Fig. 4.

Bayesian divergence time estimates of Eleusine (shaded) based on the six combined plastid gene markers (ndhA intron, ndhF, rps16-trnK, rps16 intron, rps3, and rpl32-trnL) of Chloridoideae. Clade constraint is marked by the black circle. An interrupted line indicates the origin of Eleusine from sub-tribe Eleusininae. Node numbers 1, 2 and 3 indicate the crown age of Eleusine, allotetraploid clade and E. coracana, respectively. Numbers in parentheses indicate 95 % highest posterior density (HPD) intervals.