| identification of nematodirus species (nematoda: molineidae) from wild ruminants in italy using ribosomal dna markers. | the sequence of the second internal transcribed spacer of ribosomal dna was determined for four species of nematodirus (nematodirus rupicaprae, nematodirus oiratianus, nematodirus davtiani alpinus and nematodirus europaeus) from roe deer or alpine chamois. the second internal transcribed spacer of the four species varied in length from 228 to 236 bp, and the g + c contents ranged from 41 to 44%. while no intraspecific sequence variation was detected among multiple samples representing three of t ... | 1999 | 10616927 |