Author Contributions
MTRH, MCS, and JAL organized field work; MTRH and MCS conducted field
work; MTRH, JAL, JEM, and LDP designed the study; JAL, JEM, and LLR
provided resources for the study; MTRH and LDP did laboratory work; LDP
wrote the manuscript and performed SNP analyses; MTRH performed
phylogenetic analyses; MCS contributed figures; TRW, HCL, and MGC
assisted in bioinformatics; MGC and JAW developed vcf2aln; all authors
participated in revisions and acceptance of the final version of the
manuscript.