Phylogenetics Flashcards

1
Q

Radiation

A

Rapid diversification

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2
Q

Difficulty to establish phylogenetic relationships of raspier radiation

A

Few mutations are fixed in short time

Incomplete lineage sorting (large populations )

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3
Q

Incomplete lineage sorting

A

Causes gene tree and species tree to differ

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4
Q

Intorgression

A

Gene mixing by
Hybridisation or HGT
Causes genome regions to have conflicting gene trees

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5
Q

Usage of phylogenies

A
Dating evolutionary events
Discovering history of genes and cultures
Reconstructing ancestors
Studying adaptions
Classification
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6
Q

Crown group

A

Living members of a group together with their last common ancestor

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7
Q

Stem group

A

Larger clade of related extinct lineages

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