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Identification of SNPs involved in Zn and Cu accumulation in the Pacific oyster (Crassostrea gigas) by genome-wide association analysis
Meng, Jie1,2,4; Wang, Wenxiong5; Shi, Ruihui1,2,4; Song, Kai1; Li, Li1,3,4; Que, Huayong1,2,4; Zhang, Guofan1,2,4
2020-04-01
发表期刊ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
ISSN0147-6513
卷号192页码:8
通讯作者Li, Li(lili@qdio.ac.cn) ; Zhang, Guofan(gzhang@qdio.ac.cn)
摘要Oysters accumulate high concentrations of zinc (Zn) and copper (Cu), which can be transferred to human due to sea food consumption. Breeding new oyster varieties with low Zn and Cu accumulations is one important way to improve food safety. However, the genetic basis for metal accumulation in mollusks is not well understood. To address this issue, oysters collected in the field were used for genome-wide association study (GWAS) and then the identified genes were used for mRNA expressions analysis in laboratory. First, GWAS were conducted for Zn and Cu accumulation in 288 wild Pacific oysters (Crassostrea gigas) farmed in the same ocean environment. The oysters did not show obvious population structure or kinship but exhibited 8.43- and 10.0- fold changes of Zn and Cu contents respectively. GWAS have identified 11 and 12 single nucleotide polymorphisms (SNPs) associated with Zn and Cu, respectively, as well as 16 genes, which were Zn-containing proteins or participated in caveolae-dependent endocytosis. Second, the mRNA expressions of these 16 genes were observed under Zn and Cu exposure. After 9 days of Zn exposure, Zn contents increased 3.1-fold, while the mRNA expression of cell number regulator 3 increased 1.65-fold. Under 9 days of Cu exposure, Cu contents increased 1.97-fold, while the mRNA expression of caveolin-1 decreased 0.61-fold. These provide the evidence for their roles in regulating physiological levels of these two metals. The findings advance our understanding of the genetic basis of Zn and Cu accumulation in mollusks, which can be useful for breeding new, less toxic varieties of oysters.
关键词Oyster Metal accumulation SNP chips Association analysis Genetic basis
DOI10.1016/j.ecoenv.2020.110208
收录类别SCI
语种英语
资助项目Youth Innovation Promotion Association, Chinese academy of science (CAS) ; Laboratory for Marine Fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and Technology of China[2017-2B07] ; Shandong Provincial Natural Science Foundation of China[ZR2016DQ13] ; National Natural Science Foundation of China[31530079] ; Earmarked Fund for Modern Agro-industry Technology Research System[CARS-49]
WOS研究方向Environmental Sciences & Ecology ; Toxicology
WOS类目Environmental Sciences ; Toxicology
WOS记录号WOS:000518502300014
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/165859
专题实验海洋生物学重点实验室
海洋生态与环境科学重点实验室
通讯作者Li, Li; Zhang, Guofan
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Fisheries & Aquaculture, Qingdao, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, Natl & Local Joint Engn Lab Ecol Mariculture, Qingdao, Peoples R China
5.HKUST Shenzhen Res Inst, Marine Environm Lab, Shenzhen 518057, Peoples R China
第一作者单位中国科学院海洋研究所
通讯作者单位中国科学院海洋研究所
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GB/T 7714
Meng, Jie,Wang, Wenxiong,Shi, Ruihui,et al. Identification of SNPs involved in Zn and Cu accumulation in the Pacific oyster (Crassostrea gigas) by genome-wide association analysis[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2020,192:8.
APA Meng, Jie.,Wang, Wenxiong.,Shi, Ruihui.,Song, Kai.,Li, Li.,...&Zhang, Guofan.(2020).Identification of SNPs involved in Zn and Cu accumulation in the Pacific oyster (Crassostrea gigas) by genome-wide association analysis.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,192,8.
MLA Meng, Jie,et al."Identification of SNPs involved in Zn and Cu accumulation in the Pacific oyster (Crassostrea gigas) by genome-wide association analysis".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 192(2020):8.
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