Campus Units

Ecology, Evolution and Organismal Biology

Document Type

Article

Publication Version

Published Version

Publication Date

2020

Journal or Book Title

Mitochondrial DNA Part B

Volume

5

Issue

3

First Page

2500

Last Page

2506

DOI

10.1080/23802359.2020.1780969

Abstract

Gossypium hirsutum and G. barbadense mitochondrial genomes were analyzed to understand the factors shaping codon usage. While most analyses of codon usage suggest minimal to no bias, nucleotide composition, specifically GC content, was significantly correlated with codon usage. In general, both mitochondrial genomes favor codons that end in A or U, with a secondary preference for pyrimidine rich codons. These observations are similar to previous reports of codon usage in cotton nuclear genomes, possibly suggestive of a general bias spanning genomic compartment. Although evidence for codon usage bias is weak for most genes, we identified six genes (i.e. atp8, atp9, sdh3, sdh4, mttB and rpl2) with significant nonrandom codon usage. In general, we find multiple factors that influence cotton mitochondrial genome codon usage, which may include selection in a subset of genes.

Comments

This article is published as Chen, Zhiwen, Jianguo Zhao, Jun Qiao, Weijia Li, Jingwei Li, Ran Xu, Haiyan Wang et al. "Comparative analysis of codon usage between Gossypium hirsutum and G. barbadense mitochondrial genomes." Mitochondrial DNA Part B 5, no. 3 (2020): 2500-2506. doi: 10.1080/23802359.2020.1780969.

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Copyright Owner

The Authors

Language

en

File Format

application/pdf

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