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Polymorphism and inheritance of serum esterases and β‐globulins in the paradise fish (Macropodus opercularis; Anabantidae)
Author(s) -
Monostory Zsuzsa,
Nagy András,
Gervai Judit,
Csányi Vilmos
Publication year - 1984
Publication title -
animal blood groups and biochemical genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.756
H-Index - 81
eISSN - 1365-2052
pISSN - 0003-3480
DOI - 10.1111/j.1365-2052.1984.tb01091.x
Subject(s) - biology , subspecies , mendelian inheritance , genetics , locus (genetics) , allele , backcrossing , esterase , transferrin , population , hybrid , isoelectric focusing , microbiology and biotechnology , gene , zoology , enzyme , botany , biochemistry , demography , sociology
Summary Electrophoretic variants of serum esterases and β‐globulins in two subspecies of paradise fish ( Macropodus opercularis ) were studied. Four esterase loci ( Est‐1, Est‐2, Est‐3 and Est‐4 ), a single transferin ( Tf ) and another major β‐globulin locus ( Bg ) were identified by segregational analysis. Est‐3 seems to be a monomorphic. locus. Three alleles of Est‐1 , two of Est‐2 , two of Est‐4 , four of Tf and two alleles of Bg were found in the laboratory population. None of these loci were closely linked. Electrophoretic patterns of F 1 hybrids confirmed the monomeric structures of each of the studied proteins. Allelic segregation at the Tf and Bg loci was normal in F 2 and backcross populations. In crosses of the two Macropodus subspecies there were deviations from Mendelian ratios because of missing recombinant esterase phenotypes. Each of these would have been homozygous Est‐2 f/f . We suppose that Est‐2 f/f causes lethality in the early phase of development, except in the Est‐1 c/c , Est‐2 f/f combination characteristic of the parental subspecies M.o. concolor .