Bayesian estimation of joint transitions between gallinaceous and non-gallinaceous hosts and full-length-NA and SΔNA.

a: Analysis was performed separately for major clades when the trees were too large.
b: Difference of all rates that lead to the character combinations Galliformes/SΔNA and non-Galliformes/full-length-NA minus all rates that lead the character combinations non-Galliformes/SΔNA and Galliformes/full-length-NA. (refer to Methods).
c: highly pathogenic.