Abstract
Hazelnut (Corylus avellana L.) is a traditional nut crop in southern Europe. Germplasm exploration conducted on-farm in five countries (Portugal, Spain, Italy, Slovenia, and Greece) identified 77 landraces. The present work describes phenotypic variation in nut and husk traits and investigates genetic relationships using ten simple sequence repeat (SSR) markers among these landraces, 57 well-known references cultivars, and 19 wild accessions. Among the 77 landraces, 42 had unique fingerprints while 35 showed a SSR profile identical to a known cultivar. Among the 42 unique landraces, morphological observations revealed high phenotypic diversity, and some had characteristics appreciated by the market such as nut round and caliber. Analysis of genetic relationships and population structure allowed investigation of the origin and spread of the cultivated germplasm in southern Europe. Our results indicate the existence of three primary centers of diversity in the Mediterranean basin: northwestern Spain (Tarragona) and southern Italy (Campania) in the West and Black Sea (Turkey) in the East. Moreover, the data suggest the existence of secondary gene pools in the Iberian (Asturias) and Italian (Liguria and Latium) Peninsulas, where local varieties were recently domesticated from wild forms and/or from introduced ancient domesticated varieties.
Similar content being viewed by others
References
Alberghina O (1982) Indagine sulla corilicoltura siciliana. Frutticoltura 2:27–30
Bacchetta L, Di Giovanni B, Avanzato D, Botta R, Bellon B, Boccacci P, Drogoudi P, Metzidakis I, Rovira M, Sarraquigne JP, Silva AP, Solar A, Spera D (2011) The AGRI GEN RES ‘SAFENUT’ action: a European strategy for the preservation and utilization of hazelnut and almond genetic resources. Nucis-Newsletter 15:30–33
Bassil NV, Botta R, Mehlenbacher SA (2005a) Microsatellite markers in the hazelnut: isolation, characterization and cross-species amplification in Corylus. J Am Soc Hort Sci 130:543–549
Bassil NV, Botta R, Mehlenbacher SA (2005b) Additional microsatellites of the European hazelnut. Acta Hort 686:105–110
Bioversity, FAO, CIHEAM (2008) Descriptors for hazelnut (Corylus avellana L.). Bioversity International, Rome, Italy; Food and Agriculture Organization of the United Nations, Rome, Italy; International Centre for Advanced Mediterranean Agronomic Studies, Zaragoza, Spain
Boccacci P, Botta R (2009) Investigating the origin of hazelnut (Corylus avellana L.) cultivars using chloroplast microsatellites. Genet Resour Crop Evol 56:851–859
Boccacci P, Botta R (2010) Microsatellite variability and genetic structure in hazelnut (Corylus avellana L.) cultivars from different growing regions. Sci Hortic 124:128–133
Boccacci P, Akkak A, Bassil NV, Mehlenbacher SA, Botta R (2005) Characterization and evaluation of microsatellite loci in European hazelnut (Corylus avellana L.) and their transferability to other Corylus species. Mol Ecol Notes 5:934–937
Boccacci P, Akkak A, Botta R (2006) DNA-typing and genetic relationships among European hazelnut (Corylus avellana L.) cultivars using microsatellite markers. Genome 49:598–611
Boccacci P, Rovira M, Botta R (2008) Genetic diversity of hazelnut (Corylus avellana L.) germplasm in northeastern Spain. HortSci 43:667–672
Breton C, Pinatel C, Médail F, Bonhomme F, Bervillé A (2008) Comparison between classical and Bayesian methods to investigate the history of olive cultivars using SSR-polymorphisms. Plant Sci 175:524–532
Campa A, Trabanco E, Pérez-Vega E, Rovira M, Ferreira JJ (2011) Genetic relationship between cultivated and wild hazelnuts (Corylus avellana L.) collected in northern Spain. Plant Breed 130:360–366
