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Almond [Prunus dulcis (Miller) D.A. Webb] Breeding

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Advances in Plant Breeding Strategies: Nut and Beverage Crops

Abstract

Almond [Prunus dulcis (Miller) D.A. Webb] presents clear challenges within plant breeding given its plurennial woody character, long juvenile period and multiplication by grafting. These challenges make the improvement process generally long and tedious. Therefore, it is necessary to have the most current information on developing new cultivars that currently take 12 years. Additionally, the breeder has to consider diverse internal (genetic background of the existing material, actual and the new methodologies) and external factors (consumer preferences, biotic and abiotic factors) to ensure the success of a new cultivar. The degree of knowledge of these aspects determines the quality of the prediction and success in the design of new almond cultivars. Although the size of the breeding population can be unlimited, the management, phenotyping and selection of these seedlings are major limiting factors. High-throughput phenotyping methods, genomic (DNA), transcriptomic (RNA) and epigenetic studies can help to develop better selection strategies particularly useful to deal with complex target traits in tree crops such as almond, with a long juvenile periods and a high degree of heterozygosity. Recently, epigenetic marks have been developed associated to dormancy in flower buds.

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Acknowledgements

This study has been supported by the project Nut4Drought: Selection and characterization of drought resistant almond cultivars from the Mediterranean basin with high nutraceutical values, from an ERA-NET Action financed by the European Union under the Seventh Framework Program for research called ARIMNet2 (Coordination of Agricultural Research in the Mediterranean; 2014-2017; www.arimnet2.net).

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Correspondence to Pedro J. Martínez-García .

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Editors and Affiliations

Appendices

Appendices

1.1 Appendix I: Research Institutes Dedicated to Almond Breeding

Institution

Specialization

Contact information and website

Center for Edaphology and Applied Biology of the River Segura (CEBAS-CSIC), Murcia, Spain

Molecular Biology and Breeding

Dr. Federico Dicenta

Email: fdicenta@cebas.csic.es

ww.cebas.csic.es

Agrifood Research and Technology Centre of Aragón (CITA), Zaragoza, Spain

Molecular Biology and Breeding

Dr. Maria J Rubio

Email: mjrubioc@aragon.es

www.cita-aragon.es/

Institute of Agrifood Research and Technology (IRTA-Mas Bove), Reus, Spain

Breeding

Dr. Ignasi Batlle

Email: ignasi.batlle@irta.es

www.irta.cat/es/centre/irta-mas-bove/

University of California-Davis (UC Davis), California, USA

Breeding

Dr. Thomas M Gradziel

Email: tmgradziel@ucdavis.edu

www.ucdavis.edu

University of Adelaide, Australia

Molecular Biology and Breeding

Dr. Michelle Wirthensohn

Email: michelle.wirthensohn@adelaide.edu.au

www.adelaide.edu.au/

University of Bari, Italy

Breeding

Dr. Marino Palasciano

Email: marino.palasciano@uniba.it

www.uniba.it

Ecole National d’Agriculture Meknès, Morocco

Breeding

Dr. Ossama Kodad

Email: osama.kodad@yahoo.es

www.enameknes.ac.ma/

Olive Tree Institute, Tunisia

Breeding

Dr. Hassouna Gouta

Email: zallaouz@yahoo.fr

www.iosfax.agrinet.tn/

1.2 Appendix II: Almond Genetic Resources Available at Germplasm Banks

Country

Research center

Cultivation area

Accessions

Europe

France

INRA-Avignon

Avignon

180

Italy

University of Udine

Udine

65

Spain

CEBAS-CSIC

Murcia

70

CITA

Zaragoza

80

IRTA-Mas Bove

Reus

83

Asia

Iran

National Plant Gene Bank

Karaj

67

Syria

Centre for Studies of Arid Zones

Sednaya

130

Turkey

Ege University

Izmir

51

America

USA

USDA-UC Davis

Davis

165

Africa

Morocco

INRA-Rabat

Rabat

120

Oceania

Australia

University of Adelaide

Adelaide

45

  1. Source: http://www.fao.org/genetic-resources/

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Martínez-García, P.J. et al. (2019). Almond [Prunus dulcis (Miller) D.A. Webb] Breeding. In: Al-Khayri, J., Jain, S., Johnson, D. (eds) Advances in Plant Breeding Strategies: Nut and Beverage Crops. Springer, Cham. https://doi.org/10.1007/978-3-030-23112-5_1

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