The chromosomal genome sequence of the photosymbiotic ascidian, <i>Trididemnum clinides</i> Kott, 1977 and its associated microbial metagenome sequences

We present a genome assembly from a specimen of <i>Trididemnum clinides</i> (photosymbiotic ascidian; Chordata; Ascidiacea; Aplousobranchia; Didemnidae). The <i>T. clinides</i> genome sequence has a total length of 906.92 megabases. Most of the assembly (97.83%) is scaffolded into 23 chromosomal pseudomolecules. The mitochondrial genome has also been assembled and is 14.98 kilobases in length. The host ascidian has multiple symbionts, including <i>Prochloron</i>, a cyanobacterial genus that can also synthesise bioactive natural products of interest for potential therapeutic development. Biosynthesis of active compounds sometimes involves microbial associates.