapkinii (Synurales, Chrysophyceae) based on morphological and molecular data

A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky Prospect 33, 119071 Moscow, Russia
Papanin Institute for Biology of Inland Waters оf the Russian Academy of Sciences, 152742, Borok, 109, Yaroslavl Region, Russia
A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky Prospect 33, 119071 Moscow, Russia
Synurales Mallomonas scale ultrastructure molecular phylogeny SSU rDNA rbcL new species Russia Algae

Abstract

This paper describes a new species of Mallomonas discovered in a swamp area in Russia. The species was identified based on scale morphology, examined using scanning and transmission electron microscopy, and subjected to molecular analysis. The new species, Mallomonas okhapkinii sp. nov., belongs to the section Planae and is most similar in scale and bristle ultrastructure to M. matvienkoae sensu stricto. Phylogenetic analysis, performed using a concatenated dataset of nuclear-encoded small subunit rRNA and plastid-encoded rbcL genes, revealed that the strains of the new species form a distinct clade with high statistical support, closely related to the clade of M. paragrandis and M. sorohexareticulata. This species was found in only one habitat.

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