All positions with less than 95% site coverage were eliminated. The analysis involved 446 nucleotide sequences. The tree is drawn to scale, with branch lengths measured in the relative number of substitutions per site. A discrete Gamma distribution was used to model evolutionary rate differences among sites (4 categories, +G, parameter = 38.07). The estimated log likelihood value of the topology shown is −247671.60. Bars around each node represent 95% confidence intervals which were computed using the method described in Tamura et al. Relative times were optimized and converted to absolute divergence times (shown next to branching points) based on user-supplied calibration constraints. Divergence times for all branching points in the user-supplied topology were calculated using the Maximum Likelihood method based on the General Time Reversible model. Caption: The timetree shown was generated using the RelTime method. On pressing the “Caption” in the Tree Explorer menu bar, MEGA produces the following text to inform the user about the methods, choices, and data used. Users can display internal node identifiers in the Tree Explorer as well as internal node names, which can be provided in the input topology file. ( C) A timetable exported using the displayed timetree, which shows the ancestor–descendant relationship along with relative node times, relative branch rates, absolute divergence times, and confidence intervals. When focused on a tree node (left side), it shows the internal node identifier, and absolute or relative divergence time as appropriate when focused on a branch (right side), it displays the local clock rate as well as the relative branch length. ( B) An information panel that can be made visible by pressing the icon marked with an “ i”. A scale bar for absolute divergence times is shown. ( A) Timetree inferred in MEGA6 and shown in the Tree Explorer, where it is displayed with divergence times and their respective 95% confidence intervals.

Scanmaster-elm version 6.0 mega