Angora Goats With Local Goats Chromosome Study

Study on the Chromosomes of Angora and Native Goats Abstract The peripheral blood lymphocyte culture method, chromosomal karyotypic and banding techniques were used to study the chromosomal karyotypes, G-band and C-band of Angora goats (10 male and 10 female) and Shanxi Native goats (8 male and 7 female). The results showed that the number of diploid chromosomes of Angora and Native goats was 2n~6O, (male 60,XX, female 60,XY).All the 29 homologous pairs of autosomes and the X chromosome were acrocentric chromosomes. The Y chromosome was submetacentric in Angora goats, and metacentric in Native goats. In addition, the X chromosome was the longest, whereas the Y chromosome was the shortest in the chromosome complement. The results of measuring chromosome showed that the relative length of all autosomes was mostly similar between Angora and Native goats; however, the sexual chromosomes not only were different in morphology but also had significant difference (P