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ARS Home » Northeast Area » Ithaca, New York » Robert W. Holley Center for Agriculture & Health » Plant, Soil and Nutrition Research » Research » Research Project #436318

Research Project: Uncovering Novel Genes and Mechanisms Underlying Carotenoid Accumulation in Melon Fruit

Location: Plant, Soil and Nutrition Research

Project Number: 8062-21000-047-13-I
Project Type: Interagency Reimbursable Agreement

Start Date: Apr 1, 2019
End Date: Mar 31, 2022

Objective:
Carotenoids are vital to human nutrition and health. Identification of the genetic elements responsible for carotenoid accumulation and a thorough understanding of their control mechanisms are critical for development of carotenoid-enriched food crops. However, despite of the significant progress in carotenoid research, the regulatory genes and the overall control mechanisms remain largely unknown, which limit our ability to improve carotenoid content in agriculture products. The objectives of the proposed research are: 1) to clone the melon CmOr gene repressor via QTL-Seq and fine QTL mapping; 2) to functionally characterize it and elucidate its regulatory mechanism in controlling carotenoid accumulation in melon fruit; and 3) to identify additional new genes in mediating carotenoid metabolism in plants.

Approach:
To accomplish the specific objectives, a combination of genetic, molecular and biochemical approaches will be employed to identify the CmOr repressor gene(s) and elucidate its control mechanism in regulating carotenoid accumulation in melon fruit.