The complete chloroplast genome of an edaphic oleaginous microalga Vischeria stellata SAG 33.83 (Eustigmatophyceae)

Abstract

Vischeria stellata SAG 33.83 is an edaphic oleaginous microalga which is able to accumulate massive storage triacylglycerols (TAG) with nutritionally valuable palmitoleic acid (PA) and membrane lipids with substantial amounts of eicosapentaenoic acid (EPA). The features of the fatty acids metabolism make such alga highly attractive for biotechnological applications. This study first determined and assembled the complete chloroplast genome of V. stellata SAG 33.83 by Illumina sequencing data. It was found that the circular genome made up of 126,824 bp with 32.6% GC content, including 142 protein-coding genes (PCGs), 29 transfer RNA genes (tRNAs), 6 ribosomal RNA genes (rRNAs), and 1 transfer-messenger RNA (tmRNA). The chloroplastic genome composition and structure of V. stellata SAG 33.83 were almost identical to other species of Eustigmatophyceae. Nucleotide of stramenopile species was aligned with 28,824 bp including 54 genes in series as phylogenetic analysis, which demonstrated a close relationship between V. stellata SAG 33.83 and Vischeria sp. CAUP Q 202.