Low genetic diversity and functional constraint of miRNA genes participating pollen-pistil interaction in rice | |
Shi, Tao1; Wang, Kun1,3; Wang, Xin1; Li, Ming1; Yang, Pingfang1,2 | |
刊名 | PLANT MOLECULAR BIOLOGY
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2017-09-01 | |
卷号 | 95期号:1-2页码:89-98 |
关键词 | MicroRNA Oryza sativa Evolution Pistil-pollination interaction |
ISSN号 | 0167-4412 |
DOI | 10.1007/s11103-017-0638-0 |
英文摘要 | Pollen-pistil interaction is an essential reproductive process for all flowering plants. While microRNAs (miRNAs) are important noncoding small RNAs that regulate mRNA levels in eukaryotic cells, there is little knowledge about which miRNAs involved in the early stages of pollen-pistil interaction in rice and how they evolve under this conserved process. In this study, we sequenced the small RNAs in rice from unpollinated pistil (R0), pistil from 5 min and 15 min after pollination, respectively, to identify known and novel miRNAs that are involved in this process. By comparing the corresponding mRNA-seq dataset, we identified a group of miRNAs with strong negative expression pattern with their target genes. Further investigation of all miRNA loci (MIRNAs) across 1083 public rice accessions revealed significantly reduced genetic diversity in MIRNAs with strong negative expression of their targets when comparing to those with little or no impact on targets during pollen-pistil interaction. Annotation of targets suggested that those MIRNAs with strong impact on targets were pronounced in cell wall related processes such as xylan metabolism. Additionally, plant conserved miRNAs, such as those with functions in gibberellic acid, auxin and nitrate signaling, were also with strong negative expression of their targets. Overall, our analyses identified key miRNAs participating pollen-pistil interaction and their evolutionary patterns in rice, which can facilitate the understanding of molecular mechanisms associated with seed setting. |
资助项目 | National Natural Science Foundation of China[31671775] ; National Natural Science Foundation of China[31100230] ; National Key Research and Development Program of China[2016YFD0100904] ; Open Research Fund of State Key Laboratory of Hybrid Rice, Wuhan University[KF201306] |
WOS研究方向 | Biochemistry & Molecular Biology ; Plant Sciences |
语种 | 英语 |
出版者 | SPRINGER |
WOS记录号 | WOS:000410475500006 |
内容类型 | 期刊论文 |
源URL | [http://202.127.146.157/handle/2RYDP1HH/1316] ![]() |
专题 | 中国科学院武汉植物园 |
通讯作者 | Shi, Tao; Yang, Pingfang |
作者单位 | 1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan, Hubei, Peoples R China 2.Chinese Acad Sci, Sinoafrican Joint Res Ctr, Wuhan, Hubei, Peoples R China 3.Wuhan Univ, Coll Life Sci, Wuhan, Hubei, Peoples R China |
推荐引用方式 GB/T 7714 | Shi, Tao,Wang, Kun,Wang, Xin,et al. Low genetic diversity and functional constraint of miRNA genes participating pollen-pistil interaction in rice[J]. PLANT MOLECULAR BIOLOGY,2017,95(1-2):89-98. |
APA | Shi, Tao,Wang, Kun,Wang, Xin,Li, Ming,&Yang, Pingfang.(2017).Low genetic diversity and functional constraint of miRNA genes participating pollen-pistil interaction in rice.PLANT MOLECULAR BIOLOGY,95(1-2),89-98. |
MLA | Shi, Tao,et al."Low genetic diversity and functional constraint of miRNA genes participating pollen-pistil interaction in rice".PLANT MOLECULAR BIOLOGY 95.1-2(2017):89-98. |
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