Introduction:
Phylogenetic tree also known as evolutionary tree depicts the connection between various species of animals and plants based on their physical and genetic traits. Top points of the trees symbolize descendent common species whereas nodes symbolize common ancestor of descendents. Phylogenetic trees very effectively show the evolution that took place by adaptive and sudden ancestry splits. The Phylogenetic trees can be classified mainly in four types rooted tree, un-rooted tree, bifurcating tree and special tree types.
The basal universal phylogenetic tree inferred from comparative analyses of rRNA sequences.
1. Horizontally acquired variations – Horizontal acquire variations occurs due to horizontal gene transfer. Horizontal gene transfer also known as lateral gene transfer is a ...