Dr Michelle Wirthensohn

Michelle Wirthensohn
Horticulture Australia Research Fellow
School of Agriculture, Food and Wine
Faculty of Sciences

Michelle Wirthensohn is the Program Leader of the National Almond Breeding Program based at the Waite Campus of the University of Adelaide.

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Dr Michelle Wirthensohn

Michelle Wirthensohn is the Program Leader of the National Almond Breeding Program based at the Waite Campus of the University of Adelaide.

Plant breeding and improvement for horticultural crops including Almonds, Eucalyptus, Banksia, and Olives.

Development, evaluation, and commercialisation of new improved almond cultivars.

Development of a genetic maps for almond.

Almond nutritive content analysis.

Biochemistry of plant oils and waxes. 

Reproductive biology including pollination, fruit set and development of ornamental and fruit and nut crops. 

Identification of horticultural crops by DNA fingerprinting.

Media: Almond breeding program on ABC Landline: 



Date Position Institution name
1998 Horticulture Innovation Australia Senior Research Fellow University of Australia


Date Institution name Country Title
University of Adelaide Australia PhD

Postgraduate Training

Date Title Institution Country
Graduate Certificate in Education University of Adelaide Australia


Agricultural Biotechnology, Agriculture, Horticultural Production, Plant Biology, Plant Developmental and Reproductive Biology


