其值在0～l 之间变化，也被称作“基因分化系数”（coefficient of gene differentiation）。GST也是Wright 指数即遗传固定指数（FST）的一个扩展形式。
双语例句
1
The gene heterozygosity was 0. 5520 on the locus of serum esterase. The genedifferentiationcoefficient among populations was very small (0. 33 %).
血清酯酶基因座的基因杂合度为0.5520，群体间基因分化系数很小(0.33%)。
2
Genetic differentiation among wild materials was obvious and genedifferentiationcoefficientof it was larger than of bred varieties and local materials.