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
19915101	G	C	True	1	0.25	0.0	0.0	False	False	0.25/4	0.00/3	0.00/6	0.00/6	0.00/2	0.00/3	0.00/8	0.00/4	0.00/3
19915318	C	G	True	1	0.0	0.0	0.059	False	False	0.00/5	0.00/3	0.00/5	0.00/7	0.00/3	0.00/4	0.00/6	0.25/4	0.00/3
19915320	C	G	True	1	0.0	0.0	0.105	False	False	0.00/5	0.00/3	0.00/5	0.00/7	0.00/3	0.00/4	0.00/6	0.25/4	0.20/5
19915324	C	A	True	1	0.0	0.0	0.059	False	False	0.00/5	0.00/3	0.00/5	0.00/7	0.00/4	0.00/4	0.00/6	0.00/3	0.25/4
19915326	C	A	True	1	0.0	0.0	0.059	False	False	0.00/5	0.00/3	0.00/5	0.00/7	0.00/4	0.00/4	0.00/6	0.00/3	0.25/4
19915368	C	A	True	1	0.0	0.0	0.059	False	False	0.00/5	0.00/3	0.00/4	0.00/9	0.00/3	0.00/3	0.00/3	0.25/4	0.00/7
19915373	G	T	True	1		0.0	0.056	False	False	0.00/3	0.00/4	0.00/2	0.00/4	0.00/1	0.00/3	0.25/4	0.00/4	0.00/7
19915517	T	C	True	1	0.0	0.067	0.077	False	False	0.00/16	0.14/7	0.00/15	0.00/14	0.22/9	0.43/7	0.00/11	0.00/8	0.00/13
19915521	C	A	True	1	0.0	0.037	0.0	False	False	0.00/10	0.25/4	0.00/9	0.00/9	0.00/5	0.00/5	0.00/7	0.00/4	0.00/8
19915560	C	A	True	1	0.0	0.071	0.0	False	False	0.00/11	0.00/5	0.11/9	0.00/10	0.25/4	0.00/6	0.00/10	0.00/4	0.00/7
19915605	G	C	True	1	0.0	0.0	0.059	False	False	0.00/4	0.00/3	0.00/6	0.00/3	0.00/4	0.00/3	0.00/8	0.00/2	0.25/4
19915821	C	T	True	1	0.0	0.05	0.0	False	True	0.00/7	0.25/4	0.00/5	0.00/3	0.00/8	0.00/7	0.00/9	0.00/6	0.00/5
19915980	G	C	True	1	0.0	0.0	0.091	False	False	0.00/4	0.00/4	0.00/4	0.00/5	0.00/1	0.25/4	0.00/2		0.00/5