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
1816416	C	T	True	1	1.0	0.0		False	True	1.00/6	0.00/1	0.00/2	0.00/4	0.00/1				1.00/3
1816418	G	C	False	1	0.0	0.062	0.0	False	False	0.00/5	0.25/4	0.00/4	0.00/6	0.00/2	0.00/3	0.00/7	0.00/6	0.00/5
1816445	A	G	False	1	0.0	0.0	0.048	False	False	0.00/10	0.00/4	0.00/6	0.00/8	0.00/4	0.25/4	0.00/4	0.00/5	0.00/8
1816447	A	G	False	1	0.0	0.0	0.048	False	False	0.00/9	0.00/5	0.00/6	0.00/8	0.00/4	0.25/4	0.00/4	0.00/5	0.00/8