Claudio Slamovits

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A New Dinoflagellate Genome Illuminates a Conserved Gene Cluster Involved in Sunscreen Biosynthesis

Photosynthetic dinoflagellates of the Family Symbiodiniaceae live symbiotically with many organisms that inhabit coral reefs and are currently classified into fifteen groups, including seven genera. Draft genomes from four genera, Symbiodinium, Breviolum, Fugacium, and Cladocopium, which have been isolated from corals, have been reported. However, no genome is available from the genus Durusdinium, which occupies an intermediate phylogenetic position in the Family Symbiodiniaceae and is well…

The 5S rRNA genes in Alexandrium: their use as a FISH chromosomal marker in studies of the diversity, cell cycle and sexuality of dinoflagellates.

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The 5S rRNA genes in Alexandrium: their use as a FISH chromosomal marker in studies of the diversity, cell cycle and sexuality of dinoflagellates.
Harmful Algae. 2020 Sep;98:101903
Authors: de Busto…

The 5S rRNA genes in Alexandrium: their use as a FISH chromosomal marker in studies of the diversity, cell cycle and sexuality of dinoflagellates

Chromosomal markers of the diversity and evolution of dinoflagellates are scarce because the genomes of these organisms are unique among eukaryotes in terms of their base composition and chromosomal structure. Similarly, a lack of appropriate tools has hindered studies of the chromosomal localization of 5S ribosomal DNA (rDNA) in the nucleosome-less chromosomes of dinoflagellates. In this study, we isolated and cloned 5S rDNA sequences from various toxin-producing species of the genus…

The Molecular Diversity of Phagotrophic Euglenids Examined Using Single-cell Methods.

Related Articles The Molecular Diversity of Phagotrophic Euglenids Examined Using Single-cell Methods. Protist. 2020 Aug 16;171(5):125757 Authors: Lax G, Simpson AGB Abstract Euglenids are a diverse group of euglenozoan flagellates that includes phototrophs, osmotrophs, and phagotrophs. Despite making up most of the phylogenetic diversity of euglenids, phagotrophs remain understudied, and recent work has focused on …

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Cryo-EM structure of the highly atypical cytoplasmic ribosome of Euglena gracilis.

Cryo-EM structure of the highly atypical cytoplasmic ribosome of Euglena gracilis. Nucleic Acids Res. 2020 Oct 22;: Authors: Matzov D, Taoka M, Nobe Y, Yamauchi Y, Halfon Y, Asis N, Zimermann E, Rozenberg H, Bashan A, Bhushan S, Isobe T, Gray MW, Yonath A, Shalev-Benami M Abstract Ribosomal RNA is the central component of the …

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Integrated omics unveil the secondary metabolic landscape of a basal dinoflagellate.

Integrated omics unveil the secondary metabolic landscape of a basal dinoflagellate.
BMC Biol. 2020 Oct 13;18(1):139
Authors: Beedessee G, Kubota T, Arimoto A, Nishitsuji K, Waller RF, Hisata K, Yamasaki S, Satoh N…

Single cell transcriptomics of ABEDINIUM reveals a new early-branching dinoflagellate lineage.

Single cell transcriptomics of ABEDINIUM reveals a new early-branching dinoflagellate lineage.
Genome Biol Evol. 2020 Oct 12;:
Authors: Cooney EC, Okamoto N, Cho A, Hehenberger E, Richards TA, Santoro AE, Worden AZ…

Integrated omics unveil the secondary metabolic landscape of a basal dinoflagellate

CONCLUSIONS: Our genomic findings suggest intricate integration of various metabolic enzymes that function iteratively to synthesize metabolites, providing mechanistic insights into how dinoflagellates synthesize secondary metabolites, depending upon nutrient availability. This study provides insights into toxin production associated with dinoflagellate blooms. The genome of this basal dinoflagellate provides important clues about dinoflagellate evolution and overcomes the large genome size,…

Single-Cell Transcriptomics of Abedinium Reveals a New Early-Branching Dinoflagellate Lineage

Dinoflagellates possess many cellular characteristics with unresolved evolutionary histories. These include nuclei with greatly expanded genomes and chromatin packaged using histone-like proteins and dinoflagellate-viral nucleoproteins instead of histones, highly reduced mitochondrial genomes with extensive RNA editing, a mix of photosynthetic and cryptic secondary plastids, and tertiary plastids. Resolving the evolutionary origin of these traits requires understanding their ancestral states and…

Cryptomonads.

Cryptomonads. Curr Biol. 2020 Oct 05;30(19):R1114-R1116 Authors: Archibald JM Abstract John Archibald introduces cryptomonads, an important group of protists. PMID: 33022250 [PubMed – as supplied by publisher]