Complete chloroplast genome of the tiny marine diatom Nanofrustulum shiloi (Bacillariophyta) from the Adriatic Sea

Chunlian Li; Romain Gastineau; Monique Turmel; Andrzej Witkowski; Christian Otis; Ana Car; Claude Lemieux

doi:10.1080/23802359.2019.1673245

Complete chloroplast genome of the tiny marine diatom Nanofrustulum shiloi (Bacillariophyta) from the Adriatic Sea

Mitochondrial DNA B Resour. 2019 Oct 4;4(2):3374-3376. doi: 10.1080/23802359.2019.1673245.

Authors

Chunlian Li^{1

2}, Romain Gastineau², Monique Turmel³, Andrzej Witkowski², Christian Otis³, Ana Car⁴, Claude Lemieux³

Affiliations

¹ Ecological Institute, South China Normal University, Guangzhou, Guangdong, China.
² Institute of Marine and Environmental Sciences, University of Szczecin, Szczecin, Poland.
³ Département de biochimie, de microbiologie et de bio-informatique, Institut de Biologie Intégrative et des Systèmes, Université Laval, Québec, Canada.
⁴ Institute for Marine and Coastal Research, University of Dubrovnik, Dubrovnik, Croatia.

Abstract

We report the chloroplast genome sequence of Nanofrustulum shiloi, a tiny araphid pennate diatom collected from the Adriatic Sea. The 160,994-bp N. shiloi genome displays a quadripartite structure and its gene repertoire resembles those of other diatom chloroplast genomes. Besides the genes located in the inverted repeat, psbY is duplicated. A gene-poor region in the large single-copy region contains multiple ORFs sharing sequence similarities with plasmids and chloroplast ORFs found in other diatom species. The genome features a single intron, a group II intron in petB. Phylogenomic analysis identified N. shiloi at a basal position within the araphid 2 clade.

Keywords: Plastid genome; Staurosiraceae; group II intron; pennate araphid diatoms; phylogenomics.