Diversification of myco-heterotrophic angiosperms: Evidence from Burmanniaceae

Table 1 Age estimation of monocot orders.

Order		Penalized Likelihood age estimations (in Mya)	Credibility intervals	Janssen and Bremer (2004) age estimations (in Mya)¹
Acorales	stem node	134²	134²
	crown node	19 ± 5.7	7 – 44
Alismatales	stem node	128 ± 1.7	123 – 133	131
	crown node	123 ± 3.9	97 – 133	128
Petrosaviales	stem node	128 ± 1.9	121 – 132	126
	crown node	108 ± 7.11	87 – 102	123
Dioscoreales	stem node	121 ± 2.1	119 – 130	124
	crown node	116 ± 2.6	113 – 126	123
Pandanales	stem node	121 ± 2.1	119 – 130	124
	crown node	117 ± 2.4	116 – 130	114
Liliales	stem node	122 ± 2.6	109 – 131	124
	crown node	118 ± 6.03	78 – 131	117
Asparagales	stem node	122 ± 4.7	98 – 126	122
	crown node	119 ± 4.1⁴	101 – 127	119
Arecales	stem node	116 ± 5.1⁵	94 – 122³	120
	crown node	51 ± 14.6⁶	15 – 98	110
Commelinales	stem node	92 ± 6.8	83 – 114	114
	crown node	75 ± 8.8	50 – 104	110
Zingiberales	stem node	92 ± 5.5	91 – 116	114
	crown node	67 ± 7.1	52 – 96	88
Poales	stem node	109 ± 5.2	89 – 120	117
	crown node	106 ± 5.3	88 – 116	113

Age estimations of monocot orders obtained with PL analysis of 18S rDNA data, including credibility intervals. The age estimations by Janssen and Bremer [13] are listed for comparison.
¹ The analysis of Janssen and Bremer [13] is based on 878 rbcL sequences. Dating was obtained with nonparametric rate smoothing (NPRS).
² This node was fixed at 134 Mya.
³ Only one Acorus accession was used in the analysis of Janssen and Bremer [13].
⁴ This node was constrained to a minimum age of 93 Mya.
⁵ This node was constrained to a minimum age of 89.5 Mya.
⁶ Only two Arecales accessions were included in the analysis.

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