Expression profiles of genes involved in fatty acid and lipid biosynthesis in developing seeds of Paeonia ostii

Li Chaoqiong; Hu Lizong; Que Beibei; Hu Yueran; Guo Yuanyuan; Zhang Minghui; Wang Zenan; Wang Xueqin; Liu Hongzhan; Wang Junsheng; Tian Huihui; Li Xiaoli

doi:10.1007/s13258-021-01102-2

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자료유형: 학술저널

저자정보: Li Chaoqiong (Zhoukou Normal University) Hu Lizong (Zhoukou Normal University) Que Beibei (Zhoukou Normal University) Hu Yueran (Zhoukou Normal University) Guo Yuanyuan (Zhoukou Normal University) Zhang Minghui (Zhoukou Normal University) Wang Zenan (Zhoukou Normal University) Wang Xueqin (Zhoukou Normal University) Liu Hongzhan (Zhoukou Normal University) Wang Junsheng (Zhoukou Normal University) Tian Huihui (Zhoukou Normal University) Li Xiaoli (Henan Key Laboratory of Crop Molecular Breeding and Bioreactor)

저널정보: 한국유전학회 Genes & Genomics Genes & Genomics Vol.43 No.8

발행연도: 2021.8

수록면: 885 - 896 (12page)

DOI: 10.1007/s13258-021-01102-2

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Background Paeonia ostii seeds were identifed as novel sources of edible plant oil with a high proportion of α-linolenic acid, a type of n-3 fatty acid with many health benefts. Due to the unreliability of seed oil content and quality, it is necessary to discover the mechanism underlying lipid biosynthesis in Paeonia ostii seeds. Objectives This study aimed to identify the key genes involved in lipid biosynthesis in Paeonia ostii seeds by analyzing the relationship among the seed characteristics and the expression patterns of lipid genes in Paeonia ostii during seed development. Methods Preliminary research on Paeonia ostii seed development was carried out from 10 days after pollination until maturity, focusing on phenology, oil content and lipid profles. In addition, we investigated the spatiotemporal expression of 36 lipid biosynthetic genes in Paeonia ostii by using quantitative real-time PCR. Results The results suggested that the development of Paeonia ostii seeds from pollination to maturity could be divided into three periods. The 36 lipid genes showed various spatiotemporal expression patterns and fve gene groups with distinct temporal patterns during seed development were identifed by clustering analysis of expression data. Furthermore, the relationships between gene expression and lipid/fatty acid accumulation and some candidate key lipid genes were discussed. Conclusions This study provided the global patterns of fatty acid and lipid biosynthesis-related gene expression, which are critical to understanding the molecular basis of lipid biosynthesis and identifying the lipid accumulation rate-limiting genes during seed development.

#Paeonia ostii #Seed development #Lipid accumulation #Fatty acid #Spatiotemporal expression pattern

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