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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
Source PublicationECOLOGY AND EVOLUTION
Volume7Issue:16Pages:6151-6162
SubtypeArticle
AbstractComparisons 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.
KeywordCrassostrea Gene Expression Genetic Variation Phenotypic Plasticity Physiology Tradeoffs
DOI10.1002/ece3.3085
Indexed BySCI
Language英语
WOS IDWOS:000409528000009
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/143130
Collection实验海洋生物学重点实验室
Affiliation1.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
First Author Affilication中国科学院海洋研究所
Recommended Citation
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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