How integrated phenotypic responses to stress shape invasion success: Lessons from Daphnia pulex

How integrated phenotypic responses to stress shape invasion success: Lessons from Daphnia pulex | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 17 June 2025 V1 Latest version Share on How integrated phenotypic responses to stress shape invasion success: Lessons from Daphnia pulex Authors : Xiaofei Tian 0000-0001-7273-6672 [email protected] , Wenping Feng , and Xiumei Zhang Authors Info & Affiliations https://doi.org/10.22541/au.175018346.68011536/v1 250 views 114 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Environmental variability drives adaptive responses, yet how organisms with minimal genetic diversity adapt remains unclear. Using invasive Daphnia pulex (JPN1 lineage), we demonstrate that phenotypic integration—coordinated trait expression—mediates environmental adaptation despite limited genetic divergence. We found that environment-dependent integration drives stress adaptation more strongly than genetic distance, with differential plasticity dynamically reorganizing trait correlations. Notably, digestive enzymes (particularly lipase) and body size showed tightly coordinated responses to resource limitation, revealing how phenotypic networks reorganize under stress. By developing a quantitative framework to track these genotype-environment interactions, we show how integration facilitates adaptation in genetically impoverished populations. These results challenge the paradigm that genetic divergence is essential for phenotypic adaptation and provide mechanistic insights into invasion success. Our approach bridges invasion biology and eco-evolutionary theory, offering predictive tools for understanding rapid adaptation in diverse asexual systems facing environmental change. Supplementary Material File (main_text.docx) Download 80.61 KB Information & Authors Information Version history V1 Version 1 17 June 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords adaptive plasticity daphnia pulex genetic distance genotype-environment interactions phenotypic integration phenotypic plasticity Authors Affiliations Xiaofei Tian 0000-0001-7273-6672 [email protected] Zhejiang Ocean University View all articles by this author Wenping Feng Zhejiang Ocean University View all articles by this author Xiumei Zhang Zhejiang Ocean University View all articles by this author Metrics & Citations Metrics Article Usage 250 views 114 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Xiaofei Tian, Wenping Feng, Xiumei Zhang. How integrated phenotypic responses to stress shape invasion success: Lessons from Daphnia pulex. Authorea . 17 June 2025. DOI: https://doi.org/10.22541/au.175018346.68011536/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. 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