Date Citation
2016 Zhu,Y, Lim,YC, Wirthensohn,M, 2016, New almond selections with high tocopherol concentration, Acta Horticulturae, 1109, 1109, 165-168 10.17660/ActaHortic.2016.1109.27
2015 Fernández i Martí,A, Font i Forcada,C, Kamali,K, Rubio-Cabetas,MJ, Wirthensohn,M, Socias i Company,R, 2015, Molecular analyses of evolution and population structure in a worldwide almond [Prunus dulcis (Mill.) D.A. Webb syn. P. amygdalus Batsch] pool assessed by microsatellite markers, Genetic Resources and Crop Evolution, 62, 2, 205-219 10.1007/s10722-014-0146-x
2015 Zhu,Y, Wilkinson,K, Wirthensohn,M, 2015, Lipophilic antioxidant content of almonds (Prunus dulcis): a regional and varietal study, Journal of Food Composition and Analysis, 39, 120-127 10.1016/j.jfca.2014.12.003
2015 Zhu,Y, Taylor,C, Sommer,K, Wilkinson,K, Wirthensohn,M, 2015, Influence of deficit irrigation strategies on fatty acid and tocopherol concentration of almond (Prunus dulcis), Food Chemistry, 173, 821-826 10.1016/j.foodchem.2014.10.108
2014 Rahimi Eichi,V, Tyerman,S, Wirthensohn,M, 2014, Water relations and mesophyll anatomy in almond leaves, Journal of the American Society for Horticultural Science, 139, 6, 627-633
2014 Zhu,Y, Taylor,C, Sommer,K, Wilkinson,K, Wirthensohn,M, 2014, Effect of Deficit Irrigation on Almond Kernel Constituents, Acta Horticulturae, 1028, 221-223
2012 Marti,A, Wirthensohn,M, Alonso,J, Company,R, Hrmova,M, 2012, Molecular modeling of S-RNases involved in almond self-incompatibility, Frontiers in Plant Science, 3, 139, 1-4 10.3389/fpls.2012.00139
2011 Marti,A, Alonso,J, Company,R, Wirthensohn,M, Hrmova,M, 2011, Molecular modelling of RNases from almond involved in self-incompatibility, Proceedings of the Vth International Symposium on Pistachios and Almonds, 912, 641-643
2011 Picard,M, Wilkinson,K, Wirthensohn,M, 2011, An online learning space facilitating supervision pedagogies in science, South Affrican Journal of Higher Education, 25, 5, 954-971
2011 Yadollahi,A, Arzani,K, Ebadi,A, Wirthensohn,M, Karimi,S, 2011, The response of different almond genotypes to moderate and severe water stress in order to screen for drought tolerance, Scientia Horticulturae, 129, 3, 403-413 10.1016/j.scienta.2011.04.007
2010 Tavassolian,I, Rabiei,G, Gregory,D, Mnejja,M, Wirthensohn,M, Hunt,P, Gibson,J, Ford,C, Sedgley,M, Wu,S et al, 2010, Construction of an almond linkage map in an Australian population Nonpareil x Lauranne, BMC Genomics, 11, 1, 1-8 10.1186/1471-2164-11-551
2010 Picard,M, Wilkinson,K, Wirthensohn,M, 2010, Perceptions and expectations of authorship: Towards development of an e-learning tool facilitating discussion and reflection between post-graduate supervisors and candidates, Ergo, 1, 3, 22-33
2010 Arzani,K, Yadollahi,A, Ebadi,A, Wirthensohn,M, 2010, The relationship between bitterness and drought resistance of almond (Prunus dulcis Mill.), African Journal of Agricultural Research, 5, 9, 861-866 10.5897/AJAR09.215
2010 Wu,S, Franks,T, Hunt,P, Wirthensohn,M, Gibson,J, Sedgley,M, 2010, Discrimination of SNP genotypes associated with complex haplotypes by high resolution melting analysis in almond: implications for improved marker efficiencies, Molecular Breeding, 25, 2, 351-357 10.1007/s11032-009-9324-5
2009 Kolesik,P, Rice,A, Bellis,G, Wirthensohn,M, 2009, Procontarinia pustulata, a new gall midge species (Diptera: Cecidomyiidae) feeding on mango, Mangifera indica (Anarcadiaceae), in northern Australia and Papua New Guinea, Australian Journal of Entomology, 48, 4, 310-316 10.1111/j.1440-6055.2009.00721.x
2009 Wu,S, Tavassolian,I, Rabiei,G, Hunt,P, Wirthensohn,M, Gibson,J, Ford,C, Sedgley,M, 2009, Mapping SNP-anchored genes using high-resolution melting analysis in almond, Molecular Genetics and Genomics, 282, 3, 273-281 10.1007/s00438-009-0464-4
2008 Franks,T, Yadollahi,A, Wirthensohn,M, Guerin,J, Kaiser,B, Sedgley,M, Ford,C, 2008, A seed coat cyanohydrin glucosyltransferase is associated with bitterness in almond (Prunus dulcis) kernels (Functional Plant Biology 35, 3, (236-246)), Functional Plant Biology, 35, 4, 346- 10.1071/FP07275_ER
2008 Sorkheh,K, Malysheva-Otto,L, Wirthensohn,M, Tarkesh-Esfahani,S, Martinez-Gomez,P, 2008, Linkage disequilibrium, genetic association mapping and gene localization in crop plants, Genetics and Molecular Biology, 31, 4, 805-814 10.1590/S1415-47572008005000005
2008 Sorkheh,K, Vezaei,A, Wirthensohn,M, Martinez-Gomez,P, 2008, Pollen ultrastructure characterization in Californian and Australian almond cultivars, Journal American Pomological Society, 62, 4, 173-177
