Back to Search Start Over

Distinction in morphology and esterase isozyme betweenEupatorium glehni (=E. chinense subsp.sachalinense) andE. chinense var.oppositifolium (compositae)

Authors :
Kawahara, Takayuki
Yahara, Tetsukazu
Watanabe, Kuniaki
Source :
Journal of Plant Research; June 1989, Vol. 102 Issue: 2 p165-179, 15p
Publication Year :
1989

Abstract

Abstract: The taxonomic status ofEupatorium chinese var.oppositofolium andE. glehni (=E. chinense subsp.sachalinense) inE. chinense complex semsu Kitamura has long been controversial. In this paper, the degree of divergence between diploids of these two taxa was examined by means of morphological studies including principal component analysis, the electrophoretic analysis of esterase isozyme variation and observations on habitats. The data obtained through the examinations indicate these two taxa are diverged enough to be recognized as distinct biological species. Since the polyploidE. chinense var.oppositifolium is more or less intermediate in morphology between the two diploid taxa, it is considered to have masked the distinction between the two diploid taxa. Also, electrophoretic evidence suggests that polyploidE. chinense var.oppositifolium is not a hybrid or hybrid derivative withE. glehni as a parental species. Possible origin of polyploidE. chinense varoppositifolium is also discussed.

Details

Language :
English
ISSN :
09189440 and 16180860
Volume :
102
Issue :
2
Database :
Supplemental Index
Journal :
Journal of Plant Research
Publication Type :
Periodical
Accession number :
ejs15020453
Full Text :
https://doi.org/10.1007/BF02488561