Pistachio DNA Map Could Lead to More Nutritious and Sustainable Nuts

Researchers from the University of California, Davis (UC Davis), have generated the most comprehensive genome sequence of the pistachio, allowing plant breeders to create better and more nutritious varieties. The researchers have also detailed how pistachio nuts develop, which will help farmers manage their crop more sustainably.

The UC Davis team sequenced the genome of the Kerman cultivar, the most common pistachio variety grown in California. The study identified four key growth stages of pistachio nut growth from flower to harvest, providing a complete physiological assessment, including shell hardening and kernel growth. The genomic sequence also includes precedent-setting information on different gene behavior in nuts over the growing season.

The new genetic map, which is more detailed and accurate could help in the development of pistachio trees that could thrive in higher temperatures. While pistachio trees are resilient to drought and salinity, they require cold winters to flower properly. Warm winters, combined with the dissipation of fogs that cool California's Central Valley, have caused significant losses for pistachio growers.

For more details, read the news article on the UC Davis website.