caa a22 4500 469097280 CHVBK 20180323133034.0 cr unu---uuuuu 170328e19920201xx s 000 0 eng 10.1007/BF00317228 doi (NATIONALLICENCE)springer-10.1007/BF00317228 Gene flow inferred from seed dispersal and pollinator behaviour compared to DNA analysis of restriction site variation in a patchy population of Lotus corniculatus L [Elektronische Daten] [I. Rasmussen, B. Brødsgaard] Summary: Gene flow was investigated in a natural population of Lotus corniculatus L. (Fabaceae) using a combination of pollen and seed dispersal studies and a recombinant DNA technique. The population is spatially heterogeneous and grows with Empetrum nigrum. L. corniculatus is pollinated by the pollen-collecting bumblebee Bombus lapidarius L. Most pollinator flights occurred within patches, as bees usually visit nearest-neighbour plants, show no marked directionality, and forage mostly within patches. Gene flow by seeds is also limited, reinforcing the pattern of gene flow within patches. However, 2.6% of pollinator flights are between patches and considerable pollen carryover also occurs. Thus, gene flow between patches is potentially sufficient to retard or prevent genetic differentiation in spite of the patchy sub-structuring of the population. A sub-set of the population was analysed for restriction fragment length polymorphisms (RFLPs) to document the actual gene flow pattern of the population. The DNA analysis revealed significant levels of genetic differentiation between the patches. The level of gene flow that can be inferred from the distribution of genetic variation is surprisingly restricted, as compared to gene flow inferred from pollinator behaviour, and emphasizes that stochastic processes like genetic drift and founder effects may have a strong impact on the prevailing genetic structure. Springer-Verlag, 1992 Lotus corniculatus L nationallicence Patchiness nationallicence Gene flow nationallicence Pollinator behaviour nationallicence Genetic variation nationallicence Rasmussen I. Institute of Plant Ecology, University of Copenhagen, Øster Farimagsgade 2D, DK-1353, Copenhagen K, Denmark aut Brødsgaard B. Institute for Biological Chemistry B, University of Copenhagen, Sølvgade 83, DK-1307, Copenhagen K, Denmark aut Oecologia Springer-Verlag 89/2(1992-02-01), 277-283 0029-8549 89:2<277 1992 89 442 https://doi.org/10.1007/BF00317228 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00317228 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rasmussen I. Institute of Plant Ecology, University of Copenhagen, Øster Farimagsgade 2D, DK-1353, Copenhagen K, Denmark aut NATIONALLICENCE 700 1- Brødsgaard B. Institute for Biological Chemistry B, University of Copenhagen, Sølvgade 83, DK-1307, Copenhagen K, Denmark aut NATIONALLICENCE 773 0- Oecologia Springer-Verlag 89/2(1992-02-01), 277-283 0029-8549 89:2<277 1992 89 442 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer