The complete mitochondrial genome of the moss Oxystegus tenuirostris (Hook. & Taylor) A.J.E. Sm. (Pottiaceae, Bryophyta)

Abstract

The mitochondrial genome of mosses is characterized by a highly conserved structure and genic content. This is confirmed here through the assembly and annotation of the mt genome of the moss Oxystegus tenuirostris, family Pottiaceae, for which it is assembled. A phylogenetic tree is inferred from the whole genome of 16 species of mosses to validate the sequence of O. tenuirostris by confirming its shared ancestry with Syntrichia. The genome is 105 001 bp long, with a GC content of 39.2%, comprising 40 protein coding, 24 tRNA, and 3 rRNA genes. All introns reported from the mt genome of all but one peristomate moss are present, whereas no region of 50 bp or more is repeated within the genome. The genic content and order is identical to that of most mosses, highlighting that the mt genome is static not only across the phylogenetic depth but also breadth of the moss tree of life.

• Bryophytes
• complete mitogenome
• Pottiales

Acknowledgements

The authors thank Dr. Karolina Fučíková (UConn) for providing helpful comments on the assemblies’ methods, and Dr. Yang Liu (UConn) for his advice and assistance during the development of this study.

Declaration on interest

The authors report that they have no conflicts of interest. The authors alone are responsible for the content and writing the paper. Financial support was received to M. Alonso from the Spanish “Ministerio de Economía y Competitividad” (EEBB-I-15-09632) for a 3-month visit at UConn. Financial support for the sequencing and laboratory analysis was provided by the Spanish “Ministerio de Ciencia e Innovación” (Project CGL2010-15959/BOS co-financed by FEDER) and by US National Science Foundation (DEB-1146295 to BG).