title: The intertidal harpacticoid copepod Tigriopus japonicus (Crustacea: Copepoda) beta-actin gene: cloning, sequence and intraspecies variation.
abstract: The Tigriopus japonicus beta-actin genes were amplified from genomic DNA by polymerase chain reaction (PCR) and cloned into pCRII vector. Several clones of the T. japonicus beta-actin gene spanned 1662-1676 bp with gains or losses of some bases in intron 3 or 4 but they consisted generally of 5 exons and 4 introns with very high homology, implying polymorphism of this gene. The exon and intron boundaries were matched with the GT/AG rule. The T. japonicus beta-actin gene showed high homology to the fish (Rivulus marmoratus) and human genes, 99.2 and 98.4%, respectively at the amino acid sequence level. The phylogenetic implications inferred from the T. japoncius beta-actin gene are discussed.
authors: Department of Biochemistry, College of Medicine, Hanyang University, Seoul 133-791, South Korea.
authors: Il-Chan
authors: IC
authors: Kim
authors: Young Ja
authors: YJ
authors: Kim
authors: Sung Joon
authors: SJ
authors: Song
authors: Jae-Seong
authors: JS
authors: Lee
authors: Wonchoel
authors: W
authors: Lee
mesh_terms: D000199:Actins / Q000235:genetics*; D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D033342:Copepoda / Q000235:genetics*; D017931:DNA Primers; D014644:Genetic Variation; D008969:Molecular Sequence Data; D010802:Phylogeny; D017422:Sequence Analysis, DNA
chemical_list: D000199:Actins; D017931:DNA Primers