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Integrated microRNA and transcriptome profiling reveals a miRNA-mediated regulatory network of embryo abortion under calcium deficiency in peanut (Arachis hypogaea L.)

文献类型： 外文期刊

作者： Chen, Hua 1 ; Yang, Qiang 1 ; Chen, Kun 1 ; Zhao, Shanshan 1 ; Zhang, Chong 1 ; Pan, Ronglong 4 ; Cai, Tiecheng 1 ; Deng, Ye 1 ; Wang, Xingjun 6 ; Chen, Yuting 1 ; Chu, Wenting 1 ; Xie, Wenping 1 ; Zhuang, Weijian 1 ;

作者机构： 1.Fujian Agr & Forestry Univ, State Key Lab Ecol Pest Control Fujian & Taiwan C, Fuzhou 350002, Fujian, Peoples R China

2.Fujian Agr & Forestry Univ, Fujian Prov Key Lab Crop Mol & Cell Biol, Fuzhou 350002, Fujian, Peoples R China

3.Fujian Agr & Forestry Univ, Coll Plant Protect, Fuzhou 350002, Fujian, Peoples R China

4.Natl Tsing Hua Univ, Dept Life Sci, Coll Life Sci, Hsinchu 30013, Taiwan

5.Natl Tsing Hua Univ, Inst Bioinformat & Struct Biol, Coll Life Sci, Hsinchu 30013, Taiwan

6.Shandong Acad Agr Sci, Biotechnol Res Ctr, Shandong Prov Key Lab Crop Genet Improvement Ecol, Jinan 250100, Shandong, Peoples R China

关键词： Peanut; miRNA; Embryo abortion; Calcium; Hormone

期刊名称：BMC GENOMICS （ 影响因子：3.969； 五年影响因子：4.478 ）

ISSN： 1471-2164

年卷期： 2019 年 20 卷

页码：

收录情况： SCI

摘要： Background: Peanut embryo development is a complex process involving a series of gene regulatory pathways and is easily affected by various elements in the soil. Calcium deficiency in the soil induces early embryo abortion in peanut, which provides an opportunity to determine the mechanism underlying this important event. MicroRNA (miRNA)-guided target gene regulation is vital to a wide variety of biological processes. However, whether miRNAs participate in peanut embryo abortion under calcium deficiency has yet to be explored. Results: In this study, with the assistance of a recently established platform for genome sequences of wild peanut species, we analyzed small RNAs (sRNAs) in early peanut embryos. A total of 29 known and 132 potential novel miRNAs were discovered in 12 peanut-specific miRNA families. Among the identified miRNAs, 87 were differentially expressed during early embryo development under calcium deficiency and sufficiency conditions, and 117 target genes of the differentially expressed miRNAs were identified. Integrated analysis of miRNAs and transcriptome expression revealed 52 differentially expressed target genes of 20 miRNAs. The expression profiles for some differentially expressed targets by gene chip analysis were consistent with the transcriptome sequencing results. Together, our results demonstrate that seed/embryo development-related genes such as TCP3, AP2, EMB2750, and GRFs; cell division and proliferation-related genes such as HsfB4 and DIVARICATA; plant hormone signaling pathway-related genes such as CYP707A1 and CYP707A3, with which abscisic acid (ABA) is involved; and BR1, with which brassinosteroids (BRs) are involved, were actively modulated by miRNAs during early embryo development. Conclusions: Both a number of miRNAs and corresponding target genes likely playing key roles in the regulation of peanut embryo abortion under calcium deficiency were identified. These findings provide for the first time new insights into miRNA-mediated regulatory pathways involved in peanut embryo abortion under calcium deficiency.

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[1]Integrated microRNA and transcriptome profiling reveals a miRNA-mediated regulatory network of embryo abortion under calcium deficiency in peanut (Arachis hypogaea L.). Chen, Hua,Yang, Qiang,Chen, Kun,Zhao, Shanshan,Zhang, Chong,Cai, Tiecheng,Deng, Ye,Chen, Yuting,Chu, Wenting,Xie, Wenping,Zhuang, Weijian,Chen, Hua,Yang, Qiang,Chen, Kun,Zhao, Shanshan,Zhang, Chong,Cai, Tiecheng,Deng, Ye,Chen, Yuting,Chu, Wenting,Xie, Wenping,Zhuang, Weijian,Chen, Hua,Yang, Qiang,Chen, Kun,Zhao, Shanshan,Zhang, Chong,Cai, Tiecheng,Deng, Ye,Chen, Yuting,Chu, Wenting,Xie, Wenping,Zhuang, Weijian,Pan, Ronglong,Pan, Ronglong,Wang, Xingjun. 2019

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