TABLE 2

Maximum-likelihood rate estimates with corresponding 95% bootstrap intervals (numbers in parentheses) of birth, decay, and preservation in duplicate and chimeric genes

Birth λDecay μPreservation νPreservation probability
Duplicates
    Per 1.0 t3470 (2300–4800)47.4 (30.4–67.1)2.03 (1.42–2.86)4.1% (2.8–6.4%)
    Per 106 yr76.4 (50.9–105.9)1.04 (0.67–1.48)0.045 (0.031–0.063)
Chimeras
    Per 1.0 t518 (146–1090)76.5 (22.5–157.5)1.10 (0.29–3.84)1.4% (0.4–6.0%)
    Per 106 yr11.4 (3.22–23.97)1.68 (0.50–3.47)0.024 (0.006–0.085)
P (dup > chim)a1.0000.1120.84370.9322
  • a One-sided P-value determined from proportion of 10,000 bootstrap replicates that show greater estimates for duplicates than for chimeras.