CBD (1992) Convention on biological diversity: text and annexes. Secretariat of the Convention on Biological Diversity, Montreal
CBD (2002) Global strategy for plant conservation. Secretariat of the Convention on Biological Diversity, Montreal. Available from http://www.biodiv.org/decisions/?lg=0&dec=VI/9. Accessed 29 Oct 2012
Earl DA, vonHoldt BM (2012) STRUCTURE HARVESTER: a website and program for visualizing STRUCTURE output and implementing the Evanno method. Conservation Genet Resour 4:359–361
Evanno G, Regnaut S, Goudet J (2005) Detecting the number of clusters of individuals using the software STRUCTURE: a simulation study. Mol Ecol 14:2611–2620
FAO (2001) International treaty on plant genetic resources for food and agriculture. Available from: http://www.planttreaty.org/content/texts-treaty-official-versions. Accessed 29 Oct 2012
FAOstat (2011) Agriculture data. Available from: http://faostat.fao.org/site/408/default.aspx. Accessed 31 May 2011
Ferreira JJ, Garcia-González C, Tous J, Rovira M (2010) Genetic diversity revealed by morphological traits and ISSR markers in hazelnut germplasm from northern Spain. Plant Breed 129:435–441
Garrone W, Vacchetti M (1994) Hazelnut quality in relation with the requirements of confectionary industry. Acta Hort 351:641–648
Gökirmak T, Mehlenbacher SA, Bassil NV (2009) Characterization of European hazelnut (Corylus avellana L.) cultivars using SSR markers. Genet Resour Crop Evol 56:147–172
Goudet J (1995) FSTAT (version 1.2): a computer program to calculate F-statistics. J Hered 86:485–486
Gürcan K, Mehlenbacher SA (2010a) Transferability of microsatellite markers in the Betulaceae. J Amer Soc Hort Sci 135:159–173
Gürcan K, Mehlenbacher SA (2010b) Development of microsatellite marker loci for European hazelnut (Corylus avellana L.) from ISSR fragments. Mol Breed 26:551–559
Gürcan K, Mehlenbacher SA, Erdoğan V (2010a) Genetic diversity in hazelnut (Corylus avellana L.) cultivars from Black Sea countries assessed using SSR markers. Plant Breed 129:422–434
Gürcan K, Mehlenbacher SA, Botta R, Boccacci P (2010b) Development, characterization, segregation, and mapping of microsatellite markers for European hazelnut (Corylus avellana L.) from enriched genomic libraries and usefulness in genetic diversity studies. Tree Genetics & Genomes 6:513–531
Hammer Ø, Harper DAT, Ryan PD (2001) PAST: paleontological statistics software package for education and data analysis. Palaeontol Electron 4(1), 9pp
Jarvis DI, Myer L, Klemick H, Guarino L, Smale M, Brown AHD, Sadiki M, Sthapit B, Hodgkin T (2000) A training guide for in situ conservation on-farm, Version 1. IPGRI, Rome
Mehlenbacher SA, Miller AN (1989) ’Barcelona’ hazelnut. Fruit Varieties J 43:90–95
Mehlenbacher SA, Brown RN, Nouhra EN, Gökirmak T, Bassil NV, Kubisiak TL (2006) A genetic linkage map for hazelnut (Corylus avellana L.) based on RAPD and SSR markers. Genome 49:122–133
Minch E (1997) MICROSAT. Available from: http://genetics.stanford.edu/hpgl/projects/microsat/. Accessed 29 Oct 2012
Nei M (1978) Estimation of average heterozygosity and genetic distance from a small number of individuals. Genetics 89:583–590
Palmé AE, Vendramin GG (2002) Chloroplast DNA variation, postglacial recolonization and hybridization in hazel, Corylus avellana. Mol Ecol 11:1769–1779
Peakall R, Smouse PE (2006) GENALEX 6: genetic analysis in Excel. Population genetic software for teaching and research. Mol Ecol Notes 6:288–295
Piccirillo P, Petriccione M, Clasadonte A, Rosato T, De Luca A (2007) Problematiche e prospettive di rilancio per la corilicoltura calabrese. Frutticoltura 11:62–66
