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Question about Phylogenetic Trees generated by MEGA 4.0

Genetics as it applies to evolution, molecular biology, and medical aspects.

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Question about Phylogenetic Trees generated by MEGA 4.0

Postby twinmomma » Thu Jul 03, 2008 12:34 am

Hi,
I'm new to this forum and I joined because I have a pretty specific` question. I'm creating some phylogenetic trees from sequences from bacteria that I grow, and I'm a bit confused as to what the line shown at the bottom of the tree means. I've uploaded an attached pic. I know its a scale of some sort, probably evolutionary distance, but I just wondered if anyone could clarify for me? If anyone has used the program MEGA that would help as well.

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Postby mith » Thu Jul 03, 2008 5:51 pm

Hard to say, I've used this program and I think there's a way to toggle distances(line length reflects distance), check that to see if the bar length changes with it.
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