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Table 5 Time to most recent common ancestor (TMRCA) for newly discovered SIVs and other related SIV lineages 1

From: Discovery and full genome characterization of two highly divergent simian immunodeficiency viruses infecting black-and-white colobus monkeys (Colobus guereza) in Kibale National Park, Uganda

Clade

TMRCA2

95% HPD

SIV root

40,330

23,804 – 63,190

SIVdrl(mainland)/SIVdrl(Bioko)

9,607

7,671 – 11,606

SIVbcm/SIVcol/SIVkcol

20,560

10,191 – 34,569

SIVcol, SIVkcol-1, SIVkcol-2

10,461

4,961 – 18,062

SIVolc/SIVwrc

7,904

3,560 – 13,684

  1. 1The separation of mainland drills from those SIVs on Bioko Island, Equatorial Guinea of about 10,000 years before present (ybp) was used as a calibration point for the molecular dating of SIVs with Bayesian inference in the program BEAST.
  2. 2TMRCAs are in ybp.