Phylogenetics Flashcards
1
Q
What is meant by orthologous?
A
Changed by descent
2
Q
What is meant by paralogous?
A
Changed by a gene duplication/divergence event
3
Q
What is meant by xenolougous?
A
Changed by horizontal gene transfer
4
Q
What are the 2 most common rooting methods for trees?
A
Outgroup rooting
Midpoint rooting
5
Q
What is outgroup rooting?
A
Including one or more outgroups that you have external evidence diverged earlier than any of the ingroups diverged from each other
6
Q
What is midpoint grouping?
A
Assumes equal rates of evolution and that the longest pathway between any 2 OTUs represents the most distant separation
