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Ecol Evol

Title:		Transcriptome profiling of maternal stress-induced wing dimorphism in pea aphids
Author(s):		Hu L; Gui W; Chen B; Chen L;
Address:		State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of Zoology Chinese Academy of Sciences Beijing China. Key Laboratory of Beibu Gulf Environment Change and Resources Utilization of Ministry of Education Nanning Normal University Nanning China. University of Chinese Academy of Science Beijing China. College of Life Science Hebei University Baoding China
Journal Title:		Ecol Evol
Year:		2019
Volume:		20191002
Issue:		20
Page Number:		11848 - 11862
DOI:		10.1002/ece3.5692
ISSN/ISBN:		2045-7758 (Print) 2045-7758 (Electronic) 2045-7758 (Linking)
Abstract:		"Wing dimorphism, that is, wingless and winged forms, can be induced by maternal stress signals and is an adaptive response of aphids to environmental changes. Here, we investigated the ecological and molecular effects of three kinds of stress, namely crowding, predation, and aphid alarm pheromone, on wing dimorphism. These three stressors induced high proportion of up to 60% of winged morphs in offspring. Transcriptome analysis of stress-treated female aphids revealed different changes in maternal gene expression induced by the three stressors. Crowding elicited widespread changes in the expression of genes involved in nutrient accumulation and energy mobilization. Distinct from crowding, predation caused dramatic expression changes in cuticle protein (CP) genes. Twenty-three CP genes that belong to CP RR2 subfamily and are highly expressed in legs and embryos were greatly repressed by the presence of ladybird. By contrast, application of alarm pheromone, E-beta-farnesene, caused slight changes in gene expression. The three factors shared a responsive gene, cuticle protein 43. This study reveals the adaptive response of aphids to environmental stresses and provides a rich resource on genome-wide expression genes for exploring molecular mechanisms of ecological adaptation in aphids. OPEN RESEARCH BADGES: This article has earned an Open Data Badge for making publicly available the digitally-shareable data necessary to reproduce the reported results. The data is available at https://doi.org/10.5061/dryad.55b2b15"
Keywords:		alarm pheromone crowding maternal stress pea aphid predation transcriptome profiling wing dimorphism;
Notes:		"PubMed-not-MEDLINEHu, Lin Gui, Wanying Chen, Bing Chen, Li eng England 2019/11/07 Ecol Evol. 2019 Oct 2; 9(20):11848-11862. doi: 10.1002/ece3.5692. eCollection 2019 Oct"