pos	ref	alt	in_target	n_oysters_with_alt	alt_freq_Pum	alt_freq_Qui	alt_freq_Rio	pop_differentiated	cpg_destroying	Pum1	Qui1	Qui2	Qui3	Qui4	Rio1	Rio2	Rio3	Rio4
18944761	G	A	True	1		0.444	1.0	True	True		0.50/2	0.00/2	0.00/2	1.00/3	1.00/6	1.00/3	1.00/2	1.00/1