Author Contributions
KKP, OPL and DDH conceived this work. KKP wrote the manuscript and collected all the data. KWW assisted with de-novo transcriptome assembly and SNP characterization. OPL, ALP, FV, NTA, FF, KW, MMR, HGG, AM, BGS and JW were involved in sample design and/or sample collection for the population genetic study. KKP, OPL, ALP and FV were involved in RNASeq sample design and/or collection. KKP conducted the data analyses and wrote the first draft of the manuscript and all authors contributed to the revisions of the manuscript.