Chalit KomalamisraMahidol University2018-09-072018-09-071999-09-01Southeast Asian Journal of Tropical Medicine and Public Health. Vol.30, No.3 (1999), 576-579012515622-s2.0-0033187476https://repository.li.mahidol.ac.th/handle/123456789/25585Chromosome of Opisthorchis viverrini was observed by air-drying and C-banding techniques. The chromosome number was 2n=12 and n=6 consisting of one large-sized metacentric, one medium-sized metacentric, one small-sized metacentric, one small-sized submetacentric or subtelecentric, one small-sized subtelocentric or acrocentric and one small-sized acrocentric. The relative lengths of the chromosomes were 32.02 ± 2.52, 23.28 ± 1.98, 15.24 ± 3.40, 13.39 ± 3.11, 10.18 ± 1.56 and 5.82 ± 0.59 % respectively. After C-banding treatment, two of the small-sized chromosomes showed a remarkable constitutive heterochromatin.Mahidol UniversityMedicineArticleSCOPUS