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Temperature, energy metabolism, and adaptive divergence in two oyster subspecies
Li, Ao1,2; Li, Li1,3,4; Song, Kai1,4,5; Wang, Wei1,4,5; Zhang, Guofan1,4,5
2017-08-01
发表期刊ECOLOGY AND EVOLUTION
卷号7期号:16页码:6151-6162
文章类型Article
摘要Comparisons of related species that have diverse spatial distributions provide an efficient way to investigate adaptive evolution in face of increasing global warming. The oyster subjected to high environmental selections is a model species as sessile marine invertebrate. This study aimed to detect the adaptive divergence of energy metabolism in two oyster subspecies from the genus Crassostrea-C. gigas gigas and C. gigas angulata-which are broadly distributed along the northern and southern coasts of China, respectively. We examined the effects of acute thermal stress on energy metabolism in two oyster subspecies after being common gardened for one generation in identical conditions. Thermal responses were assessed by incorporating physiological, molecular, and genomic approaches. Southern oysters exhibited higher fluctuations in metabolic rate, activities of key energetic enzymes, and levels of thermally induced gene expression than northern oysters. For genes involved in energy metabolism, the former displayed higher basal levels of gene expression and a more pronounced down-regulation of thermally induced expression, while the later exhibited lower basal levels and a less pronounced downregulation of gene expression. Contrary expression pattern was observed in oxidative stress gene. Besides, energy metabolic tradeoffs were detected in both subspecies. Furthermore, the genetic divergence of a non-synonymous SNP (SOD-132) and five synonymous SNPs in other genes was identified and validated in these two subspecies, which possibly affects downstream functions and explains the aforementioned phenotypic variations. Our study demonstrates that differentiations in energy metabolism underlie the plasticity of adaptive divergence in two oyster subspecies and suggest C. gigas angulata with moderate phenotypic plasticity has higher adaptive potential to cope with exacerbated global warming.
关键词Crassostrea Gene Expression Genetic Variation Phenotypic Plasticity Physiology Tradeoffs
DOI10.1002/ece3.3085
收录类别SCI
语种英语
WOS记录号WOS:000409528000009
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文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/143130
专题实验海洋生物学重点实验室
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao, Shandong, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Fisheries & Aquaculture, Qingdao, Shandong, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, Natl & Local Joint Engn Key Lab Ecol Mariculture, Qingdao, Shandong, Peoples R China
5.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Shandong, Peoples R China
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GB/T 7714
Li, Ao,Li, Li,Song, Kai,et al. Temperature, energy metabolism, and adaptive divergence in two oyster subspecies[J]. ECOLOGY AND EVOLUTION,2017,7(16):6151-6162.
APA Li, Ao,Li, Li,Song, Kai,Wang, Wei,&Zhang, Guofan.(2017).Temperature, energy metabolism, and adaptive divergence in two oyster subspecies.ECOLOGY AND EVOLUTION,7(16),6151-6162.
MLA Li, Ao,et al."Temperature, energy metabolism, and adaptive divergence in two oyster subspecies".ECOLOGY AND EVOLUTION 7.16(2017):6151-6162.
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