作 者 ：1Jiang Hong, 2Wang Ling
期 刊 ：植物分类学报 1986年 4期
Keywords:Cupressus Linn, Isoenzyme zymogram, consanguinity,
Abstract:
By means of disc polyacrylamide gel electrophoresis, peroxidase isoenzymes
of 9 species of Cupressus Linn, were analysed. The interspecific zymogramatic dif-
ferences are obvious. Each species possesses its specific zymogram, distinguishable form
the others. According to the zymogramatic similarity among these species calculated
with the method of polar ordination, they may be grouped into 5 groups, which may be
grouped in turn into two categories. C. gigantea Cheng et L. K. Fu, C. torulosa D.
Don, C. duclouxiana Hichel, C. chengiana S. Y. Hu, and C. jiangeensis N. Chao. fall
into one category. The second category contains C. sempervirens, C. arizonica Greene,
C. lusitanica and C. funebris Endl. The experimental result about peroxidase com-
firms the interspecific relationships of Cupressus suggested by the previous works. A
positive relation is found between the peroxidases isoenzyme zymogramatic similar de-
gree and the geographical vicarism of the related species, which has been used for ana-
lysing the regularity of phytogeographical vicarism. The mean zymogram distance of
Cupressus Linn. among species is 0.75, from which it is inferred that the divergency
took place the Jurassic. The advantage of polar ordination method in the study of iso-
enzyme zymogram is discussed.