Open AccessGenetic polymorphism of β‐livetin in egg yolk of hens
Author(s) -
JUNEJA R. KUMAR,
KURYL JOLANTA,
WILHELMSON MARTIN
Publication year - 1983
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1111/j.1601-5223.1983.tb00897.x
Subject(s) - biology , yolk , allele , locus (genetics) , agarose , population , genetics , polyacrylamide gel electrophoresis , phenotype , microbiology and biotechnology , agarose gel electrophoresis , gene , biochemistry , food science , enzyme , demography , sociology
The water soluble proteins (livetins) of hen's egg yolk were separated by two‐dimensional agarose gel (pH 5.4)‐polyacrylamide gel (pH 9.0) electrophoresis. Three different phenotypes of β‐livetin (Lt) were observed. Family data supported the hypothesis that these Lt phenotypes are controlled by two codominant, autosomal alleles ( Lt F and Lt S ) at a single locus. Each of the Lt alleles gave rise to five main fractions in a row. The frequency of Lt S was estimated to be about 0.7 in a population of White Leghorn, whereas 30 random samples each of Rhode Island Red and New Hampshire breeds had the Lt s allele only. The Lt F fractions were observed to be weaker than Lt S fractions, which was attributed to Lt F fractions being more readily converted to aggregate forms than the Lt S fractions.