maximum parsimony method
Quick Summary
The maximum parsimony method is a technique used in evolutionary biology to reconstruct evolutionary history by creating evolutionary trees. This method operates on the principle of Occam's razor, aiming to construct a tree that requires the fewest possible evolutionary changes across all branches. It assumes that the simplest explanation, involving the least number of changes, is the most likely.12
However, this method is not without controversy, as evolution does not always follow a minimum path. Sometimes, the same evolutionary change can occur independently on different branches, or involve intermediate steps, which can lead to an oversimplification of the evolutionary process. Maximum parsimony methods can account for different probabilities of evolutionary changes, such as the higher likelihood of transitions over transversions in DNA nucleotides.12
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
