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. 2019 Dec 17;20(Suppl 20):635. doi: 10.1186/s12859-019-3202-x

Table 5.

Formulae for the expected numbers of triplets after three events

Model M
Triplet ΔT (2,2,2) (3,2,2) (2,3,2)
{t1,t1,t1} - u(1+v)3(1+w)3 -
{t1,t1,t2} 2uv(1+v)(1+w)3 2(3u+u)v(1+v)(1+w)3 2u(3v+v)
×(1+2v+v)(1+w)3
{t1,t2,t2} - - -
{t2,t2,t2} - - (1+u)v(1+w)3
{t2;t2;t3} 2(1+u)vw(1+w) 2(1+2u+u)vw(1+w) 2(1+u)(3v+v)w(1+w)
{t2,t3,t3} - - -
{t3,t3,t3} - - -
{t1,t1,t3} 2u(1+v)2w(1+w) 2(3u+u)(1+v)2w(1+w) 2u(1+2v+v)2w(1+w)
{t1,t3,t3} - - -
{t1,t2,t3} - - -
model M
triplet ΔT (2,2,3) (2,3,3) (3,2,3)
{t1,t1,t1} - - u(1+v)3
×(1+2w+w)3
{t1,t1,t2} 2uv(1+v) 2u(3v+v)(1+2v+v) 2(3u+u)v(1+v)
×(1+2w+w)3 ×(1+2w+w)3 ×(1+2w+w)3
{t1,t2,t2} - - -
{t2,t2,t2} - (1+u)v -
×(1+2w+w)3
{t2;t2;t3} 2(1+u)v 2(1+u)(3v+v) 2(1+2u+u)v
×(3w+w)(1+2w+w) ×(3w+w)(1+2w+w) ×(3w+w)(1+2w+w)
{t2,t3,t3} - - -
{t3,t3,t3} (1+u)(1+v)w (1+u)(1+2v+v)w (1+2u+u)(1+v)w
{t1,t1,t3} 2u(1+v)2 2u(1+2v+v)2 2(3u+u)(1+v)2
×(3w+w)(1+2w+w) ×(3w+w)(1+2w+w) ×(3w+w)(1+2w+w)
{t1,t3,t3} - - -
{t1,t2,t3} - - -
model M
triplet ΔT (3,3,2) (3,3,3)
{t1,t1,t1} u(1+2v+v)3(1+w)3 u(1+2v+v)3(1+2w+w)3
{t1,t1,t2} 2(3u+u)(3v+v)(1+2v+v)(1+w)3 2(3u+u)(3v+v)(1+2v+v)(1+2w+w)3
{t1,t2,t2} - -
{t2,t2,t2} (1+2u+u)v(1+w)3 (1+2u+u)v(1+2w+w)3
{t2;t2;t3} 2(1+2u+u)(3v+v)w(1+w) 2(1+2u+u)(3v+v)(3w+w)(1+2w+w)
{t2,t3,t3} - -
{t3,t3,t3} - (1+2u+u)(1+2v+v)w
{t1,t1,t3} 2(3u+u)(1+2v+v)2w(1+w) 2(3u+u)(1+2v+v)2(3w+w)(1+2w+w)
{t1,t3,t3} - -
{t1,t2,t3} - -

u= probability that two progeny survive after the first polyploidization event. u= probability that three survive. Similarly v and v are the probabilities that two or three progeny survive, respectively, after the second event. w and w are the probabilities that two or three progeny survive after the third event