The relative ages of ectomycorrhizal mushrooms and their plant hosts estimated using Bayesian relaxed molecular clock analyses

Table 2 Divergence dates of angiosperm clades containing ectomycorrhizae-forming species (or species that form associations with ectomycorrhizae fungi, for example, Orchidaceae), based on Wang and Qiu [34] and Wikström et al [35]

Classification	ECM-containing group	Node	Age
Monocots	Orchidaceae	495	53–69
	Cyperaceae	434	28–39
	Poaceae	437	35–44
Basal Eudicots	Ranunculaceae	410	65–85
Caryophyllids	Polygonaceae	367	37–52
	Caryophyllaceae	382	28–40
	Nyctaginaceae	376	21–28
Asterids	Rubiaceae	304	61–64
	Oleaceae	260	55–64
	Aquifoliaceae	252	63–72
	Apiaceae	229	41–45
	Campanulaceae (+Lobeliaceae)	233 248^a	82–90 46–59
	Goodeniaceae/Asteraceae	238 239^b	65–69 44–50
	Caprifoliaceae	221 219^c	29–36 54–58
Core Eudicots inc. sed.	Grossulariaceae	199	73–81
Rosids inc. sed.	Myrtaceae/Melastomataceae	121	78–88
Rosids 1	Euphorbiaceae	63	69–71
	Salicaceae	29	60–63
	Cunoniaceae	67	64–66
	Polygalaceae	85	66–68
	Fabaceae	83^d	56–68
	Rosaceae	117^e	46–47
	Rhamnaceae	105	62–64
	Ulmaceae	110	55–57
	Fagaceae + Juglandaceae + Betulaceae + Casuarinaceae	89^f	60–61
Rosids 2	Dipterocarpaceae/Cistaceae	149	51–58
	Malvaceae	154	54–58
	Sapindaceae	139	20–26

'Node' refers to node numbering in Wikström et al [35]. Nodes are the most recent common ancestor of the ectomycorrhizae (ECM)-containing family and its closest non-ECM-forming relative, unless otherwise indicated. Two nodes are indicated when relevant taxa sampled by Wikström et al [35] are not in Wang and Qiu [34], or when topologies conflict. Ages in millions of years are ranges of ACCTRAN and DELTRAN optimizations from Wikström et al [35].
^aMRCA (most recent common ancestor) of (Campanulaceae, Lobeliaceae)
^bMRCA of (Asteraceae(Goodeniaceae, Calyceraceae))
^cMRCA of (Valerianaceae(Linnaeaceae(Caprifoliaceae, Dispacaceae)))
^dMRCA of Fabaceae
^eMRCA of Rosaceae
^fMRCA of Fagales

ISSN: 1741-7007