Patterns of intron gain and conservation in eukaryotic genes

Table 4 Probability of an intron in extant species to be inherited from an ancestral node

intron is present in	Probability	that it is also present in	95% confidence interval
Dicdi	0.71	AME	[0.46 – 0.92]
Caeel	0.19	AME	[0.10 – 0.74]
Strpu	0.31	AME	[0.17 – 0.79]
Cioin	0.22	AME	[0.12 – 0.75]
Danre	0.29	AME	[0.16 – 0.78]
Galga	0.29	AME	[0.16 – 0.78]
Homsa	0.30	AME	[0.17 – 0.78]
Roden	0.30	AME	[0.17 – 0.78]
Drome	0.30	AME	[0.17 – 0.78]
Anoga	0.28	AME	[0.16 – 0.78]
Cryne	0.29	AME	[0.17 – 0.78]
Schpo	0.39	AME	[0.24 – 0.82]
Sacce	0.27	AME	[0.16 – 0.77]
Aspfu	0.27	AME	[0.15 – 0.77]
Neucr	0.21	AME	[0.11 – 0.75]
Arath	0.31	AME	[0.18 – 0.79]
Orysa	0.30	AME	[0.17 – 0.78]
Thepa	0.30	Apicomplexa	[0.10 – 0.77]
Plafa	0.46	Apicomplexa	[0.21 – 0.81]

Confidence intervals are wide due to the large amount of uncertainty associated with the input patterns (each pattern has 18 out of 19 sites with the presence/absence of the intron marked as unknown). Species and lineages abbreviations are as in Table 1.

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