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LOW GENETIC-VARIATION IN SWEDISH POPULATIONS OF THE RARE SPECIES VICIA-PISIFORMIS (FABACEAE) REVEALED WITH RFLP (RDNA) AND RAPD
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC).ORCID iD: 0000-0002-2147-7428
1994 (English)In: Plant Systematics and Evolution, ISSN 0378-2697, E-ISSN 1615-6110, Vol. 189, no 3-4, 133-148 p.Article in journal (Refereed) Published
Abstract [en]

Nine Swedish populations, 1-5 individuals/population, and one cultivated individual of the rare species Vicia pisiformis were investigated for genetic variation. In hybridizations with two rDNA probes using 8 restriction enzymes, only two individuals belonging to one population were polymorphic. A map of the rDNA gene cluster was constructed for four of the restriction enzymes used. Two of the polymorphic sites were mapped and were found to be located outside regions coding for rRNA, presumably caused by single point mutations or small deletions. The repeat length of the rDNA region was c. 10,000 bp, which corresponds well with the size found for other species belonging to Fabaceae. No length polymorphism was found in the intergenic spacer, contrary to the situation found for most other plant species investigated for rDNA variation. The haplotype diversity for the species (Hsp Shannon) was very low (0.055). Within-population values (Hpop) was 0 for all populations except the variable one, which had 0.301. PCR amplification with 6 random primers also revealed very low levels of genetic diversity. A polymorphism was observed in a limited number of individuals for four populations. Hsp was 0.065 and HpopBAR was 0.050. The average D value (Wetton) for the PCR haplotypes was 0.99.

Place, publisher, year, edition, pages
1994. Vol. 189, no 3-4, 133-148 p.
Keyword [en]
FABACEAE, VICIA-PISIFORMIS, RDNA, RFLP, PCR, RAPD, RANDOM PRIMING, GENETIC VARIATION, RARE SPECIES, THREATENED SPECIES
Identifiers
URN: urn:nbn:se:umu:diva-44725ISI: A1994NB92200001OAI: oai:DiVA.org:umu-44725DiVA: diva2:426375
Available from: 2011-06-23 Created: 2011-06-09 Last updated: 2017-12-11

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CiteExportLink to record
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