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A mir-927 that regulates insect wing development and its application in pest control

A mir-927, Drosophila technology, applied in applications, pesticides, plant growth regulators, etc., can solve the problems of not mentioning miR-927 development and affecting growth and development, and achieve significant economic and social benefits, The effect of reducing the fin area

Active Publication Date: 2021-08-13
SHANDONG AGRICULTURAL UNIVERSITY
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] miR-927 is one of many miRNAs, but there are few studies on the function of miR-927. It has been reported that miR927 can affect the Drosophila juvenile hormone signaling pathway, thereby affecting its growth and development, but no mention of miR-927 Can regulate wing development

Method used

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  • A mir-927 that regulates insect wing development and its application in pest control
  • A mir-927 that regulates insect wing development and its application in pest control
  • A mir-927 that regulates insect wing development and its application in pest control

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Embodiment 1

[0035] 1. Overexpression of miR-927 significantly reduces the wing area of ​​Drosophila

[0036] UAS-GFP and UAS-miR-927 male flies were crossed with En-gal4 virgin flies specifically expressed in the posterior (P) region of Drosophila wings, and the adult wing phenotypes of the offspring were observed. The wings were photographed with a stereo microscope, and the areas of the P area and anterior (A) area were measured by ImageJ software, and the P / A ratio was calculated, compared with the control group, and statistically analyzed. Due to the difference in the individual size of offspring male Drosophila and female Drosophila, this study carried out statistics on the female and male individuals separately. The results of this study only show the wings and statistical results of male Drosophila adults.

[0037] The result is as figure 1 As shown, the P / A value of the control group was 1.3, and the P / A value decreased to 0.9 after miR-927 was overexpressed. Further statistical...

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Abstract

The invention discloses a miRNA regulating insect wing development and its application in pest control. The study of the present invention found that overexpressing miR-927 can significantly reduce the wing area and inhibit wing development; further research found that the mechanism of action is: miR-927 directly inhibits the expression of the transcription factor Yki in the Hippo signaling pathway, and then inhibits the downstream of the pathway Promotes cell proliferation and inhibits the expression of apoptosis target genes, and ultimately inhibits wing development. The miR-927 of the present invention can significantly inhibit the development of insect wings, and provide important target gene resources for RNAi-mediated pest biological control by artificially synthesizing miR-927 or its analogs, or using transgenic plants expressing miR-927. It will provide important theoretical and practical significance for the control of Pteroptera pests, and also have significant economic and social benefits.

Description

technical field [0001] The invention relates to the fields of agricultural biotechnology and pest control, in particular to a miR-927 regulating insect wing development and its application in pest control. Background technique [0002] As an important organ of insects, wings endow insects with the ability to fly and increase the space for insects to feed and mate. At present, winged insects have become the focus and difficulty in the control of agricultural pests. Analyzing the molecular mechanism of insect wing development regulation and finding ways to inhibit wing development will provide important theoretical and practical significance for the control of winged insects. [0003] MicroRNA (miRNA) is a kind of small molecule non-coding RNA with a length of about 22nt, which is highly conserved in animal evolution. By recognizing the binding site on the 3'-UTR of the target gene mRNA, miRNA causes the transcriptional repression of the target gene or the degradation of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N57/16A01P7/04A01K67/033
CPCA01K67/0339A01K2227/706A01N57/16
Inventor 周紫章刘庆信赵云贺于璇
Owner SHANDONG AGRICULTURAL UNIVERSITY
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