2008 Franks,T, Yadollahi,A, Wirthensohn,M, Guerin,J, Kaiser,B, Sedgley,M, Ford,C, 2008, A seed coat cyanohydrin glucosyltransferase is associated with bitterness in almond (Prunus dulcis) kernels, Functional Plant Biology, 35, 3, 236-246 10.1071/FP07275
2008 Wu,S, Wirthensohn,M, Hunt,P, Gibson,J, Sedgley,M, 2008, High Resolution Melting Analysis of Almond SNPs derived from ESTs, Theoretical and Applied Genetics, 118, 1, 1-14 10.1007/s00122-008-0870-8
2008 Wirthensohn,M, Chin,W, Franks,T, Baldock,G, Ford,C, Sedgley,M, 2008, Characterising the flavour phenotypes of almond (Prunus dulcis Mill.) kernels, Journal of Horticultural Science & Biotechnology, 83, 4, 462-468 10.1080/14620316.2008.11512407
2007 Kolesik,P, Woods,B, Crowhurst,M, Wirthensohn,M, 2007, Dasineura banksiae: a new species of gall midge (Diptera: Cecidomyiidae) feeding on Banksia coccinea (Proteaceae) in Australia, Australian Journal of Entomology, 46, 1, 40-44 10.1111/j.1440-6055.2007.00584.x
2006 Wirthensohn,M, Channuntapipat,C, Collins,G, Sedgley,M, 2006, Long-term cryopreservation of almond germplasm: an update, Nucis Newsletter, 25-27
2006 Wirthensohn,M, Collins,G, Channuntapipat,C, Sedgley,M, 2006, Update on long-term cryopreservation of almond germplasm, Acta Horticulturae, 726, 726, 127-132
2005 Wilkinson,J, Wirthensohn,M, 2005, In search of the perfect almond, Australian Nutgrower, 19, 3, 14-16
2005 Gregory,D, Sedgley,M, Wirthensohn,M, Arus,P, Kaiser,B, Collins,G, 2005, An integrated genetic linkage map for almond based on RAPD, ISSR, SSR and morphological markers, Acta Horticulturae, 694, 694, 67-72 10.17660/ActaHortic.2005.694.7
2004 Wirthensohn,M, Ramesh,S, Bertozzi,T, Alberts,E, Mekuria,G, Bennett,C, Collins,G, Sedgley,M, 2004, Virus screening for Australian almonds, Nucis Newsletter, 12, 15-16
2003 Mekuria,G, Ramesh,S, Alberts,E, Bertozzi,T, Wirthensohn,M, Collins,G, Sedgley,M, 2003, Comparison of ELISA and RT-PCR for the detection of Prunus necrotic ring spot virus and prune dwarf virus in almond (Prunus dulcis), Journal of Virological Methods, 114, 1, 65-69 10.1016/j.jviromet.2003.08.014
2003 Channuntapipat,C, Wirthensohn,M, Ramesh,S, Batlle,I, Arus,P, Sedgley,M, Collins,G, 2003, Identification of incompatibility genotypes in almond (Prunus dulcis Mill.) using specific primers based on the introns of the S-alleles, Plant Breeding, 122, 2, 164-168 10.1046/j.1439-0523.2003.00842.x
2002 Wirthensohn,M, Collins,G, Sedgley,M, 2002, Biotechnology for almond improvement in Australia, Nucis Newsletter, 15-16
2002 Wirthensohn,M, Sedgley,M, 2002, Almond breeding in Australia, Acta Horticulturae, 591, 591, 245-248 10.17660/ActaHortic.2002.591.35
2002 Guerin,J, Wu,S, Mekuria,G, Collins,G, Jones,G, Burr,M, Wirthensohn,M, Lavee,S, Sedgley,M, 2002, Olive cultivar improvement through selection and biotechnology, Advances in Horticultural Science, 16, 3-4, 198-203 10.1400/14119
2000 Scott,E, Sedgley,M, Wirthensohn,M, 2000, Plant Improvement and Disease Control - Almonds and Pistachios, Australian Nutgrower, 36-36
2000 Wirthensohn,M, Sedgley,M, 2000, Production, postharvest treatment and epicuticular wax structure of cut stems of Eucalyptus L'her foliage, Acta Horticulturae, 518, 8, 183-186 10.17660/ActaHortic.2000.518.24
2000 Wirthensohn,M, Sedgley,M, Jones,G, 2000, Epicuticular wax of juvenile Eucalyptus leaves and headspace analysis of leaf volatiles, Journal of Essential Oil Research, 12, 4, 401-411 10.1080/10412905.2000.9699550
1999 Wirthensohn,M, Collins,G, Jones,G, Sedgley,M, 1999, Variability in waxiness of Eucalyptus gunnii foliage for floriculture, Scientia Horticulturae, 82, 3-4, 279-288 10.1016/S0304-4238(99)00050-3
1998 Wirthensohn,M, Sedgley,M, 1998, Effect of pruning on regrowth of cut foliage stems of seventeen Eucalyptus species., Australian Journal of Experimental Agriculture, 38, 631-636
1996 Sedgley,M, Wirthensohn,M, Delaporte,K, 1996, Interspecific hybridization between Banksia hookeriana Meisn. and Banksia prionotes Lindl (Proteaceae), International Journal of Plant Sciences, 157, 5, 638-643 10.1086/297385
1996 Wirthensohn,M, Sedgley,M, 1996, Epicuticular wax structure and regeneration on developing juvenile Eucalyptus leaves, Australian Journal of Botany, 44, 691-704
1996 Wirthensohn,M, Sedgley,M, Ehmer,R, 1996, Production and postharvest treatment of cut stems of Eucalyptus L. Her. foliage, HortScience, 31, 6, 1007-1009


