Phylogenetics Flashcards
1
Q
Radiation
A
Rapid diversification
2
Q
Difficulty to establish phylogenetic relationships of raspier radiation
A
Few mutations are fixed in short time
Incomplete lineage sorting (large populations )
3
Q
Incomplete lineage sorting
A
Causes gene tree and species tree to differ
4
Q
Intorgression
A
Gene mixing by
Hybridisation or HGT
Causes genome regions to have conflicting gene trees
5
Q
Usage of phylogenies
A
Dating evolutionary events Discovering history of genes and cultures Reconstructing ancestors Studying adaptions Classification
6
Q
Crown group
A
Living members of a group together with their last common ancestor
7
Q
Stem group
A
Larger clade of related extinct lineages