等位同工酶(allozymes 或 allelic iso-zymes)是解释动植物组群内进化关系的有川工具。作为遗传标记,等位同工酶已成功地用于多种粮食作物及近缘植物的品种鉴定(Desbo-rough 等,1968;Salinas 等,1982)。我们在前一篇文章(1984)中已报导了马铃薯品种同工酶鉴定的初步结果。本文将报导25种马铃薯同工酶的特征,如等位同工酶数目及其相对迁移率、亚基数目、亚细胞位置及组织表达类型等。依据九种同工酶表达型的等级序 Allele isoenzymes (allozymes or allelic iso-zymes) are a tool to explain the evolutionary relationships within flora and fauna. As genetic markers, allelic isozymes have been successfully used for the identification of varieties of food crops and related plants (Desbo-rough et al., 1968; Salinas et al., 1982). We have reported the preliminary results of potato variety isozyme identification in the previous article (1984). This article reports the characteristics of 25 potato isozymes such as the number of isoenzymes and their relative mobility, the number of subunits, subcellular location and tissue expression types. Based on the nine isozyme expression of the order