Polegri L, Negri V (2010) Molecular markers for promoting agro-biodiversity conservation: a case study from Italy. How cowpea landraces were saved from extinction. Genet Resour Crop Evol 57:867–880
Pritchard JK, Stephens M, Donnelly P (2000) Inference of population structure using multilocus genotype data. Genetics 155:945–959
Rosengarten F (1984) The book of edible nuts. Walker, New York
Rovira M, Avanzato D, Bachetta L, Botta R, Drogoudi P, Ferreira JJ, Sarraquigne JP, Silva AP, Solar A (2011) European Corylus avellana germplasm collections. Acta Hort 918:871–876
Sathuvalli VR, Chen H, Mehlenbacher SA, Smith DC (2011) DNA markers linked to eastern filbert blight resistance in “Ratoli” hazelnut (Corylus avellana L.). Tree Genetics & Genomes 7:337–345
Shannon CE, Weaver W (1949) The mathematical theory of communication. University of Illinois Press, Urbana
Slatkin M, Barton NH (1989) A comparison of three indirect methods for estimating average levels of gene flow. Evolution 43:1349–1368
Solar A, Štampar F (2011) Characterization of selected hazelnut cultivars: phenology, growing and yielding capacity, market quality and nutraceutical value. Jour Sci Food Agric 91(7):1205–1212
Tamura K, Peterson D, Peterson N, Stecher G, Nei M, Kumar S (2011) MEGA5: Molecular Evolutionary Genetics Analysis using maximum likelihood, evolutionary distance, and maximum parsimony methods. Mol Biol Evol 28:2731–2739
Thomas MR, Matsumoto S, Cain P, Scott NS (1993) Repetitive DNA of grapevine: classes present and sequences suitable for cultivar identification. Theor Appl Genet 86:173–180
Thompson MM, Romisondo P, Germain E, Vidal-Barraquer R, Tasias Valls J (1978) An evaluation system for filberts (Corylus avellana L.). HortSci 13(5):514–517
Thompson MM, Lagerstedt HB, Mehlenbacher SA (1996) Hazelnuts. In: Janick J, Moore JN (eds) Fruit breeding: nuts, vol 3. Wiley, New York, pp 125–184
UPOV (1979) Guidelines for the conduct of test for distinctness, homogeneity and stability (hazelnut). UPOV, Geneva. TG/71/3
Wagner HW, Sefc KM (1999) IDENTITY 1.0. Available from: http://www.uni-graz.at/~sefck/. Accessed 29 Oct 2012
Weir BS, Cockerham CC (1984) Estimating F-statistics for the analysis of population structure. Evolution 38:1358–1370
Yeh FY, Boyle R, Ye T, Mao Z (1997) POPGENE, the user-friendly shareware for population genetic analysis, version 1.31. Molecular Biology and Biotechnology Centre, University of Alberta, Alberta
Acknowledgments
Authors thank Prof. Shawn A. Mehlenbacher (Oregon State University, Corvallis, OR, USA) for reviewing the manuscript. The research was funded by the European Union project SAFENUT (AGRI GEN RES 068).
Data Archiving Statement
Following the standard Tree Genetics and Genomes policy, we declare that the list of accessions surveyed (Table 1), phenotype data (Table 3), and SSR data (Supplementary Table 1) were deposited in the Dryad Repository (http://datadryad.org/).
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by E. Dirlewanger
Electronic supplementary material
Below is the link to the electronic supplementary material.
ESM 1
(DOC 279 kb)
Rights and permissions
About this article
Cite this article
Boccacci, P., Aramini, M., Valentini, N. et al. Molecular and morphological diversity of on-farm hazelnut (Corylus avellana L.) landraces from southern Europe and their role in the origin and diffusion of cultivated germplasm. Tree Genetics & Genomes 9, 1465–1480 (2013). https://doi.org/10.1007/s11295-013-0651-7
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11295-013-0651-7