ISSN:
1615-6110
Keywords:
Compositae
;
Arnica montana
;
Allozymes
;
breeding system
;
clonal structure
;
conservation biology
;
fitness
;
genetic variation
;
pollination
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract In a medium-sized population ofArnica montana, a threatened species in The Netherlands, the breeding system, reproductive success and genetic clonal structure were studied. Pollination experiments suggested thatA. montana is largely self-incompatible. Inbreeding depression was observed for seedling weight but not for fruit weight and germination rate. Although genetic variation is rather low in this population, the data suggest an outcrossing mating system. Analysis of the genotype of all mapped rosettes in a plot of 100 m2 indicated that dense clusters often consist of identical genotypes, suggesting a clonal structure. Open clusters frequently contained several different genotypes. This may be caused by limited fruit dispersal, since seedlings were found mainly within or in the near surroundings of the clusters.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00989049
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