Viral DNA fragments that potentially contain oriP were cloned into a plasmid that contains the hygromycin resistance gene .
viral dna fragments that potentially contain orip were cloned into a plasmid that contains the hygromycin resistance gene .
B-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group O O O B-DNA_domain_or_region O O O O B-DNA_molecule O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O