期刊
JOURNAL OF EXPERIMENTAL BIOLOGY
卷 218, 期 15, 页码 2365-2372出版社
COMPANY BIOLOGISTS LTD
DOI: 10.1242/jeb.123018
关键词
Ocean acidification; Temperature; Parental effects; Epigenetics; Stress
类别
资金
- National Science Foundation (NSF) Experimental Program to Stimulate Competitive Research (EPSCoR) [EPS-0903833]
- NSF grant [0752604, OCE-PRF-1323822]
- International Society for Reef Studies
- Ocean Conservancy
- American Fisheries Society
- US Environmental Protection Agency (EPA) [FP917199]
- National Marine Sanctuary Program
- Hawaii Institute of Marine Biology Reserve Partnership [2005-008/66882]
- Directorate For Geosciences [1236905] Funding Source: National Science Foundation
- Division Of Ocean Sciences [1323822] Funding Source: National Science Foundation
Coral reefs are globally threatened by climate change-related ocean warming and ocean acidification (OA). To date, slow-response mechanisms such as genetic adaptation have been considered the major determinant of coral reef persistence, with little consideration of rapid-response acclimatization-mechanisms. These rapid mechanisms such as parental effects that can contribute to trans-generational acclimatization (e.g. epigenetics) have, however, been identified as important contributors to offspring response in other systems. We present the first evidence of parental effects in a cross-generational exposure to temperature and OA in reef-building corals. Here, we exposed adults to high (28.9 degrees C, 805 mu atm P-CO2) or ambient (26.5 degrees C, 417 mu atm P-CO2) temperature and OA treatments during the larval brooding period. Exposure to high treatment negatively affected adult performance, but their larvae exhibited size differences and metabolic acclimation when subsequently re-exposed, unlike larvae from parents exposed to ambient conditions. Understanding the innate capacity corals possess to respond to current and future climatic conditions is essential to reef protection and maintenance. Our results identify that parental effects may have an important role through (1) ameliorating the effects of stress through preconditioning and adaptive plasticity, and/or (2) amplifying the negative parental response through latent effects on future life stages. Whether the consequences of parental effects and the potential for trans-generational acclimatization are beneficial or maladaptive, our work identifies a critical need to expand currently proposed climate change outcomes for corals to further assess rapid response mechanisms that include non-genetic inheritance through parental contributions and classical epigenetic mechanisms.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据