ISSN:
1615-6110
Keywords:
Orchidaceae
;
Cephalanthera
;
Epipactis
;
Limodorum
;
Chromosome banding
;
karyotype analysis
;
karyotype evolution
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Karyotype attributes and heterochromatin distribution were used to characterize fourteen taxa of the subtribeLimodorinae (Orchidaceae). The karyotypes were established using morphometrical parameters following Feulgen staining and C-banding. No significant differences in heterochromatin content were found between specimens collected from various sites. Four species of theEpipactis helleborine group possess some chromosome pairs with quite similar heterochromatin patterns; some differences were found inE. distans with respect to other species of this group.Epipactis palustris differed significantly from otherEpipactis species in its different karyotype and its numerous terminal C-bands. The largest differences from the other genera were shown inLimodorum as far as karyomorphology and heterochromatin patterns were concerned. C-band distribution indicated similarity among non-homologous chromosomes, supporting a possible palaeo-polyploid origin for theCephalanthera andEpipactis karyotypes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00984927
