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. 2018 Mar 16;8:4698. doi: 10.1038/s41598-018-23090-2

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© The Author(s) 2018

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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.

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Profiles of abundance of proteins involved in yolk processing and vitellin (Vt) accumulation in Rhipicephalus microplus ovaries. Dimethyl labelling quantification was performed in ovary extracts of partially engorged female groups PEF-24, -35, -53, -84, 189, -270. For dimethyl labelling quantification, the ratio is the intensity detected for each peptide, relative to the internal standard (a protein pool of all samples used in this study). The average ratio of a protein is calculated as the mean ratio of its peptides. Chart (a) shows protein average ratio of the receptor involved in yolk uptake, Rhipicephalus microplus Vitellogenin Receptor (RmVgR), and the proteases implicated in yolk degradation, namely Vitellin-Degrading Cysteine Endopeptidase (VTDCE), Tick Haeme-binding Aspartic Proteinase (THAP), and Boophilus Yolk pro-Cathepsin (BYC). Chart (b) shows average ratio of Vt polypeptides. Numbers of ticks composing each group are: PEF-10 (n = 10), PEF-16 (n = 9), PEF-24 (n = 28), PEF-35 (n = 23), PEF-53 (n = 8), PEF-84 (n = 9), PEF-189 (n = 5), PEF-270 (n = 5).