| genetic variability in the three mitochondrial genes among oesophagostomum asperum isolates from different regions in shaanxi and hunan provinces, china. | the present study examined sequence variations in three mitochondrial dna (mtdna) regions, namely, nadh dehydrogenase subunit 5 (nad5), adenosine triphosphate subunit 6 (atp6) and cytochrome c oxidase subunit 3 (cox3), among oesophagostomum asperum isolates from different regions in shaanxi and hunan provinces, china. the lengths for partial sequences of nad5 (pnad5), atp6 (patp6) and cox3 (pcox3) were 427 bp, 381 bp and 337 bp, respectively. the intra-specific sequence variations among all o. a ... | 2014 | 23795833 |