Section 3
Perspectives on the Phylogenetic Tree
Book
Version 32
By Boundless
By Boundless
Boundless Biology
Biology
by Boundless
4 concepts
![Thumbnail](../../../../../../figures.boundless-cdn.com/20380/square/tree-20of-20life.jpeg)
Limitations to the Classic Model of Phylogenetic Trees
The concepts of phylogenetic modeling are constantly changing causing limitations to the classic model to arise.
![Thumbnail](../../../../../../figures.boundless-cdn.com/19059/square/figure-20-03-02.jpeg)
Horizontal Gene Transfer
Horizontal gene transfer (HGT) is the passing of genetic material between species by mechanisms other than from parent to offspring.
![Thumbnail](../../../../../../figures.boundless-cdn.com/19060/square/figure-20-03-03.jpeg)
Endosymbiotic Theory and the Evolution of Eukaryotes
Genome fusion occurs during endosymbiosis, which is the mechanism proposed as responsible for the first eukaryotic cells.
![Thumbnail](../../../../../../figures.boundless-cdn.com/19063/square/figure-20-03-06.jpeg)
Web, Network, and Ring of Life Models
To more accurately describe the phylogenetic relationships of life, web and ring models have been proposed as updates to tree models.