Abstract
The mRNA differential display technique was performed to investigate the differences of gene expression in the longissimus muscle tissues from Meishan and Large White pigs. One novel gene that was differentially expressed was identified through semi-quantitative RT-PCR and the cDNA complete sequence was then obtained using the rapid amplification of cDNA ends (RACE) method. The nucleotide sequence of the gene is not homologous to any of the known porcine genes. The sequence prediction analysis revealed that the open reading frame of this gene encodes a protein of 180 amino acids that contains the putative conserved domain of ADP-ribosylation factor (ARF) which has high homology with the ADP-ribosylation factor 4 (ARF4) of six species—bovine (98%), human and orangutan (96%), African clawed frog (96%), mouse and rat (98%)—so that it can be defined as swine ADP-ribosylation factor 4 (ARF4). This novel porcine gene was finally assigned to GeneID:595108. The phylogenetic tree analysis revealed that the swine ARF4 has a closer genetic relationship with the rat and mouse ARF4 than with those of human and African clawed frog. The tissue expression analysis indicated that the swine ARF4 gene is over expressed in muscle, fat, heart, spleen, liver, and ovary and moderately expressed in lung and kidney but weakly expressed in small intestine. Our experiment is the first to establish the primary foundation for further research on the swine ARF4 gene.
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Liu, G.Y., Xiong, Y.Z. Molecular cloning and expression analyses of a novel swine gene-ARF4. Mol Biol Rep 36, 455–460 (2009). https://doi.org/10.1007/s11033-007-9201-4
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DOI: https://doi.org/10.1007/s11033-007-9201-4