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BIOINFORMATICS Two trees of insect Zeta GSTs are shown, one by neighbor-joining

ID: 162318 • Letter: B

Question

BIOINFORMATICS

Two trees of insect Zeta GSTs are shown, one by neighbor-joining and the other by maximum-likelihood method. Describe the similarities and differences in their topology-BETWEEN THE TWO GIVEN TREES (tree branching pattern). Try to use bootstrap value information to guide your conclusions. (GST = glutathione S-transferase genes). DO NOT GIVE DEFINITIONS. THIS IS ABOUT THE TWO TREES SHOWING NOT DEFITNIONS OF TERMS.

Maximum-likelihood Tree:

NEIGHBOR TREE SHOWN BELOW:

54 Cp GSTZ1 Aa GSTz1 Ag GSTZ1 Bm GSTZ1 97 4 100 NM GSTZ1 Am GSTZ1 Ph PHUM 36630 Tc 09842 Dm CG9363 Dm CG93622 ENSP00000216465 0.2

Explanation / Answer

The maximum likelihood tree is star topology wheremost of the nodes have branches .

The neighbour tree is ring topology in which all nodes are connected in a ring and are not branches completely.