title: Molecular Characterization and Growth Association of Two Apolipoprotein A-Ib Genes in Common Carp (Cyprinus carpio).
abstract: Apolipoprotein A-I (ApoA-I) is functionally involved in the transportation and metabolism of lipids in vertebrates. In this study, two isoforms of apoA-Ib in common carp (Cyprinus carpio L.) were characterized. Sequence comparison and phylogenetic analysis showed that C. carpio ApoA-Ib is relatively conserved within cyprinid fishes. During embryonic development, C. carpio apoA-Ib was first expressed at the stage of multi-cells, and the highest mRNA level was observed at the stage of optic vesicle. A ubiquitous expression pattern was detected in various tissues with extreme predominance in the liver. Significantly different expression levels were observed between light and heavy body weight groups and also in the compensatory growth test. Seventeen and eight single-nucleotide polymorphisms (SNPs) were identified in matured mRNA of the C. carpio apoA-Ib.1 and apoA-Ib.2, respectively. Two of these SNPs (apoA-Ib.2-g.183A>T and apoA-Ib.2-g.1753C>T) were significantly associated with body weight and body length in two populations of common carp. These results indicate that apoA-Ib may play an important role in the modulation of growth and development in common carp.
authors.affiliation: State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, the Chinese Academy of Sciences, Wuhan 430072, China. xinhuawang123@163.com.|Graduate School, University of Chinese Academy of Sciences, Beijing 100049, China. xinhuawang123@163.com.
authors.forename: Xinhua
authors.initials: X
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, the Chinese Academy of Sciences, Wuhan 430072, China. xmyu@ihb.ac.cn.
authors.forename: Xiaomu
authors.initials: X
authors.lastname: Yu
authors.affiliation: State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, the Chinese Academy of Sciences, Wuhan 430072, China. jgtong@ihb.ac.cn.
authors.forename: Jingou
authors.initials: J
authors.lastname: Tong
mesh_terms: D000483:Alleles; D000595:Amino Acid Sequence; D000818:Animals; D016632:Apolipoprotein A-I / Q000145:classification / Q000235:genetics / Q000378:metabolism*; D002347:Carps / Q000254:growth & development / Q000378:metabolism*; D047108:Embryonic Development / Q000502:physiology; D029941:Fish Proteins / Q000145:classification / Q000235:genetics / Q000378:metabolism*; D008969:Molecular Sequence Data; D010802:Phylogeny; D020641:Polymorphism, Single Nucleotide; D012333:RNA, Messenger / Q000378:metabolism; D016415:Sequence Alignment
chemical_list: D016632:Apolipoprotein A-I; D029941:Fish Proteins; D012333:RNA, Messenger
keywords: Cyprinus carpio; apolipoprotein A-I; compensatory growth; gene expression; growth association