한빛사 논문
Young Hwan Lee 1,7*, Min-Sub Kim1,7, Minghua Wang2, Ramji K. Bhandari3, Heum Gi Park4, Rudolf Shiu-Sun Wu5,6 and Jae-Seong Lee1,*
1Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon, South Korea. 2Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies/College of the Environment and Ecology, Xiamen University, Xiamen, China. 3Department of Biology, University of North Carolina Greensboro, Greensboro, NC, USA. 4Department of Marine Ecology and Environment, College of Life Sciences, Gangneung-Wonju National University, Gangneung, South Korea. 5Department of Science and Environmental Studies, The Education University of Hong Kong, Kowloon, China. 6State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, China. 7These authors contributed equally: Young Hwan Lee, Min-Sub Kim.
*Corresponding author.
Abstract
Plasticity enhances species fitness and survival under climate change. Ocean acidification poses a potential threat to copepods, a major zooplankton group that serves as a key link between the lower and higher trophic levels in the marine environment, yet the mechanisms underlying different adaptive responses remain poorly understood. Here we show that although elevated CO2 can exert negative effects on reproduction of Paracyclopina nana, multigenerational plasticity can enable recovery after three generations. By integrating the methylome and transcriptome with the draft genome and undertaking DNA methylation treatments, we demonstrate the vital role of epigenetic modifications in ocean acidification responses and identify regions associated with reproductive resilience. Our results demonstrate that DNA methylation might play an important role in enhancing species fitness of copepods and that failing to consider phenotypic plasticity could lead to overestimation of species’ vulnerabilities.
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