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