: These sites provide the necessary evidence to "choose" between different tree structures because they represent shared derived characteristics among groups of taxa.
A site is considered parsimony-informative if it contains at least two different types of nucleotides (or amino acids), and at least two of those types appear at least twice in the alignment. : These sites provide the necessary evidence to
: The MEGA Software includes a Highlight Menu in its Sequence Data Explorer that allows users to instantly identify these sites within their dataset. Key Informative Features in MEGA Key Informative Features in MEGA Beyond specific sequence
Beyond specific sequence sites, the software provides several "informative" tools designed to help researchers interpret complex evolutionary data: MEGA Software
: A unique system that generates natural language descriptions of the models, methods, and parameters used in an analysis. It ensures that users understand the underlying assumptions of their results, such as the specific substitution models applied.
: A newer feature in MEGA12 that uses a sparse learning approach to identify "fragile" clades in a tree that might have been formed due to data-specific biases rather than true evolutionary signals. MEGA Software