Information about the data sets used for the analyses.

The numbers of conserved (C), variable (V) and parsimony informative (P) characters are shown; Pi – proportion of invariable sites; α – rate heterogeneity approximated by a gamma distribution.本文给出了保守位点（conserved，缩写为C）、可变位点（variable，缩写为V）以及简约信息位点（parsimony informative，缩写为P）的数量；其中Pi代表不变位点比例，α为通过伽马分布近似的速率异质性参数。