Differentiation and decreased genetic diversity in field contaminated oysters Crassostrea hongkongensis: Identification of selection signatures*
文献类型：期刊论文
| 作者 | Meng, Jie1,2,4,5 ; Wang, Wen-Xiong3,4,5
|
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2023-09-15 |
| 卷号 | 333页码:12 |
| 关键词 | Oyster Population structure Genetic diversity Selective sweeps Metal GWAS |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2023.122101 |
| 通讯作者 | Wang, Wen-Xiong(wx.wang@cityu.edu.hk) |
| 英文摘要 | The extent to which chemical contamination affects the population structure and genetic diversity of natural populations remains elusive. Here, we used the whole-genome resequencing and transcriptome to diagnose the effects of long-term exposure to multiple elevated chemical pollutants on the population differentiation and genetic diversity in oysters Crassostrea hongkongensis in a typically polluted Pearl River Estuary (PRE) of Southern China. Population structure revealed an obvious differentiation between the PRE oysters and those collected from a nearby clean Beihai (BH) individuals, while no significant differentiation was observed among individuals collected from the three pollution sites within PRE due to the high gene flow. The decreased genetic diversity in the PRE oysters reflected the long-term effects of chemical pollutants. Selective sweeps between BH and PRE oysters revealed that chemical defensome genes, including glutathione S-transferase, zinc transporter, were responsible for their differentiation, sharing common metabolic process of other pollutants. Combined with the genome-wide association analysis, 25 regions containing 77 genes were identified to be responsible for the direct selection regions of metals. Linkage disequilibrium blocks and haplotypes within these regions provided the biomarkers of permanent effects. Our results provide important insights to the genetic mechanisms underlying the rapid evolution under chemical contamination in marine bivalves. |
| WOS关键词 | GENOME-WIDE ASSOCIATION ; METALS POLLUTION ; POPULATIONS ; ADAPTATION ; RESISTANCE ; RESPONSES ; HERITABILITY ; VARIABILITY ; TOLERANCE ; EVOLUTION |
| 资助项目 | Youth Innovation Promotion Association of the Chinese Academy of Science, China[2019210] ; National Natural Science Foundation of China, China[32102815] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001034456200001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/182529]  |
| 专题 | 海洋研究所_实验海洋生物学重点实验室 |
| 通讯作者 | Wang, Wen-Xiong |
| 作者单位 | 1.Key Lab Breeding Biotechnol & Sustainable Aquacult, Wuhan, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao, Peoples R China 3.City Univ Hong Kong, Res Ctr Oceans & Human Hlth, Shenzhen Res Inst, Shenzhen 518057, Peoples R China 4.City Univ Hong Kong, Sch Energy & Environm, Hong Kong, Peoples R China 5.City Univ Hong Kong, State Key Lab Marine Pollut, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Jie,Wang, Wen-Xiong. Differentiation and decreased genetic diversity in field contaminated oysters Crassostrea hongkongensis: Identification of selection signatures*[J]. ENVIRONMENTAL POLLUTION,2023,333:12. |
| APA | Meng, Jie,&Wang, Wen-Xiong.(2023).Differentiation and decreased genetic diversity in field contaminated oysters Crassostrea hongkongensis: Identification of selection signatures*.ENVIRONMENTAL POLLUTION,333,12. |
| MLA | Meng, Jie,et al."Differentiation and decreased genetic diversity in field contaminated oysters Crassostrea hongkongensis: Identification of selection signatures*".ENVIRONMENTAL POLLUTION 333(2023):12. |
入库方式： OAI收割
来源：海洋研究所
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