Eksplorasi Gen Growth Hormone Exon 3 Pada Kambing Peranakan Etawah (PE), Saanen Dan Pesa Melalui Teknik PCR-SSCP
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This research was conducted to identify genetic polymorphism at the exon 3 growth hormone gene in three goat breeds. Polymorphisms at exon 3 growth hormone gene was identified by single strand conformational polymorphism polymerase chain reaction (SSCP-PCR) method. The DNA of 234 goat used were Etawah Grade (98 samples), Saanen (92 samples) and their crossbred (44 samples) in Cariu, Ciapus, Sukajaya, Cijeruk, Balitnak and Sukabumi. The PCR-SSCP method was performed at 250 V for 8 hours using 12% of acrylamide concentration. The result showed that the annealing temperature is 60 0C. The PCR product was 157 bp (base pair). The result SSCP method found four conformational patterns. The genotype frequency in exon 3 are AA (0,205), AB (0,856), AC (0,163) and BC (0,045). Beside that it was found three allele (allele A, B, and C). The highest frequencies were allele A (0,602) and B (0,443) at Saanen, Etawah Grade and their crossbred goat. The highest genotype frequency was AB at three goat breeds. The highest heterozygosity was found in Etawah Grade, Saanen and their crossbred goat (0,938). Exon 3 GH gene on three breeds goat have high polymorphism in six population.