Show simple item record Hagenblad, Jenny Leino, Matti W. Boström, Erik
dc.coverage.spatial Sweden
dc.coverage.temporal 19th - 20th century 2012-10-10T15:42:36Z 2012-10-10T15:42:36Z 2012-11-21
dc.identifier doi:10.5061/dryad.92p3p
dc.identifier.citation Hagenblad J, Leino MW, Boström E (2012) Twentieth-century changes in the genetic composition of Swedish field pea metapopulations. Heredity 110(4): 338–346.
dc.description Landrace crops are formed by local adaptation, genetic drift and gene flow through seed exchange. In reverse, the study of genetic structure between landrace populations can reveal the effects of these forces over time. We present here the analysis of genetic diversity in 40 Swedish field pea (Pisum sativum L.) populations, either available as historical seed samples from the late nineteenth century or as extant gene bank accessions assembled in the late twentieth century. The historical material shows constant high levels of within-population diversity, whereas the extant accessions show varying, and overall lower, levels of within-population diversity. Structure and principal component analysis cluster most accessions, both extant and historical, in groups after geographical origin. County-wise analyses of the accessions show that the genetic diversity of the historical accessions is largely overlapping. In contrast, most extant accessions show signs of genetic drift. They harbor a subset of the alleles found in the historical accessions and are more differentiated from each other. These results reflect how, historically present metapopulations have been preserved during the twentieth century, although as genetically isolated populations.
dc.relation.haspart doi:10.5061/dryad.92p3p/1
dc.relation.isreferencedby doi:10.1038/hdy.2012.93
dc.relation.isreferencedby PMID:23169556
dc.subject SSRs
dc.subject population structure
dc.subject landraces
dc.subject aged DNA
dc.subject seed exchange
dc.title Data from: Twentieth-century changes in the genetic composition of Swedish field pea metapopulations
dc.type Article
dwc.ScientificName Pisum sativum
prism.publicationName Heredity

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Title LeinoetalPisum
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Description Microsatellite data from genotypings of eight individuals each of in total 40 extant and historical accessions. Microsatellite markers are from Loridon et al 2005.
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