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. 2021 Oct 8;21:458. doi: 10.1186/s12870-021-03238-5

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© The Author(s) 2021

Open AccessThis 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/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

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Fig. 4 — Overexpression of GhWRKY1-like conferred drought tolerance in Arabidopsis. A The phenotypes of GhWRKY1-like transgenic lines tolerant to drought stress. B The size of WT and GhWRKY1-like transgenic lines after 20 days without watering. C The fresh weight of WT and GhWRKY1-like transgenic lines after 20 days without watering. Values are means ± SD; n = 18. In each column, values not followed by the same letters are significantly different based on Tukey’s multiple comparison test (P < 0.05). D The MAD content of WT and GhWRKY1-like transgenic lines after 20 days without watering. Values are means ± SD; n = 6. Comparisons were performed with Student’s t test. **, P < 0.01. E The proline content of WT and GhWRKY1-like transgenic lines after 20 days without watering. Values are means ± SD; n = 6. Comparisons were performed with Student’s t test. **, P < 0.01