Exceptional Enlargement of the Mitochondrial Genome Results from Distinct Causes in Different Rain Frogs (Anura: Brevicipitidae: Breviceps)

Table 1

Comparisons of the relative rates of nucleotide substitutions among afrobatrachian-related lineages. The lineages with faster substitution rates are shown in bold.

Compared genes	Compared lineages		Relative substitution rates		Probability	Significance
	Lineage 1	Lineage 2	Lineage 1	Lineage 2
Microhylids vs. Afrobatrachians
All 37 mt genes	Microhylids	Afrobatrachians	0.340	0.380
All 13 protein genes	Microhylids	Afrobatrachians	0.391	0.428
All rRNA genes	Microhylids	Afrobatrachians	0.165	0.204
All tRNA genes	Microhylids	Afrobatrachians	0.225	0.286
Laurentobatrachia (Arthroleptidae+Hyperoliidae) vs. Xenosyneunitanura (Hemisotidae+Brevicipitidae)
All 37 mt genes	Laurentobatrachians	Xenosyneunitanurans	0.343	0.361
All 13 protein genes	Laurentobatrachians	Xenosyneunitanurans	0.389	0.408
All rRNA genes	Laurentobatrachians	Xenosyneunitanurans	0.178	0.192	0.098
All tRNA genes	Laurentobatrachians	Xenosyneunitanurans	0.248	0.267	0.114
Hemisus vs. Breviceps (Hemisotidae vs. Brevicipitidae)
All 37 mt genes	Hemisus	Breviceps	0.369	0.358	0.058
All 13 protein genes	Hemisus	Breviceps	0.413	0.404	0.207
All rRNA genes	Hemisus	Breviceps	0.203	0.184	0.083
All tRNA genes	Hemisus	Breviceps	0.279	0.266	0.470
Breviceps mossambicus vs. B. adspersus
All 37 mt genes	B. mossambicus	B. adspersus	0.351	0.351	0.993
All 13 protein genes	B. mossambicus	B. adspersus	0.393	0.394	0.906
All rRNA genes	B. mossambicus	B. adspersus	0.185	0.190	0.514
All tRNA genes	B. mossambicus	B. adspersus	0.279	0.266	0.237
Breviceps mossambicus vs. B. poweri
All 37 mt genes	B. mossambicus	B. poweri	0.351	0.375
All 13 protein genes	B. mossambicus	B. poweri	0.393	0.423
All rRNA genes	B. mossambicus	B. poweri	0.185	0.193	0.311
All tRNA genes	B. mossambicus	B. poweri	0.279	0.287	0.551
Breviceps adspersus vs. B. poweri
All 37 mt genes	B. adspersus	B. poweri	0.351	0.375
All 13 protein genes	B. adspersus	B. poweri	0.394	0.423
All rRNA genes	B. adspersus	B. poweri	0.190	0.193	0.695
All tRNA genes	B. adspersus	B. poweri	0.266	0.287	0.087

<0.001.