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. 2019 Jun 20;9:8857. doi: 10.1038/s41598-019-45410-w

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© The Author(s) 2019

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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Behavioural analysis of circadian rhythm conservation between Dapma-CRYs and Drome-CRY. (A–F) Actogram showing the average locomotor activity of control (tim⁶²-Gal4/+; cry⁰¹/cry⁰¹, n = 29, A), each Tim-Dapma-CRY (tim⁶²-gal4/UAS-Dapma-cryA; cry⁰¹/cry⁰¹, n = 29, B; tim⁶²-gal4/UAS-Dapma-cryB; cry⁰¹/cry⁰¹, n = 29, C; tim⁶²-gal4/UAS-Dapma-cryC; cry⁰¹/cry⁰¹, n = 29, D; tim⁶²-gal4/UAS-Dapma-cryD; cry⁰¹/cry⁰¹, n = 30, E) and Tim-Drome-CRY (tim⁶²-gal4/UAS-Drome-cry; cry⁰¹/cry⁰¹, n = 29, F) flies. Individual male flies were entrained under a 12-h:12-h LD cycle for 3 days and then monitored under LL conditions for 10 days. Grey shading indicates the dark phase during LD. (G–L) The chi-squared periodogram of control (G), each Tim-Dapma-CRY (H–K) and Tim-Drome-CRY (L) flies. The periodograms were obtained using records of LL conditions. The longitudinal line in each periodogram indicates the highest peak that crosses the line of significance. An oblique line in the χ² periodogram indicates a significant level of p = 0.05.