Molecular confirmation of Potamogeton × bottnicus (P. pectinatus × P. vaginatus, Potamogetonaceae) in Britain |
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| Authors: | R. A. KING R. J. GORNALL C. D. PRESTON J. M. CROFT |
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| Affiliation: | Department of Biology, University of Leicester, Leicester, LE1 7RH;Centre for Ecology &Hydrology, Monks Wood, Abbots Ripton, Huntingdon, PE28 2LS |
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| Abstract: | Restriction fragment length polymorphisms in the internal transcribed spacer region of ribosomal DNA and in the chloroplast genome combine to confirm the existence of Potamogeton×bottnicus ( P. pectinatus × P. vaginatus ) in Britain. One of the parents, P. vaginatus , is not currently a member of the British flora, but did occur here in the past (the latest fossil fruits date from 30000 BP) and the hybrid may therefore owe its origin to ancient cross-pollination involving indigenous material or to more recent long-distance dispersal. |
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| Keywords: | cpDNA hybridization ITS long-distance dispersal |
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