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
77538025	G	T	False	1	0.25	0.0	0.0	False	False	0.25/4	0.00/5	0.00/11	0.00/5	0.00/2	0.00/3	0.00/4	0.00/6	0.00/6
77538026	G	C	False	1	0.25	0.0	0.053	False	False	0.25/4	0.00/5	0.00/11	0.00/5	0.00/2	0.00/3	0.00/4	0.00/6	0.17/6
77538055	C	T	True	1	0.5	0.75	0.0	True	True	0.50/4	1.00/2	0.00/1	0.50/2	1.00/3	0.00/8	0.00/1	0.00/1	0.00/4
77538072	G	T	False	3		0.4	0.0	False	False	0.50/2	0.25/4	0.44/9	0.60/5	0.00/2	0.00/4	0.00/5	0.00/7	0.00/4