New insights into the phylogeny of Stephanodiscaceae based on plastome

Yandan XIANG; Xudong LIU; Fangru NAN; Yang LIU; Shulian XIE; Xinjie JIN; John Patrick KOCIOLEK; Qi LIU

doi:10.1007/s00343-025-4286-y

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New insights into the phylogeny of Stephanodiscaceae based on plastome

Biology | Updated：2026-03-26

- New insights into the phylogeny of Stephanodiscaceae based on plastome
- Journal of Oceanology and Limnology Vol. 44, Issue 1, Pages: 284-306(2026)
- Affiliations：
  
  1.School of Life Science, Shanxi University, Taiyuan 030006, China
  2.Shanxi Key Laboratory for Research and Development of Regional Plants, Shanxi University, Taiyuan 030006, China
  3.College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, China
  4.Museum of Natural History, University of Colorado, Boulder CO80309, USA
  5.Department of Ecology and Evolutionary Biology, University of Colorado, Boulder CO80309, USA
- Author bio：
  
  liuqi317@126.com
- Funds：
- DOI：10.1007/s00343-025-4286-y
  CLC：
- Received：29 October 2024，
  
  Accepted：31 December 2024，
  
  Online First：05 March 2025，
  
  Published：01 January 2026
- Accepted：
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XIANG Yandan,LIU Xudong,NAN Fangru,et al.New insights into the phylogeny of Stephanodiscaceae based on plastome[J].Journal of Oceanology and Limnology,2026,44(01):284-306.
DOI：

XIANG Yandan,LIU Xudong,NAN Fangru,et al.New insights into the phylogeny of Stephanodiscaceae based on plastome[J].Journal of Oceanology and Limnology,2026,44(01):284-306. DOI： 10.1007/s00343-025-4286-y.

摘要

Abstract

Stephanodiscaceae is one of the most diverse family of the freshwater centric diatoms. However

the scarcity of whole plastome data poses a significant challenge to the undertaking of genomic studies on this taxonomic group. We collected data on the plastid genomes from 33 members of the Stephanodiscaceae and its close relatives

including 12 newly-sequenced genomes and 21 deposited in National Center for Biotechnology Information (NCBI). Phylogenetic trees are yielded five major clades based on homologous genes. The features of the plastid genomes

including repeat sequences

codon usage

and selection pressure for each clade

are analyzed. The paper makes a contribution to the field of diatom genomics by describing the structural characteristics of the plastid genomes in the Stephanodiscaceae and its closely related species

complemented by related analyses. It provides crucial data that will serve as indispensable references for future research.

关键词

Keywords

references

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