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
77439122	T	A	False	1	0.0	0.0	0.062	False	False	0.00/6	0.00/7	0.00/3	0.00/6	0.00/8	0.00/3	0.00/5	0.25/4	0.00/4
77439128	C	A	False	1	0.5	0.0	0.0	False	False	0.50/4	0.00/4	0.00/3	0.00/2	0.00/7	0.00/1	0.00/1	0.00/3	0.00/3
77439148	C	G	False	1	0.0	0.048	0.0	False	False	0.00/4	0.00/4	0.00/4	0.25/4	0.00/9	0.00/4	0.00/4	0.00/3	0.00/4
77439161	G	A	True	1	0.75	0.556	0.0	True	True	0.75/4	0.50/2	1.00/1	0.33/3	0.67/3	0.00/1	0.00/4	0.00/1	0.00/2
77439164	G	C	False	1	0.25	0.0	0.0	False	False	0.25/4	0.00/1	0.00/1	0.00/3	0.00/3	0.00/1	0.00/4	0.00/1	0.00/2
77439168	G	T	False	1	0.25	0.0	0.0	False	False	0.25/4	0.00/1	0.00/1	0.00/4	0.00/3	0.00/1	0.00/4	0.00/1	0.00/2
77439208	G	T	False	1		0.636	0.0	True	False	0.50/2	0.50/2	1.00/1	0.67/6	0.50/2	0.00/1	0.00/4	0.00/2	0.00/2