Work

Complete chloroplast genomes of two closely related diatoms, Nitzschia nienhuisii and Epithemia catenata

Year: 2025

Type: article

Abstract: We report the complete chloroplast genomes of two closely related taxa, Nitzschia nienhuisii and Epithemia catenata. The plastids share 96.85% nucleotide similarity and exhibit similar genomic structure. The N. nienhuisii plastome is 128,415 bp with 129 protein-coding genes, whereas E. catenata plastome is 140,525 bp with 130 protein-coding genes, including a duplicated psaJ in the inverted repeat. Both genomes encode 30 tRNAs, one tmRNA, six rRNAs, and two pseudogenes (tyrC and ycf42). The larger E. catenata genome likely reflects 12 unique ORFs. Maximum likelihood phylogenetic analysis supports a close relationship between these taxa.

Source: Mitochondrial DNA Part B

DOI: 10.1080/23802359.2025.2594288

Authors: Mailor Amaral, Aimee Caye G. Chang, Kyle G. Keepers, Matt P. Ashworth, Thomas A. Frankovich, Sarah E. Hamsher, Scott R. Miller, Jingchun Li, Patrick Kociolek

Institutions: Florida International University, Grand Valley State University, University of Montana

Language: English

Topic: Protist diversity and phylogeny

Subfield: Molecular Biology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: diamond

Funders: National Science Foundation, Florida International University

Award: Collaborative Research: PurSUiT: Phylogenomics and taxonomic revision of Rhopalodiales - diatoms with obligate cyanobacterial endosymbionts

OpenAlex ID: W7106841907

FWCI:

Cites: 23

Cited by:

Related to: