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
18799990	C	T	True	2		0.0	0.692	True	True	0.67/3	0.00/4	0.00/5	0.00/9	0.00/3	0.50/2	1.00/2	0.60/5	0.75/4
18800013	G	T	False	2	0.167	0.0	0.5	True	False	0.17/6	0.00/2	0.00/6	0.00/8	0.00/9	0.67/6	1.00/3	0.17/6	0.40/5
18800030	T	A	False	5	0.875	0.0	0.6	True	False	0.88/8	0.00/7	0.00/14	0.00/16	0.00/12	0.56/9	1.00/6	0.42/12	0.62/8