Genetic diversity of American hazelnut in the Upper Midwest, USA

Michael Demchik, Anthony Kern, Lois Braun, Jason Fischbach, Keith Turnquist

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

World hazelnut production is based on European hazelnut (Corylus avellana) and is limited by the narrow climatic requirements of this species. The cold hardiness and disease resistance of the American hazelnut (Corylus americana) offer opportunities to expand production to new areas including the Upper Midwest (USA). The American hazelnut is a phenotypically diverse species. This study used ten microsatellite marker loci to investigate genetic diversity in 1140 individuals sampled from 25 populations across Wisconsin, Iowa, Minnesota and North Dakota. Overall, the marker loci were highly polymorphic (Ho = 0.69, He = 0.78, PIC = 0.84) with 7–13 alleles per locus. There was very high genetic diversity within populations (90% of the total) and some tendency toward population differentiation. Mantel’s test showed that genetic distance among the populations was not correlated with geographic distance. We conclude that selection of individuals for use in breeding should be based primarily on phenotype (productivity, nut size, percent kernel, ease of harvest), with care to include representatives of genetically differentiated populations.

Original languageEnglish (US)
Pages (from-to)1507-1516
Number of pages10
JournalAgroforestry Systems
Volume92
Issue number6
DOIs
StatePublished - Dec 1 2018

Bibliographical note

Funding Information:
Research funded by United States Department of Agriculture-National Institute of Food and Agriculture award #2011-51181-30681, the Wisconsin Institute for Sustainable Technology and the University of Wisconsin UPDC committee. We thank numerous foresters and natural resource managers that provided site access and other assistance with this project. Work completed at University of Wisconsin Stevens Point and University of Minnesota campuses.

Funding Information:
Acknowledgements Research funded by United States Department of Agriculture-National Institute of Food and Agriculture award #2011-51181-30681, the Wisconsin Institute for Sustainable Technology and the University of Wisconsin UPDC committee. We thank numerous foresters and natural resource managers that provided site access and other assistance with this project.

Keywords

  • Filbert
  • Geographic genetics
  • Oilseed
  • Selection

Fingerprint Dive into the research topics of 'Genetic diversity of American hazelnut in the Upper Midwest, USA'. Together they form a unique fingerprint.

Cite this