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CAHNRS Department of Horticulture Genomics Lab

Genomics

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With the sequencing of several genomes, genomics research in non-model plant species has entered a new era. The US West Coast and the State of Washington produce some of the best fruit crops globally. Research in the program focuses on basic and applied aspects of the non-model specialty crops and bioenergy crops for their improvement.

The importance of being . . . green?

Development of a fruit is accompanied by changes in pigment and several secondary metabolic processes are in full swing at this transitional phase. Organelles, namely chloroplast and mitochondria, are the major centers of activity during this period. The basic research emphasis in the program is to understand plastid development and function in Rosaceae fruit and non-model crops. Mature fruit plastids have been found to be involved in the synthesis and storage of important phytonutrients such as carotenoids and tocopherols as well as precursors to volatiles that play a role in organoleptic properties as well as pre- and postharvest fruit quality. Evaluation of diverse plastidial functions in fruit and bioenergy crops is expected to provide clues about energy transduction that can enable understanding and alleviation of several physiological disorders as well as improvement of photosynthetic function for improved productivity.

The applied research in the program is centered on using physiology and phenomics-guided omics (genomics, transcriptomics, proteomics and metabolomics) investigations to identify genes underlying economically important traits in horticultural and specialty crops. Further, as candidate genes are discovered, reverse and forward genetics approaches are used to confirm gene-trait relationships. The information generated from this approach can be practically utilized in developing physiological and chemical-based solutions for existing varieties and new varieties can be developed through accelerated plant breeding and biotechnology approaches.

Plant Genomics Perspectives

The Pear Revival Journey

March 12, 2013

Soon after arriving at WSU in 2006, I embarked on a journey with a passionate set of individuals to revive an industry that has remained in suspended animation since the early 1900s. An email from a pear farmer in Yakima urged me to apply for funding to do pear research. That was my first introduction to a segment of the Pacific Northwest fruit industry that, while long an underdog relative to apples, has long sought to reinvent itself for the 21st century marketplace. Read more.

Issues Facing the Pacific Northwest Pear Industry

December 4, 2011

Watch video.

Innovation Crucial to Pear’s Future

September 2, 2011

This just in from The Packer: “Innovation crucial to pear’s future” In general, the pear industry is making money but is fragile because of a lack of innovation, said Amit Dhingra, a Washington State University horticultural genomicist. Read more.

 

Latest News

Dhingra honored for mentoring undergraduate researchers
Amit Dhingra, associate professor of genomics and biotechnology at Washington State University, has been honored by the Council on Undergraduate Research for his long-term commitment to mentoring undergraduate researchers. Dhingra received the CUR’s Biology Division Mid-Career Mentor Award from among nominees from about 750 participating universities. In the past 11 years, Dhingra has mentored nearly 100 undergraduates in 32 majors hailing from 16 U.S. universities. Many of those students, as evidenced by his Undergraduate Student Collective website, have gone on to science-related careers, won awards or otherwise found ways to make significant contributions to society. Read the rest of this article by Brian Clark here.
For the love of huckleberries
Starting in late summer, national forests in Northwestern states like Oregon, Washington, Montana, and Idaho fill with eager berry hunters hoping to find a cache of dark maroon huckleberries.  Read the rest of this NPR article here.
Customers are willing to pay a premium only on high quality, fresh sliced pears
A consumer willingness-to-pay study of packaged, fresh, sliced pears shows promise for another market option for the pear industry. Read the Good Fruit Grower article by Amit Dhingra and Karina Gallardo here.