Abstract:ABSTRACT. Polymorphisms in candidate genes can produce significant and favorable changes in the phenotype, and therefore are useful for the identification of the best combination of favorable variants for marker-assisted selection. In the present study, an assessment to evaluate the effect of 11 single nucleotide polymorphisms (SNPs) in candidate genes on live weight traits of registered Brahman cattle was performed. Data from purebred bulls were used in this assessment. The dataset included birth (BW), weanin… Show more
“…Certain genotypic tendencies are better than others also not seen, although IGFBP-3 is one of the genes responsible for growth, it has a unique mechanism of work that is not yet fully known (Allard and Duan, 2018). IGFBP-3 has indirectly effect on cattle growth, unlike, for example, the Growth Hormone gene, which directly influences the cattle growth (Hernández et al, 2016).…”
Crossing between cattle breeds is the one way to improve the genetic quality of cattle. Controlling crosses using genetic markers will speed up the process. The IGFBP-3 gene is a potential marker of selection due to its role in regulating growth and metabolism in cattle. The aim of this study was to determine the effect of genotype on birth size and birth weight using IBFBP-3 gene marker. A total of 32 cattle consisted of 10 Brahman Cross cattle, 14 cattle results of Brahman Cross cow crosses with Belgian Blue bull, and 8 cattle results of Brahman Cross cow crosses with Wagyu bull. Sequences of 563 bp, including the part intron 2, exon 3, and the part intron 3. Genotyping was done by sequencing method and PCR-RFLP method with the restriction enzyme PvuII. An SNP was identified at location g 3,930 (G>A). Two genotypes were observed, namely GA and GG. The genotype did not affect the performance of birth (body weight, body length, height at withers, heart girth) of the research sample. Birth traits are influenced by the cattle breed, it can be seen that Brahman Cross cattle have a body length that is bigger than the other crossbred.
“…Certain genotypic tendencies are better than others also not seen, although IGFBP-3 is one of the genes responsible for growth, it has a unique mechanism of work that is not yet fully known (Allard and Duan, 2018). IGFBP-3 has indirectly effect on cattle growth, unlike, for example, the Growth Hormone gene, which directly influences the cattle growth (Hernández et al, 2016).…”
Crossing between cattle breeds is the one way to improve the genetic quality of cattle. Controlling crosses using genetic markers will speed up the process. The IGFBP-3 gene is a potential marker of selection due to its role in regulating growth and metabolism in cattle. The aim of this study was to determine the effect of genotype on birth size and birth weight using IBFBP-3 gene marker. A total of 32 cattle consisted of 10 Brahman Cross cattle, 14 cattle results of Brahman Cross cow crosses with Belgian Blue bull, and 8 cattle results of Brahman Cross cow crosses with Wagyu bull. Sequences of 563 bp, including the part intron 2, exon 3, and the part intron 3. Genotyping was done by sequencing method and PCR-RFLP method with the restriction enzyme PvuII. An SNP was identified at location g 3,930 (G>A). Two genotypes were observed, namely GA and GG. The genotype did not affect the performance of birth (body weight, body length, height at withers, heart girth) of the research sample. Birth traits are influenced by the cattle breed, it can be seen that Brahman Cross cattle have a body length that is bigger than the other crossbred.
“…One of the genes that affect animal weight is the Leptin / LEP gene (Hernandez et al, 2016). Leptin is a hormone that is produced in white adipose tissue and secreted into the bloodstream as a 16 KD protein.…”
Abstract. Anugratama LE, Hartatik T. 2020. Short Communication: Identification of Leptin gene in crossbred beef cattle. Biodiversitas 21: 226-230. Leptin is a gene that affects animal weight. Leptin gene is known to control body weight, feed intake, energy expenditure, immune function, and reproduction. This study aims to identify the diversity of the Leptin gene in crossbred beef cattle, Sumba Ongole cattle, Brahman cross cattle, Bali cattle, buffalo, sheep, and goat by comparing with four GenBank data of cattle. Crossbred beef cattle obtained from Klaten, Central Java, Indonesia. Leptin nucleotide sequences were analyzed using BioEdit to identify Single Nucleotide Polymorphism (SNP). To create amino acid change in Leptin gene, the coding sequence of exon 2 was established using BioEdit ver. 7.0.5. Phylogenetic tree and genetic distance have been analyzed based on the Leptin gene using MEGA 10.1.1 program. The result shows that eight variations of SNP were found in exon 2. The phylogenetic tree represents that crossbreed beef cattle, Sumba Ongole cattle, Brahman cross cattle, Bali cattle, Bos taurus, Bos indicus, Bos frontalis, Bos grunniens, Bubalus bubalis are in the same cluster with various genetic distance. The results of this study are expected to provide genetic information that will be used for further research on the relationship between Leptin gene polymorphisms to animal weight.
“…One of these genes, which is potentially polymorphic with a lot of selection benefit is the growth hormone gene [3]. Several studies have indicated the association between polymorphism of the bovine growth hormone (GH) gene and production traits although with divergent results in some cases [4][5][6]. Growth hormone is a polypeptide hormone secreted by somatroph cells from the anterior pituitary glands [7].…”
Growth Hormone (GH) is a single polypeptide chain synthesised and secreted from anterior pituitary gland by somatroph cells. The product of GH gene hastens metabolism and promotes the growth of many organs and tissues especially bone, muscle and visceral organs. It also regulates growth, mammary gland development and lactation. Polymorphism in this gene is associated with increase in growth and development of many tissues in the body.
Aim: The objective of this study was to investigate the polymorphism of bovine growth hormone (bGH) gene in buffalo bulls (Bubalus bubalis) using the PCR-RFLP (polymerase chain reaction–restriction fragment length polymorphism) technique.
Design: Genomic DNA was extracted from a total of 10 bulls, consisting of Murrah – Swamp crossbred and pure Swamp buffalo bulls. A The 446 segment of the bGH gene was amplified. The DNA amplicons were detected in 2% agarose gel following 45 minutes of electrophoresis. They were thereafter digesting with AluI endonuclease restriction enzyme, and the digested DNA were detected in 2% agarose gel following electrophoresis for about 45minutes in all samples
Results: Similar bands of approximately 300 and 146-bp each, with no variation, were detected in 2% agarose gel following electrophoresis in all the animals tested.
Conclusion: Based on the Alu1 digestion result, all samples produced the same allele of the gene, with no polymorphism detected.
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