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Lack of detectable isozyme variability in British populations of Potamogeton epihydrus (Potamogetonaceae) |
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| Authors: | P.M Hollingsworth C.D Preston R.J Gornall |
| Affiliation: | a Royal Botanic Garden, Inverleith Row, Edinburgh EH3 5LR, UK b Institute of Terrestrial Ecology, Monks Wood, Abbots Ripton, Huntingdon PE17 2LS, UK c Department of Biology, University of Leicester, Leicester LE1 7RH, UK |
| Abstract: | Outside North America Potamogeton epihydrus Raf. is confined to two areas of Britain. An investigation of British material from apparently native sites in the Outer Hebrides and from a canal in northern England (where it is believed to be introduced) revealed only a single isozyme genotype. Ten putative loci were resolved. The IDH phenotype was uniform and three-banded, consistent with heterozygosity (possibly caused by a duplicated locus or preserved by clonal growth). All other enzyme loci were homozygous. |
| Keywords: | Genetic variability Founder effects Isozymes Conservation Potamogeton |
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