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通过Stu-miR156调控马铃薯中SPL9转录因子来控制株高和侧根发育

Control of Plant Height and Lateral Root Development via Stu-miR156 Regulation of SPL9 Transcription Factor in Potato.

作者信息

Luo Hongyu, Yang Jiangwei, Liu Shengyan, Li Shigui, Si Huaijun, Zhang Ning

机构信息

State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China.

College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China.

出版信息

Plants (Basel). 2024 Mar 4;13(5):723. doi: 10.3390/plants13050723.

DOI:10.3390/plants13050723
PMID:38475569
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10934393/
Abstract

MicroRNAs (miRNAs) are a class of endogenous, non-coding small-molecule RNAs that usually regulate the expression of target genes at the post-transcriptional level. miR156 is one of a class of evolutionarily highly conserved miRNA families. SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPL) transcription factor is one of the target genes that is regulated by miR156. SPL transcription factors are involved in regulating plant growth and development, hormone response, stress response, and photosynthesis. In the present study, transgenic potato plants with overexpressed miR156 were obtained via the -mediated transformation method. The results showed that the expression levels of the target gene, , were all downregulated in the transgenic plants with overexpressed Stu-miR156. Compared with those of the control plants, the plant height and root length of the transgenic plants were significantly decreased, while the number of lateral roots was significantly increased. These results revealed that the miR156/SPLs module was involved in regulating potato plant height and root growth.

摘要

微小RNA（miRNA）是一类内源性非编码小分子RNA，通常在转录后水平调控靶基因的表达。miR156是一类进化上高度保守的miRNA家族之一。SQUAMOSA启动子结合蛋白样（SPL）转录因子是受miR156调控的靶基因之一。SPL转录因子参与调控植物生长发育、激素应答、应激反应和光合作用。在本研究中，通过介导转化法获得了过表达miR156的转基因马铃薯植株。结果表明，在过表达Stu-miR156的转基因植株中，靶基因的表达水平均下调。与对照植株相比，转基因植株的株高和根长显著降低，而侧根数量显著增加。这些结果表明，miR156/SPLs模块参与调控马铃薯植株高度和根系生长。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0c70/10934393/122b59b625e2/plants-13-00723-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0c70/10934393/63fd835766ac/plants-13-00723-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0c70/10934393/dade25e7a824/plants-13-00723-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0c70/10934393/e03723895455/plants-13-00723-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0c70/10934393/b344ede1696f/plants-13-00723-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0c70/10934393/cb0475a1e7e3/plants-13-00723-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0c70/10934393/122b59b625e2/plants-13-00723-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0c70/10934393/63fd835766ac/plants-13-00723-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0c70/10934393/dade25e7a824/plants-13-00723-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0c70/10934393/e03723895455/plants-13-00723-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0c70/10934393/b344ede1696f/plants-13-00723-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0c70/10934393/cb0475a1e7e3/plants-13-00723-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0c70/10934393/122b59b625e2/plants-13-00723-g006.jpg

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J Exp Bot. 2020 Jan 23;71(3):934-950. doi: 10.1093/jxb/erz475.
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Lateral Root Development in Potato Is Mediated by Stu-mi164 Regulation of NAC Transcription Factor.
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