Analysis of Codon Usage Bias of 30 Chloroplast Genomes in <i>Ulva</i> (Ulvophyceae, Chlorophyta).

ABSTRACT:

Background

Ulva is a globally distributed genus with ecological and economic significance, yet the codon usage bias of the Ulva chloroplast genome remains poorly understood.

Methods

We assessed the Ulva chloroplast genome codon usage patterns and their drivers by analyzing 30 genomes across 16 Ulva species.

Results

The nucleotide composition analysis demonstrated that Ulva chloroplast genomes are rich in A/T, and prefer to use codons that ended with A/T. The relative synonymous codon usage analysis suggested that related species have similar codon usage patterns. A total of 25 high-frequency codons and 7-14 optimal codons were identified in these chloroplast genomes. The ENC values ranged from 31.40 to 32.76, all of which are less th

SUBMITTER: Fang J 

PROVIDER: S-EPMC12111487 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature