Genomics of Macadamia, a Recently Domesticated Tree Nut Crop

  • Cameron Peace
  • Ray Ming
  • Adele Schmidt
  • John Manners
  • Vasanthe Vithanage
Part of the Plant Genetics and Genomics: Crops and Models book series (PGG, volume 1)


The tree nut crop known as macadamia includes two cultivated species that readily hybridize. This Australian native from subtropical rainforests was domesticated recently, and cultivated trees are very few generations from their wild progenitors. A genomic understanding of the crop has the potential to deliver massive genetic improvements to a worldwide industry, and reveal the genetic changes that have occurred through the domestication process. The bulk of research efforts in this field have focused on the development of molecular marker technology and its various applications in assessing both cultivated and wild germplasm. Markers were also used as the basis of genetic linkage mapping for macadamia’s chromosomes, but regions controlling important traits have not yet been localized. Gene sequence information for macadamia is very limited, although two genes encoding proteins with antimicrobial properties have been described. Macadamia is the most economically valuable member of the ancient Proteaceae family, and has few cultivated relatives. This crop is the obvious target within the family for developing further genomics resources. Comparing the structure of the macadamia genome and its functional components with those of crops from other plant families, particularly nut, fruit, and tree species, should provide insights for understanding the evolution and genomic regulation of many important biological and agronomic traits.


Marker System STMS Marker Gene Sequence Information Leptosphaeria Maculans Natural Hybrid Zone 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Cameron Peace
    • 1
  • Ray Ming
  • Adele Schmidt
  • John Manners
  • Vasanthe Vithanage
  1. 1.Department of Horticulture and Landscape ArchitectureWashington State UniversityPullmanUSA

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