PhiST with AMOVA

[Kristopher Wojtusik]

Hello All,

We used poppr to do an amova for our study and a reviewer has called out the use phiST as a measure of differentiation and says it is designed to use %basepair differences amond DNA sequences, which obviously SNP data do not have. 

We know that poppr (or pegas since that's the method we used), adjusts the data to Euclidian distance and then runs the AMOVA on that, but we were wondering if anyone had resources about this, or a more thorough explanation of this. Thank you.

-Kris

[Zhian Kamvar]

Meirmans and Liu 2018 gives a pretty good summation of the issue at hand in the section titled "The AMOVA Framework": https://www.frontiersin.org/articles/10.3389/fevo.2018.00066/full

The details of how poppr implements AMOVA is found in https://grunwaldlab.github.io/poppr/reference/poppr.amova.html#details

hope that helps.

Zhian

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[Kristopher Wojtusik]

Thank you for the resources Zhian! They are helpful and at the very least will give us something to cite in our rebuttal.

-Kris