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Transcriptome analysis of oil palm pistil during pollination and fertilization to unravel the role of phytohormone biosynthesis and signaling genes

文献类型： 外文期刊

作者： Yang, Mengdi 1 ; Yarra, Rajesh 1 ; Zhang, Ruining 1 ; Zhou, Lixia 1 ; Jin, Longfei 1 ; Martin, Jerome Jeyakumar John 1 ; Cao, Hongxing 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Coconut Res Inst, Wenchang 571339, Hainan, Peoples R China

2.Hainan Key Lab Trop Oil Crops Biol, Wenchang 571339, Hainan, Peoples R China

3.Hainan Univ, Coll Trop Crops, Haikou 570228, Hainan, Peoples R China

4.Hainan Univ, Coll Hort, Haikou 570228, Hainan, Peoples R China

关键词： Oil palm; Phytohormone; Pollination; Signal transduction; Transcriptome

期刊名称：FUNCTIONAL & INTEGRATIVE GENOMICS （ 影响因子：3.674； 五年影响因子：3.711 ）

ISSN： 1438-793X

年卷期： 2022 年 22 卷 2 期

页码：

收录情况： SCI

摘要： Phytohormones play an important role in the pollination and fertilization of crops, but the regulatory mechanisms of oil palm pollination and fertilization are unclear. The purpose of this study is to explore the hormonal changes of oil palm pistils during flowering. We used RNA sequencing to evaluate differentially expressed genes (DEGs) in oil palm pistils at the pollination and non-pollination stages. In this study, we found that the hormone contents of oil palm pistil changed drastically after pollination. The transcriptome of the oil palm pistil without pollination and at 2 h, 4 h, 12 h, 24 h, and 48 h after pollination was comprehensively analyzed, and a large number of differential genes and metabolic pathways were explored. Based on the transcriptome data, it could be recognized that the changes of indoleacetic acid (IAA), zeatin riboside (ZR), and abscisic acid (ABA) during pollination were consistent with the changes in the corresponding gene transcripts. Differentially expressed genes during pollination and fertilization of oil palm were mainly related to energy metabolism and hormone signal transduction. It provides new insights to elucidate the interaction and regulation mechanisms of plant hormones before and after oil palm pollination, providing a theoretical basis and reference for the research on sexual reproduction of oil palm.

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