Functional Components in Sweetpotato and Their Genetic Improvement

Overview

Journal Breed Sci

Date 2017 May 4

PMID 28465668

Citations 18

Authors

Masaru Tanaka

Koji Ishiguro

Tomoyuki Oki

Shigenori Okuno

Affiliations

Soon will be listed here.

Abstract

In addition to the nutritionally important components such as starches, vitamins and minerals, storage roots and leaves of sweetpotato () contains several components with health-promoting functions. Of these, the functionalities of carotenoids, anthocyanins and caffeoylquinic acids have been well established by and experiments. Several sweetpotato cultivars containing high levels of these components have been developed in Japan; e.g., 'Ayamurasaki', which has high amounts of anthocyanin in its storage roots. To further improve the content and also to change the composition of these functional components, the identification of the genes involved in their biosynthesis and genetic modification of the biosynthetic pathway has been attempted. In this review, we summarize the present status of the research and breeding for these functional components, and we discuss the future prospects for improving sweetpotato functionality.

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