Journal
EUROPEAN JOURNAL OF FOREST RESEARCH
Volume 127, Issue 5, Pages 407-414Publisher
SPRINGER
DOI: 10.1007/s10342-008-0224-8
Keywords
crataegus; rosaceae; genetic differentiation; Northern Italy; oneseed hawthorn; RAPD markers
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Funding
- Ente Regionale per i Servizi all'Agricoltura e alle Foreste (ERSAF) of Regione Lombardia
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We have examined the pattern of random amplified polymorphic DNA (RAPD) variation among six populations of Crataegus monogyna from northern Italy, extending over an area of about 20,000 km(2). The aim was to evaluate local differentiation in relation to geographical distance. Of the 73 loci analysed, 65 were polymorphic, and there were no bands at complete fixation at the population level. The mean genetic diversity was 0.291, with the values for individual populations ranging between 0.252 and 0.333. According to the analysis of molecular variance most of the genetic variation was found within populations (about 80%), with a significant proportion being attributable to genetic differences between populations. No evidence for isolation by distance was found in the set of populations sampled. The efficacy of RAPD markers in analysing genetic variation, and the contribution of the results in terms of the preservation of biodiversity and defining the most appropriate strategies for collecting forest reproductive material, are discussed.
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