Micrograph of Chaetoceros tenuissimus. Image credit: Ann-Turi Skjevik from nordicmicroalgae.org under Creative Commons license CC BY-ND 3.0.

The Chaetoceros tenuissimus NIES-3715 genome sequence and gene models were not determined by the Joint Genome Institute (JGI), but were downloaded from NCBI on March 6, 2023. In order to ensure this genome is comparable to those sequenced by the JGI, we applied filters to remove if present: 1) transposable elements, 2) pseudogenes, 3) alternative transcripts and overlapping models, 4) alleles on secondary scaffolds and 5) unsupported short models. This resulted in the removal of 1,449 models and the generation of the FilteredModels1 (GeneCatalog) gene track. All published models are available in the ExternalModels track. Please note that this copy of the genome is not maintained by NCBI and is therefore not automatically updated. In order to allow comparative analyses with other algal genomes sequenced by the JGI, a copy of this genome is incorporated into PhycoCosm. The JGI Annotation Pipeline was used to add functional annotation to this genome.

The following text is from NCBI BioProject PRJDB8865:

Chaetoceros tenuissimus

Chaetoceros tenuissimus Meunier has small (~5 µm) cells that are rectangular in the girdle view. The growth is high, at least five divisions per day under the following conditions: water temperature of 25ºC, salinity 30, and high light intensity (800 µmol of photons m^-2 s^-1). This diatom is considered to be an important phytoplankton species for marine primary productions owing to its higher growth rate. Chaetoceros tenuissimus is also known to be the diatom host of its infectious viruses, single-stranded RNA virus CtenRNAV and single-stranded DNA virus CtenDNAV. It is suggested that C. tenuissimus remains highly productive even when surrounded by its infectious viruses. The goal of this project is to reveal the genomic characters of the ecologically important diatom species and to understand the diatom and virus systems in nature.