집돼지와 멧돼지間 雜種의 染色體傷에 關한 硏究

Chromosomal patterns in subinterspecies crossbred between Sus scorfa L. and Sus coreanus

This experiment was carried out to investigate the number of chromosome and its phase between wild pig Sus coreanus, and crossbred which was crossed between Sus scorfa L. and Sus coreanus. The results obtained from this study are as follows : 1. The chromosome numbers, including sex chromosomes, of the Korean wild pig(S. coreanus) were 38. 2. In chromosomal patterns of the wild, domestic and its crossbred pigs showed the same chromosomal phase such as the #1, #3, #4, #5, #6, #7, #9, and #10 chromosomes were submetacentric, and the #11, #12, #13, #15, #17, and Y chromosomes were metacentric, but the X chromosome was metacentric in the domestic, whereas submetancentric in the wild pig. 3. The arm ratios and centromeric indexes in all homologous chromosomes in the domestic and wild pigs showed significantly different at P＜0.05. 4. In the acrocentric chromosomes, in the wild and domestic pigs, the #2 and #18 chromosomes were significant difference, but in the crossbred showed half of its chromosomes. It means that the genetic materials of the crossbred are transmitted the ratio of about 50% from each of his parents.