A Prenyltransferase Gene Confirmed to Be a Carotenogenic CRTE Gene from Sweetpotato  

作　　者：Yufan Fu Lili Ma Fei Qiu Chunxian Yang Chunxia Hu Ying Zhao Zhi Lin Min Chen Zhihua Liao Xiaozhong Lan 

机构地区：[1]Key Laboratory of Eco-environments in Three Gorges(Ministry of Education),Chongqing Engineering Research Centre for Sweetpotato,School of Life Sciences,Southwest University [2]College of Pharmaceutical Sciences,Southwest University [3]Agricultural and Animal Husbandry College,Tibet University

出　　处：《Journal of Genetics and Genomics》2014年第11期613-616,共4页遗传学报（英文版）

基　　金：supported by the National High-tech R&D Program(863 Program)(Nos.2011AA10A206 and 2012AA101204-3);Program for New Century Excellent Talents in University(No.NCET-12-0930);Fundamental Research Funds for the Central Universities(No.XDJK2013A024);the earmarked fund for China Agriculture Research System (No.CARS-11-C-20)

摘　　要：Sweetpotato （Ipomoea batatas L. Lain.） ranks fifth among the most important food crops, after rice, wheat, maize and cas- sava, on a fresh-weight basis in developing countries （Scott and Maldonado, 1999）. Sweetpotato cultivars have white, yellow, purple or orange flesh, but only orange-fleshed sweetpotato cultivars are the rich sources of β-carotene, which is the precursor of vitamin A （Failla et al., 2009）. Accordingly, the orange-fleshed sweetpotato is the main source of 6-carotene for the people in underdeveloped coun- tries in Africa and Southeast Asia. Unfortunately, theβ-caro- tene content in most sweetpotato cultivars is rather low and insufficient in meeting the normal demand of human physi- ology （Liao et al., 2008）. Hence, developing sweetpotato cultivars rich inβ-carotene will be most desirable in crop development.Sweetpotato （Ipomoea batatas L. Lain.） ranks fifth among the most important food crops, after rice, wheat, maize and cas- sava, on a fresh-weight basis in developing countries （Scott and Maldonado, 1999）. Sweetpotato cultivars have white, yellow, purple or orange flesh, but only orange-fleshed sweetpotato cultivars are the rich sources of β-carotene, which is the precursor of vitamin A （Failla et al., 2009）. Accordingly, the orange-fleshed sweetpotato is the main source of 6-carotene for the people in underdeveloped coun- tries in Africa and Southeast Asia. Unfortunately, theβ-caro- tene content in most sweetpotato cultivars is rather low and insufficient in meeting the normal demand of human physi- ology （Liao et al., 2008）. Hence, developing sweetpotato cultivars rich inβ-carotene will be most desirable in crop development.

关 键 词：A Prenyltransferase Gene Confirmed to Be a Carotenogenic CRTE Gene from Sweetpotato ROOT 

分 类 号：S531[农业科学—作物学]