Hi everyone,

In order to run a population genetic study about several fish species without any reference genome, we are currently running a RADseq procedure on pooled samples (one tag = one species = 15-20 individuals). We hope to filter and retain approximatively 200 informative SNP markers for each species.

The next step will consist in genotyping our individuals at each loci of interest. Our first trail was to use the Campbell et al. (2015) Genotyping-in-thousands by sequencing (GT-seq) method which implies a very highly multiplexed PCR (the authors amplified every 192 of their markers in a single PCR plate-well).

Have you ever planned to use (or even heard about) this method, and what do you think about the fact of such a multiplex level ?

GT-seq seems very similar to current amplicon resequencing method (e.g truseq custom amplicon) and a very promising method, but also seems more challenging than it could in the first place. Therefore I would be strongly interested in your opinion :) I would also be interested in knowing how many markers you did amplify yourself in such a case, as an illustration :)

Thank you very much for your advise, all of you have a very nice day !

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