Aphid feeding induces the relaxation of epigenetic control and the associated regulation of the defense response in Arabidopsis

被引：24
作者：
Annacondia, Maria Luz [1 ,2 ]
Markovic, Dimitrije [3 ,4 ]
Reig-Valiente, Juan Luis [1 ,2 ]
Scaltsoyiannes, Vassilis [1 ,2 ,5 ]
Pieterse, Corne M. J. [6 ]
Ninkovic, Velemir [7 ]
Slotkin, R. Keith [8 ,9 ]
Martinez, German [1 ,2 ]
机构：
[1] Swedish Univ Agr Sci, Uppsala BioCtr, Dept Plant Biol, S-75007 Uppsala, Sweden
[2] Linnean Ctr Plant Biol, S-75007 Uppsala, Sweden
[3] Swedish Univ Agr Sci, Dept Crop Prod Ecol, S-75007 Uppsala, Sweden
[4] Univ Banja Luka, Fac Agr, Banja Luka 78000, Bosnia & Herceg
[5] Strasbourg Univ, Inst Biol Mol Plantes, CNRS, UPR 2357, F-67000 Strasbourg, France
[6] Univ Utrecht, Dept Biol, Science4Life, NL-3584 CS Utrecht, Netherlands
[7] Swedish Univ Agr Sci, Dept Ecol, S-75007 Uppsala, Sweden
[8] Donald Danforth Plant Sci Ctr, St Louis, MO 63132 USA
[9] Univ Missouri Columbia, Div Biol Sci, Columbia, MO 65021 USA
来源：
NEW PHYTOLOGIST | 2021年 / 230卷 / 03期
基金：
瑞典研究理事会;
关键词：
aphids; Arabidopsis; defense response; epigenetics; transcriptional regulation; transposable elements; GENOME-WIDE ANALYSIS; TRANSPOSABLE ELEMENTS; DNA METHYLATION; JASMONIC ACID; RESISTANCE; PLANTS; EXPRESSION; CHROMATIN; THALIANA; REVEALS;
D O I：
10.1111/nph.17226
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Environmentally induced changes in the epigenome help individuals to quickly adapt to fluctuations in the conditions of their habitats. We explored those changes in Arabidopsis thaliana plants subjected to multiple biotic and abiotic stresses, and identified transposable element (TE) activation in plants infested with the green peach aphid, Myzus persicae. We performed a genome-wide analysis mRNA expression, small RNA accumulation and DNA methylation Our results demonstrate that aphid feeding induces loss of methylation of hundreds of loci, mainly TEs. This loss of methylation has the potential to regulate gene expression and we found evidence that it is involved in the control of plant immunity genes. Accordingly, mutant plants deficient in DNA and H3K9 methylation (kyp) showed increased resistance to M. persicae infestation. Collectively, our results show that changes in DNA methylation play a significant role in the regulation of the plant transcriptional response and induction of defense response against aphid feeding.
引用
收藏
页码：1185 / 1200
页数：16
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