Mitochondrial phylogenomics of the Bivalvia (Mollusca): searching for the origin and mitogenomic correlates of doubly uniparental inheritance of mtDNA

Table 4 Intra- and interspecies comparisons for 12 mitochondrial protein-coding genes: average pairwise sequence divergence

Pairs	P	K2P	JC	TrN	Na	P(aa)	D	K_a	K_s	K_a/K_s
F × F
VenF × PygF	0.248	0.306	0.301	0.311	434	0.192	0.214	0.137	1.400	0.098
VenF × InvF	0.249	0.307	0.302	0.312	431	0.191	0.212	0.137	1.358	0.101
VenF × QuaF	0.207	0.246	0.242	0.251	353	0.157	0.170	0.101	1.010	0.100
PygF × InvF	0.274	0.346	0.340	0.353	488	0.216	0.244	0.157	1.785	0.088
PygF × QuaF	0.252	0.312	0.317	0.318	466	0.207	0.231	0.147	1.350	0.109
InvF × QuaF	0.247	0.303	0.308	0.308	466	0.207	0.231	0.144	1.213	0.119
M × M
VenM × PygM	0.370	0.514	0.510	0.529	950	0.421	0.496	0.353	1.548	0.228
VenM × InvM	0.340	0.459	0.454	0.468	865	0.384	0.484	0.300	1.352	0.222
VenM × QuaM	0.303	0.393	0.389	0.402	796	0.353	0.435	0.272	0.946	0.288
PygM × InvM	0.372	0.522	0.514	0.533	882	0.391	0.496	0.327	2.093	0.156
PygM × QuaM	0.374	0.522	0.518	0.536	933	0.414	0.534	0.360	1.523	0.236
InvM × QuaM	0.340	0.458	0.454	0.465	836	0.371	0.463	0.307	1.241	0.247
F × M
VenF × VenM	0.407	0.586	0.586	0.603	1135	0.503	0.700	0.474	1.112	0.426
PygF × PygM	0.428	0.636	0.634	0.657	1142	0.506	0.706	0.494	1.428	0.346
InvF × InvM	0.430	0.641	0.638	0.653	1139	0.505	0.703	0.482	1.523	0.316
QuaF × QuaM	0.419	0.625	0.614	0.632	1164	0.516	0.726	0.500	1.142	0.438

NOTE. --P, uncorrected nucleotide divergence; K2P, nucleotide divergence with Kimura's -parametertwo model; JC, nucleotide divergence with Jukes and Cantor model; TrN, nucleotide divergence with Tamura-Nei model; Na, total number of amino acid differences; P(aa), uncorrected amino acid p-distances; D, Poisson-corrected amino acid distances, and estimates of K_a (the number of nonsynonymous substitutions per nonsynonymous site) and K_s(t he number of synonymous substitutions per synonymous site) using the Jukes and Cantor (1969) correction. VenF: Venustaconcha ellipsiformis F genome; PygF: Pyganodon grandis F genome; InvF: Inversidens japanensis F genome; QuaF: Quadrula quadrula F genome; VenM: V. ellipsiformis M genome; PygM: P. grandis M genome; InvM: I. japanensis M genome; QuaM: Q. quadrula M genome.

ISSN: 2730-7182