Journal
HEREDITY
Volume 94, Issue 1, Pages 87-93Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.hdy.6800547
Keywords
Arabidopsis; bryophyte; evolution; gene expression; selection; translation
Categories
Ask authors/readers for more resources
Patterns of codon usage bias were studied in the moss model species Physcomitrella patens. A total of 92 nuclear, protein coding genes were employed, and estimated levels of gene expression were tested for association with two measures of codon usage bias and other variables hypothesized to be associated with gene expression. Codon bias was found to be positively associated both with estimated levels of gene expression and GC content in the coding parts of studied genes. However, GC content in noncoding parts, that is, introns and 5' and 3' untranslated regions ( UTRs), was not associated with estimated levels of gene expression. It is argued that codon bias is not shaped by mutational bias, but rather by weak natural selection for translational efficiency in P. patens. The possible role of life history characteristics in shaping patterns of codon usage in this species is discussed.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available