Mitochondrial DNA A DNA Mapp Seq Anal. 2026 May 29:1-7. doi: 10.1080/24701394.2026.2677588. Online ahead of print.

ABSTRACT

Vischeria sp. WL1, an oleaginous microalga isolated from biocrusts, is a promising candidate for biofuel production due to its high lipid accumulation and tolerance to moderate salt stress. In this study, we sequenced and assembled the complete plastid genome of Vischeria sp. WL1. The circular genome is 126,330 bp in length with a GC content of 32.5%, and contains 142 protein-coding genes, 29 transfer RNA (tRNA) genes, and six ribosomal RNA (rRNA) genes. Comparative plastid genome analysis identified a conserved six-gene operon shared by all five Vischeria strains and uncovered specific molecular markers for distinguishing eustigmatophyte species. Phylogenetic analysis based on 64 genes from Ochrophyta species confirmed the placement of Vischeria sp. WL1 within the Vischeria clade. Our work on the plastid genomes of Vischeria strains provides a foundational resource for understanding genetic diversity and conservation in the Eustigmatophyceae.

PMID:42212527 | DOI:10.1080/24701394.2026.2677588