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
1920490	C	A	False	3	0.857	0.0	1.0	False	False	0.86/7	0.00/1	0.00/2	0.00/2	0.00/2	1.00/1	1.00/1	1.00/4	1.00/4
1920501	G	A	True	3	1.0	0.0	1.0	True	True	1.00/4	0.00/4	0.00/4	0.00/5	0.00/2	1.00/5	1.00/7	1.00/2	1.00/3
1920502	G	T	False	3	1.0	0.0	1.0	True	False	1.00/4	0.00/4	0.00/5	0.00/5	0.00/2	1.00/5	1.00/7	1.00/2	1.00/3
1920523	A	G	False	1	0.0	0.042	0.0	False	False	0.00/12	0.00/7	0.00/6	0.00/7	0.25/4	0.00/8	0.00/9	0.00/7	0.00/7
1920546	A	G	False	1	0.0	0.071	0.0	False	False	0.00/10	0.10/10	0.00/7	0.00/7	0.25/4	0.00/7	0.00/9	0.00/8	0.00/8
1920551	G	T	False	1	0.25	0.0	0.0	False	False	0.25/4	0.00/8	0.00/5	0.00/4	0.00/2	0.00/5	0.00/6	0.00/3	0.00/5