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. 2022 Aug 30;12:14791. doi: 10.1038/s41598-022-19231-3

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Mite body phenotypes upon dsRNA treatment. Two-spotted spider mites, T. urticae, are characterised by the presence of two dark spots, see NC, when observed under bright field. Spots are formed by the accumulation of dark digestive cells (dc) at the anterior of the midgut caeca (c) that can be seen through the semi-transparent cutile. Mites treated with dsRNAs targeting TuVATPase, TuRpn7, TuSnap α, TuRop and TuSrp54 have a dark body phenotype characterized by the accumulation of a dark green pigment in the caeca lumen. Mites treated with dsRNAs targeting TuCOPB2, TuHsc70-3 and TuRpt3 displayed a spotless phenotype, characterized by the absence of the accumulation of black digestive cells. caeca (c); caecal midgut epithelium (cme); posterior midgut (pm); digestive cells (dc). Scale bar: 100 μm.