ISSN:
1615-6110
Keywords:
Angiosperms
;
monocotyledons
;
Orchidaceae
;
Cephalanthera
;
Allozymes
;
electrophoresis
;
genetic variation
;
breeding type
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The genetic variation of seven enzymes for a total of nine loci was investigated in three species of terrestrial orchids of the genusCephalanthera:C. longifolia, C. rubra, andC. damasonium. These species are characterized by presenting different breeding types: outbreeding , outbreeding with facultative vegetative reproduction, and inbreeding, respectively. Electrophoretic evidence points to a difference in the behaviour of each of the three species which seems strictly related to the breeding type. On the basis of our resultsC. longifolia behaves as a normal outbreeder, whileC. rubra presents the influence of vegetative reproduction in some populations and not in others.C. damasonium shows a total lack of both among and within populations genetic variation, which is most probably due to the autogamic breeding type.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00937945
