Maeda Y, Washburn K W, Marks H L
Anim Blood Groups Biochem Genet. 1980;11(4):251-60. doi: 10.1111/j.1365-2052.1980.tb01516.x.
The polymorphism of five enzyme loci (amylase, alkaline phosphatase, albumin, for 4-week body weight was compared to that of the unselected control line (C). Three loci in the C line and two in the P line demonstrated polymorphism. Plasma amylase was separated into six bands and zymograms were classified on the basis of these bands into nine phenotypes. Three of the nine types were of relatively high activity and six were of relatively low activity. All nine types were found in the C line, whereas, all birds of the P line had only the most active type. Two alkaline phosphatase alleles (Akp-2B and Akp-2C) were segregating in the C line. Gene frequencies of alkaline phosphatase for the Akp-2B allele were 0.92 in the C line and 1.00 in the P line. Two albumin alleles (AlbQ1 and AlbQ2) were segregating in both populations. Gene frequencies for the AlbQ1 allele were 0.74 in the C line and 0.81 in the P line. Two red cell esterase-D alleles (Es-DF and Es-DS) were segregating in both populations. The gene frequency for the Es-DS allele (0.61) was higher than that of the Es-DF allele in the C line. In the P line the frequency of the Es-DF allele was higher than that of the Es-DS allele. Heterozygosities of the C and P lines were estimated as 0.2258 and 0.1560 respectively. The relative inbreeding coefficient of the P line, calculated from heterozygosities was 0.31.
比较了五个酶位点（淀粉酶、碱性磷酸酶、白蛋白、4周龄体重）的多态性与未选择的对照系（C）的多态性。C系中有三个位点和P系中有两个位点表现出多态性。血浆淀粉酶被分离成六条带，并根据这些带将酶谱分为九种表型。九种类型中的三种具有相对较高的活性，六种具有相对较低的活性。C系中发现了所有九种类型，而P系的所有鸟类仅具有最活跃的类型。两个碱性磷酸酶等位基因（Akp - 2B和Akp - 2C）在C系中分离。Akp - 2B等位基因的碱性磷酸酶基因频率在C系中为0.92，在P系中为1.00。两个白蛋白等位基因（AlbQ1和AlbQ2）在两个群体中都有分离。AlbQ1等位基因的基因频率在C系中为0.74，在P系中为0.81。两个红细胞酯酶 - D等位基因（Es - DF和Es - DS）在两个群体中都有分离。C系中Es - DS等位基因的基因频率（0.61）高于Es - DF等位基因。在P系中，Es - DF等位基因的频率高于Es - DS等位基因。C系和P系的杂合度分别估计为0.2258和0.1560。根据杂合度计算的P系的相对近交系数为0.31。
