English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The homoscleromorph sponge  Oscarella carmela , first described from central California, USA is shown to represent two superficially similar but both morphologically and phylogenetically distinct species that are co-distributed. We here describe a new species as  Oscarella pearsei , sp. nov. and re-describe  Oscarella carmela ; the original description was based upon material from both species. Further, we correct the identification of published genomic/transcriptomic resources that were originally attributed to  O .  carmela , and present new Illumina-sequenced transcriptome assemblies for each of these species, and the mitochondrial genome sequence for  O .  pearsei  sp. nov. Using SSU and LSU ribosomal DNA and the mitochondrial genome, we report the phylogenetic relationships of these species relative to other  Oscarella  species, and find strong support for the placement of  O .  pearsei  sp. nov. in a distinct clade within genus  Oscarella  defined by the presence of spherulous cells that contain paracrystalline inclusions;  O .  carmela  lacks this cell type.  Oscarella pearsei  sp. nov and  O .  carmela  can be tentatively distinguished based upon gross morphological differences such as color, surface texture and extent of mucus production, but can be more reliably identified using mitochondrial and nuclear barcode sequencing, ultrastructural characteristics of cells in the mesohyl, and the morphology of the follicle epithelium which surrounds the developing embryo in reproductively active individuals.

Transcriptome sequencing and delimitation of sympatric Oscarella species (O. carmela and O. pearsei sp. nov) from California, USA