chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 170580487 170580488 C A 13 GENIC homozygous 108376195 1 170580606 170580607 C A 6 GENIC homozygous 109437554 1 170580818 170580819 G A 25 GENIC homozygous 109437556