title: Transcriptional profiling by DDRT-PCR analysis reveals gene expression during seed development in Carya cathayensis Sarg.
abstract: Hickory (Carya cathayensis Sarg.) seed has one of the highest oil content and is rich in polyunsaturated fatty acids (PUFAs), which kernel is helpful to human health, particularly to human brain function. A better elucidation of lipid accumulation mechanism would help to improve hickory production and seed quality. DDRT-PCR analysis was used to examine gene expression in hickory at thirteen time points during seed development process. A total of 67 unique genes involved in seed development were obtained, and those expression patterns were further confirmed by semi-quantitative RT-PCR and real time RT-PCR analysis. Of them, the genes with known functions were involved in signal transduction, amino acid metabolism, nuclear metabolism, fatty acid metabolism, protein metabolism, carbon metabolism, secondary metabolism, oxidation of fatty acids and stress response, suggesting that hickory underwent a complex metabolism process in seed development. Furthermore, 6 genes related to fatty acid synthesis were explored, and their functions in seed development process were further discussed. The data obtained here would provide the first clues for guiding further functional studies of fatty acid synthesis in hickory.
authors: Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin'an, Hangzhou 311300, PR China; Center for Cultivation of Subtropical Forest Resources (CCSFR), Zhejiang A & F University, Lin'an, Hangzhou 311300, PR China. Electronic address: hyj@zafu.edu.cn.
authors: You-Jun
authors: YJ
authors: Huang
authors: Jinhua Academy of Agricultural Sciences, Jinhua 321017, PR China. Electronic address: 53908499@qq.com.
authors: Qin
authors: Q
authors: Zhou
authors: Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin'an, Hangzhou 311300, PR China; Center for Cultivation of Subtropical Forest Resources (CCSFR), Zhejiang A & F University, Lin'an, Hangzhou 311300, PR China. Electronic address: huangjq@zafu.edu.cn.
authors: Jian-Qin
authors: JQ
authors: Huang
authors: Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin'an, Hangzhou 311300, PR China; Center for Cultivation of Subtropical Forest Resources (CCSFR), Zhejiang A & F University, Lin'an, Hangzhou 311300, PR China. Electronic address: yrzeng@zafu.edu.cn.
authors: Yan-Ru
authors: YR
authors: Zeng
authors: Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin'an, Hangzhou 311300, PR China; Center for Cultivation of Subtropical Forest Resources (CCSFR), Zhejiang A & F University, Lin'an, Hangzhou 311300, PR China. Electronic address: wzhj21@163.com.
authors: Zheng-Jia
authors: ZJ
authors: Wang
authors: Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin'an, Hangzhou 311300, PR China; Center for Cultivation of Subtropical Forest Resources (CCSFR), Zhejiang A & F University, Lin'an, Hangzhou 311300, PR China. Electronic address: qixiangzh@163.com.
authors: Qi-Xiang
authors: QX
authors: Zhang
authors: Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin'an, Hangzhou 311300, PR China. Electronic address: 542707236@qq.com.
authors: Yi-Hang
authors: YH
authors: Zhu
authors: Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin'an, Hangzhou 311300, PR China. Electronic address: 893194219@qq.com.
authors: Chen
authors: C
authors: Shen
authors: Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin'an, Hangzhou 311300, PR China; Center for Cultivation of Subtropical Forest Resources (CCSFR), Zhejiang A & F University, Lin'an, Hangzhou 311300, PR China. Electronic address: bszheng@zafu.edu.cn.
authors: Bing-Song
authors: BS
authors: Zheng
mesh_terms: D002244:Carbon / Q000378:metabolism; D031325:Carya / Q000235:genetics*; D018076:DNA, Complementary / Q000378:metabolism; D015536:Down-Regulation; D005227:Fatty Acids / Q000378:metabolism; D020869:Gene Expression Profiling; D018506:Gene Expression Regulation, Plant; D016133:Polymerase Chain Reaction / Q000379:methods*; D012333:RNA, Messenger / Q000378:metabolism; D018749:RNA, Plant / Q000235:genetics; D012639:Seeds / Q000235:genetics*; D014158:Transcription, Genetic
chemical_list: D018076:DNA, Complementary; D005227:Fatty Acids; D012333:RNA, Messenger; D018749:RNA, Plant; D002244:Carbon
keywords: Differential mRNA display; Fatty acid synthesis; Gene differential expression; Hickory