Tissue-specific transcriptomics reveals a central role of CcNST1 in regulating the fruit lignification pattern in Camellia chekiangoleosa,a woody oil-crop  

作　　者：Chao Yan Ziyan Nie Zhikang Hu Hu Huang Xianjin Ma Sijia Li Jiyuan Li Xiaohua Yao Hengfu Yin 

机构地区：[1]State Key Laboratory of Tree Genetics and Breeding,Research Institute of Subtropical Forestry,Chinese Academy of Forestry,Hangzhou,Zhejiang 311400,China [2]Key Laboratory of Forest Genetics and Breeding,Research Institute of Subtropical Forestry,Chinese Academy of Forestry,Hangzhou,Zhejiang 311400,China

出　　处：《Forestry Research》2022年第1期89-98,共10页林学研究（英文）

基　　金：supported by Nonprofit Research Projects(CAFYBB2021QD001)of Chinese Academy of Forestry;National Key R&D Program of China(2019YFD1001602)。

摘　　要：Fruit lignification is of significant economic importance because it affects the quality of fruit and the production of seed oil.The specified lignification pattern in Camellia chekiangoleosa fruits plays critical roles in its seed oil yield,but little is known about how this lignification process is regulated.Here,we report on a comprehensive tissue-specific transcriptomics analysis conducted for C.chekiangoleosa fruit.By mining the differentially expressed genes,we found that lignin biosynthesis and transcriptional regulation pathways were significantly enriched in the lignified tissues.The homolog of NST-like transcription factor,CcNST1,was highly expressed in lignified seed coat and endocarp tissues;transgenic analyses of CcNST1 in Arabidopsis and hybrid poplar revealed the enhanced lignification levels of various tissues.Gene expression analysis of the transgenic lines uncovered potential downstream genes involved in the regulation of lignin biosynthesis.This work provides a valuable gene expression resource and identified the pivotal role of CcNST1 in regulating the lignin biosynthesis underlying fruit lignification.

关 键 词：PATTERN specified specific 

分 类 号：S791[农业科学—林木遗传育种]