Date Citation
2006 2006, Proceedings of the IVth International Symposium on Pistachios and Almonds, International Society for Horticultural Science, Teheran, Iran

Conference Papers

Date Citation
2016 Delaporte,K, Collins,C, Wirthensohn,M, Rigden,J, 2016, Gaining a better understanding of ornamental eucalypts, 29th International Horticultural Congress on Horticulture - Sustaining Lives, Livelihoods and Landscapes (IHC) / International Symposium on Plant Breeding in Horticulture, Brisbane, AUSTRALIA 10.17660/ActaHortic.2016.1127.55
2014 Delaporte,K, Wirthensohn,M, Collins,C, 2014, Ornamental eucalyptus - Something for everyone, Meeting of the International-Plant-Propagators-Society, Bellefonte, PA 10.17660/ActaHortic.2014.1055.20
2011 Wirthensohn,M, Rahemi,M, Marti,A, 2011, Identification of self-incompatibility genotypes and DNA fingerprinting of some Australian almond cultivars, International Symposium on Pistachios and Almonds, Turkey
2010 Wirthensohn,M, Chin,W, Franks,T, Baldock,G, Ford,C, Sedgley,M, 2010, Investigation of flavour compounds from sweet, semi-bitter and bitter almonds kernels, Meeting of the Mediterranean Research Group for Almond and Pistachio (GREMPA), Athens, Greece
2006 Tavassolian,I, Sedgley,M, Kaiser,B, Wirthensohn,M, Ford,C, 2006, The construction of an almond linkage map using morphological and microsatellite markers on 'Nonpariel' x 'Lauranne' population., International Rosaceae Genomics Conference (Napier, New Zealand), Napier, New Zealand
2005 Wirthensohn,M, Channuntapipat,C, Ramesh,S, Collins,G, Sedgley,M, 2005, Determination of almond S-alleles using PCR primers designed from their introns, GREMPA Meeting on Almonds and Pistachios (Mirandela, Portugal), Mirandela, Portugal
2003 Mekuria,G, Ramesh,S, Alberts,E, Bertozzi,T, Wirthensohn,M, Collins,G, Sedgley,M, 2003, Comparison of ELISA and RT-PCR for the detection of PNRSV and PDV in Australian almond trees, GREMPA Meeting on Almonds and Pistachios (Mirandela, Portugal), Mirandela, Portugal

Conference Items

Date Citation
2000 Sedgley,M, Scott,E, Wirthensohn,M, 2000, Plant Improvement and Disease Control - Almonds and Pistachios, ANIC Conference 2000, Hahndorf, South Australia

Australian Almond Breeding Program is funded by Horticulture Innovation Australia Ltd using Almond industry levy funds matched with Commonwealth funds.

Editorial Boards

Date Role Editorial Board Name Country
2015 Associate Editor Tree Genetics and Genomes
Horticulture Australia Research Fellow
8313 0431
Plant Research Centre
Room Number
1 203
Org Unit
School of Agriculture, Food and Wine