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SDG2通过SWR1-ERECTA信号通路调控拟南芥花序结构。

SDG2 regulates Arabidopsis inflorescence architecture through SWR1-ERECTA signaling pathway.

作者信息

Liu Liping, Chai Mengnan, Huang Youmei, Qi Jingang, Zhu Wenhui, Xi Xinpeng, Chen Fangqian, Qin Yuan, Cai Hanyang

机构信息

College of Life Science, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China.

State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi Key Lab of Sugarcane Biology, College of Agriculture, Guangxi University, Nanning 530004, China.

出版信息

iScience. 2021 Oct 12;24(11):103236. doi: 10.1016/j.isci.2021.103236. eCollection 2021 Nov 19.

DOI:10.1016/j.isci.2021.103236
PMID:34746701
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8551540/
Abstract

Inflorescence architecture is diverse in flowering plants, and two determinants of inflorescence architecture are the inflorescence meristem and pedicel length. Although the ERECTA (ER) signaling pathway, in coordination with the SWR1 chromatin remodeling complex, regulates inflorescence architecture with subsequent effects on pedicel elongation, the mechanism underlying signaling pathway regulation of inflorescence architecture remains unclear. This study determined that SDG2 genetically interacts with the signaling pathways in regulating inflorescence architecture. Transcriptome results showed that auxin might potentially influence inflorescence growth mediated by SDG2 and pathways. SWR1 and ER signaling are required to enrich H2A.Z histone variant and SDG2 regulated SDG2-mediated H3K4me3 histone modification at auxin-related genes and H2A.Z histone variant enrichment. Our study shows how the regulation of inflorescence architecture is mediated by SDG2 and SWR1-ER, which affects auxin hormone signaling pathways.

摘要

花序结构在开花植物中多种多样，花序结构的两个决定因素是花序分生组织和花梗长度。尽管ERECTA（ER）信号通路与SWR1染色质重塑复合体协同作用，调节花序结构并随后影响花梗伸长，但花序结构信号通路调控的潜在机制仍不清楚。本研究确定SDG2在调控花序结构方面与该信号通路存在遗传相互作用。转录组结果表明，生长素可能潜在地影响由SDG2和该通路介导的花序生长。SWR1和ER信号是富集H2A.Z组蛋白变体所必需的，并且SDG2在生长素相关基因处调节SDG2介导的H3K4me3组蛋白修饰以及H2A.Z组蛋白变体富集。我们的研究表明了花序结构的调控是如何由SDG2和SWR1-ER介导的，这影响了生长素激素信号通路。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/495657a0955f/gr11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/b60a365e390f/fx1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/209bd1f4d485/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/5aa71dc1a9e4/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/a8fddbb41419/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/84b3fca28f13/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/4d31fa56b3b5/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/31886c6c4edf/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/5ab21616a7fb/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/c179837af6ec/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/2ec55f2f3d57/gr9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/aaab9d6022fa/gr10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/495657a0955f/gr11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/b60a365e390f/fx1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/209bd1f4d485/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/5aa71dc1a9e4/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/a8fddbb41419/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/84b3fca28f13/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/4d31fa56b3b5/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/31886c6c4edf/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/5ab21616a7fb/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/c179837af6ec/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/2ec55f2f3d57/gr9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/aaab9d6022fa/gr10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0611/8551540/495657a0955f/gr11.jpg

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