气候变化领域集成服务门户(CCPortal): Reduced physiological plasticity in a fish adapted to stable temperatures

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DOI	10.1073/pnas.2201919119
	Reduced physiological plasticity in a fish adapted to stable temperatures
	Morgan, Rachael; Andreassen, Anna H.; Asheim, Eirik R.; Finnoen, Mette H.; Dresler, Gunnar; Brembu, Tore; Loh, Adrian; Miest, Joanna J.; Jutfelt, Fredrik
发表日期	2022
ISSN	0027-8424
EISSN	1091-6490
卷号	119 期号:22
英文摘要	Plasticity can allow organisms to maintain consistent performance across a wide range of environmental conditions. However, it remains largely unknown how costly plasticity is and whether a trade-off exists between plasticity and performance under optimal conditions. Biological rates generally increase with temperature, and to counter that effect, fish use physiological plasticity to adjust their biochemical and physiological functions. Zebrafish in the wild encounter large daily and seasonal temperature fluctuations, suggesting they should display high physiological plasticity. Conversely, laboratory zebrafish have been at optimal temperatures with low thermal fluctuations for over 150 generations. We treated this domestication as an evolution experiment and asked whether this has reduced the physiological plasticity of laboratory fish compared to their wild counterparts. We measured a diverse range of phenotypic traits, from gene expression through physiology to behavior, in wild and laboratory zebrafish acclimated to 15 temperatures from 10 degrees C to 38 degrees C. We show that adaptation to the laboratory environment has had major effects on all levels of biology. Laboratory fish show reduced plasticity and are thus less able to counter the direct effects of temperature on key traits like metabolic rates and thermal tolerance, and this difference is detectable down to gene expression level. Rapid selection for faster growth in stable laboratory environments appears to have carried with it a trade-off against physiological plasticity in captive zebrafish compared with their wild counterparts.
英文关键词	plasticity; domestication; temperature; ectotherm
语种	英语
WOS研究方向	Multidisciplinary Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:001051443200010
来源期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280971
作者单位	Norwegian University of Science & Technology (NTNU); University of Bergen; University of Helsinki; University of Helsinki; Norwegian University of Science & Technology (NTNU); University of Greenwich
推荐引用方式 GB/T 7714	Morgan, Rachael,Andreassen, Anna H.,Asheim, Eirik R.,et al. Reduced physiological plasticity in a fish adapted to stable temperatures[J],2022,119(22).
APA	Morgan, Rachael.,Andreassen, Anna H..,Asheim, Eirik R..,Finnoen, Mette H..,Dresler, Gunnar.,...&Jutfelt, Fredrik.(2022).Reduced physiological plasticity in a fish adapted to stable temperatures.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,119(22).
MLA	Morgan, Rachael,et al."Reduced physiological plasticity in a fish adapted to stable temperatures".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 119.22(2022).