Table 6. Result of the Bayesian coalescent-based estimation of divergence time among different evolutionary clades/subclades and the time to the most recent common ancestor (t _MRCA) of different evolutionary clades/subclades.

	Divergence time estimate (Mya)
Evolutionary clades	Non-partition	Two partitions	Three partitions
Clade 1 vs. Clade 2	0.2539 (0.0903–0.4742)	0.2544 (0.096–0.4648)	0.2566 (0.0942–0.4530)
Clade 3 vs. Clade 1 - Clade 2	0.5515 (0.1965–0.9945)	0.5490 (0.2089–0.9809)	0.5463 (0.2215–0.9607)
Clade 4 vs. Clade 1 - Clade 2 - Clade 3	1.1659 (0.4652–1.9848)	1.1958 (0.4755–2.0324)	1.2180 (0.4971–2.0552)
Clade 5 vs. Clade 1 - Clade 2 - Clade 3 - Clade 4	2.0905 (0.8492–3.4836)	2.1829 (0.8575–3.8453)	2.1952 (0.8733–3.8037)
Subclade 1A vs. Subclade 1B	0.1302 (0.0488–0.2382)	0.1311 (0.0519–0.2341)	0.1312 (0.0523–0.2314)
Subclade 1C vs. Subclade 1A - Subclade 1B	0.1612 (0.0590–0.2956)	0.1628 (0.0653–0.2929)	0.1635 (0.0644–0.2862)
	t MRCA
Clade 1	0.1612 (0.0590–0.2956)	0.1628 (0.0653–0.2929)	0.1635 (0.0644–0.2862)
Clade 2	0.0444 (0.0090–0.1086)	0.0443 (0.0092–0.1085)	0.0447 (0.0107–0.1071)
Clade 3	0.1251 (0.0419–0.2474)	0.1272 (0.0452–0.2450)	0.1283 (0.0455–0.2404)
Clade 4	0.2098 (0.0747–0.3887)	0.2080 (0.0809–0.3881)	0.2093 (0.0778–0.3720)
Clade 5	0.2038 (0.0571–0.4302)	0.2217 (0.0655–0.4540)	0.2211 (0.0652–0.4558)
Subclade 1A	0.0788 (0.0266–0.1490)	0.0800 (0.0282–0.1495)	0.0805 (0.0294–0.1497)
Subclade 1B	0.0681 (0.0181–0.1278)	0.0622 (0.0189–0.1231)	0.0625 (0.0206–0.1231)
Subclade 1C	0.0780 (0.0222–0.1541)	0.0793 (0.0242–0.1528)	0.0799 (0.0257–0.1554)

Results based on non-partition and partitioned by each codon were shown (two partitions: pos1+pos2, pos3; three partitions: pos1, pos2, pos3). Mean values are shown in bold and 95% HPD are shown in brackets.