How To Find The Origin Of A Gene?
I am wondering how to determine in which organism a gene of interest first came into existence. It is possible to say from the phylogenetic tree or by other means?
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If you're looking at two modern organisms, the it most likely didn't occur first in either of them, but arose in a common ancestor. (convergent evolution being the rare, but possible exception)
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Chris Miller
Unless you're taking horizontal gene transfer into account, the point stands.
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