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Identification and Characterization of microRNA during Bemisia tabaci Infestations in Solanum lycopersicum and Solanum habrochaites 被引量:7

Identification and Characterization of microRNA during Bemisia tabaci Infestations in Solanum lycopersicum and Solanum habrochaites
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摘要 MicroRNAs(miRNAs) are a class of small non-coding RNAs that can regulate target gene expression during many plant growth and development processes. In recent years, several studies identified the miRNAs involved in fruit development, leaf development, and abiotic responses in tomato. However, little is known about the miRNAs that respond to insect attack. Here, miRNAs were identified by high-throughput sequencing at different stages after infections by the whitefly Bemisia tabaci in Solanum lycopersicum and Solanum habrochaites, which are susceptible and resistant to whitefly, respectively. A total of 44 known miRNA families were identified, and 33 were shared between the two species. Among these, 13 miRNA families were newly reported in tomato. After strict filtering, some novel miRNAs were also discovered. The global expression patterns of the miRNAs exhibited were different between the two species, reflecting their different responses and resistance levels to whitefly attack. Some of the predicted target genes of differentially expressed miRNAs may be involved in responding to, and defending against, diseases and insects. Thus, plant miRNAs are important in the responses to, and resistance against, insects and provide a useful resource for further investigations into the mechanism of miRNA-mediated plant–insect interactions. MicroRNAs(miRNAs) are a class of small non-coding RNAs that can regulate target gene expression during many plant growth and development processes. In recent years, several studies identified the miRNAs involved in fruit development, leaf development, and abiotic responses in tomato. However, little is known about the miRNAs that respond to insect attack. Here, miRNAs were identified by high-throughput sequencing at different stages after infections by the whitefly Bemisia tabaci in Solanum lycopersicum and Solanum habrochaites, which are susceptible and resistant to whitefly, respectively. A total of 44 known miRNA families were identified, and 33 were shared between the two species. Among these, 13 miRNA families were newly reported in tomato. After strict filtering, some novel miRNAs were also discovered. The global expression patterns of the miRNAs exhibited were different between the two species, reflecting their different responses and resistance levels to whitefly attack. Some of the predicted target genes of differentially expressed miRNAs may be involved in responding to, and defending against, diseases and insects. Thus, plant miRNAs are important in the responses to, and resistance against, insects and provide a useful resource for further investigations into the mechanism of miRNA-mediated plant–insect interactions.
出处 《Horticultural Plant Journal》 SCIE 2018年第2期62-72,共11页 园艺学报(英文版)
基金 supported by the National Natural Science Foundation of China (31471874) the National Key Research and Development Program of China (2016YFD0101007 and 2016YFD0101703) the Science and Technology Innovation Program of the Chinese Academy of Agricultural Sciences
关键词 Solanum lycopersicum Solanum habrochaites Bemisia tabaci MIRNAS whitefly infection high-throughput sequencing Solanum lycopersicum Solanum habrochaites Bemisia tabaci miRNAs whitefly infection high-throughput sequencing
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