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Trebouxiophyceae is a widespread and species-rich green algal class encompassing mostly coccoid algae with a simple ovoid or ellipsoidal outline. However, some poorly-sampled lineages have evolved more elaborate shapes or even complex thalli, adding to the class’s morphological diversity. Led by new and previously established strains, this study additionally uncovered a clade of croissant-like trebouxiophytes. Phylogenetic analyses inferred from nuclear 18S rDNA and chloroplast rbcL sequences confirmed the monophyly of the ‘microcroissant’ clade, which we propose to be classified as a new family, Ragelichloridaceae. This family includes two novel genera, Ragelichloris and Navichloris , and the previously described Thorsmoerkia . The position of Ragelichloridaceae within Trebouxiophyceae stayed unresolved but chloroplast phylogenomics showed that the family belongs to the broader incertae sedis group, which also includes Xylochloris and Leptosira . In addition, our study showed that the microcroissant-like genus Chlorolobion , previously classified within Chlorophyceae, is a genuine trebouxiophyte, potentially related to Ragelichloridaceae.
A new family-level clade uncovered within Trebouxiophyceae.
Two new genera described.
The genus Chlorolobion shown to be a trebouxiophyte.
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Will the newly isolated strains be deposited in any collection centers? These are very cool cells!!!
Chlorolobion obtusum Korshikov.
Figure 14 & Fig 15 are swapped
It would be nice to have the scale bars on all of the images, especially since there are multiple strains & species
The scale bars aren't defined for many of your figures. The first definition comes in Figure 5, despite the earlier figures having scale bars. Very beautiful images though!