Genetic variation in Arabis petraea, a disjunct species in northern Europe

• Published in: Ecography
• Main Authors: Jonsell, Bengt, Kustås, Kerstin, Nordal, Inger
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 1995
• Subjects: Ecology, Evolution, Behavior and Systematics; Norway; Iceland
• Online Access: http://dx.doi.org/10.1111/j.1600-0587.1995.tb00135.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0587.1995.tb00135.x; https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0587.1995.tb00135.x

Variation at 7 isoenzyme loci was studied m 15 populations (6 from Iceland, 4 from W Norway, 4 from central Sweden at the Bothnian Gulf, and 1 from Russian Karelia) Heterozygosity within populations was found to be remarkably high compared with taxa with similar reproductive systems and phytogeographical histories Genetic distances calculated from isoenzyme data showed a close connection between the Norwegian and Swedish populations, indicating a western rather than an eastern immigration route for the isolated Swedish population Leaf shape variation displayed a large scale geographical pattern with strong differences between regions and low variation within populations