Erhualian (Er) and Large White (LW) pigs differ significantly in growth performance. Previous studies of our laboratory found that this phenotypic divergence is largely reflected in differences of expression patterns of growth axis genes.

二花脸猪和大白猪的生长性能存在着明显差异，本实验室以往的研究表明，这种表现型的差异很大程度上反映在神经内分泌生长轴基因表达的差异上，生长快速的大白猪肝脏和肌肉GH受体的表达均显著高于生长较慢的二花脸猪。

According to phenotypic variation within populations, the 27 populations were divided into four groups, which the morphological diversity of groupⅠand groupⅡwas much greater than groupⅢand groupⅣ.2.

结合多重比较将27个居群按居群内表型变异程度高低分为Ⅰ、Ⅱ、Ⅲ和Ⅳ共四组，其中Ⅰ和Ⅱ组居群的表型多样性程度高于Ⅲ和Ⅳ组。