Genetic differences in natural antibody levels in common carp (Cyprinus carpio L.). 2006

Neli M Kachamakova, and Ilgiz Irnazarow, and Henk K Parmentier, and Huub F J Savelkoul, and Andrzej Pilarczyk, and Geert F Wiegertjes
Polish Academy of Sciences, Institute of Ichthyobiology and Aquaculture, Gołysz, 43-520 Chybie, Poland.

In mammals, natural antibodies (Nabs) are mostly of the IgM isotype and can bind to a particular antigen or pathogen even if the host has never been exposed. Despite their early detection and abundance, the exact role and genetic control of Nabs remain unclear. We have used an indirect ELISA with three different antigens (keyhole limpet haemocyanin, chicken ovalbumin and bovine serum albumin) to demonstrate the ubiquitous presence of Nabs in common carp. Serum levels of Nabs increased with age, i.e. 10-month-old fish showed higher levels than 4-month-old fish. Also, fish grown in earth ponds showed higher levels of Nabs than fish grown in a clean environment of UV-treated water. Furthermore, we show that Nabs are present in different levels in the serum of carp lines with a different genetic background, suggestive of a genetic control. These genetic differences were independent of antigen, age and environment. Genetic differences in levels of Nabs could not unequivocally be related to differences in survival under farmed conditions. The possibilities for using levels of Nabs as marker criterion for selection for genetic disease resistance are discussed.

UI MeSH Term Description Entries
D010047 Ovalbumin An albumin obtained from the white of eggs. It is a member of the serpin superfamily. Serpin B14
D012044 Regression Analysis Procedures for finding the mathematical function which best describes the relationship between a dependent variable and one or more independent variables. In linear regression (see LINEAR MODELS) the relationship is constrained to be a straight line and LEAST-SQUARES ANALYSIS is used to determine the best fit. In logistic regression (see LOGISTIC MODELS) the dependent variable is qualitative rather than continuously variable and LIKELIHOOD FUNCTIONS are used to find the best relationship. In multiple regression, the dependent variable is considered to depend on more than a single independent variable. Regression Diagnostics,Statistical Regression,Analysis, Regression,Analyses, Regression,Diagnostics, Regression,Regression Analyses,Regression, Statistical,Regressions, Statistical,Statistical Regressions
D001798 Blood Proteins Proteins that are present in blood serum, including SERUM ALBUMIN; BLOOD COAGULATION FACTORS; and many other types of proteins. Blood Protein,Plasma Protein,Plasma Proteins,Serum Protein,Serum Proteins,Protein, Blood,Protein, Plasma,Protein, Serum,Proteins, Blood,Proteins, Plasma,Proteins, Serum
D002347 Carps Common name for a number of different species of fish in the family Cyprinidae. This includes, among others, the common carp, crucian carp, grass carp, and silver carp. Carassius carassius,Crucian Carp,Cyprinus,Grass Carp,Carp,Ctenopharyngodon idellus,Cyprinus carpio,Hypophthalmichthys molitrix,Koi Carp,Silver Carp,Carp, Crucian,Carp, Grass,Carp, Koi,Carp, Silver,Carps, Crucian,Carps, Grass,Carps, Silver,Crucian Carps,Grass Carps,Silver Carps
D004777 Environment The external elements and conditions which surround, influence, and affect the life and development of an organism or population. Environmental Impact,Environmental Impacts,Impact, Environmental,Impacts, Environmental,Environments
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D006433 Hemocyanins Metalloproteins that function as oxygen transport proteins in the HEMOLYMPH of MOLLUSKS and ARTHROPODS. They are characterized by two copper atoms, coordinated with HISTIDINE residues, that reversibly bind a single oxygen molecule; they do not contain HEME groups. Hemocyanin,alpha-Haemocyanin,alpha-Hemocyanin,alpha-Hemocyanins,alpha Haemocyanin,alpha Hemocyanin,alpha Hemocyanins
D000367 Age Factors Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time. Age Reporting,Age Factor,Factor, Age,Factors, Age
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000906 Antibodies Immunoglobulin molecules having a specific amino acid sequence by virtue of which they interact only with the ANTIGEN (or a very similar shape) that induced their synthesis in cells of the lymphoid series (especially PLASMA CELLS).

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