| Genomic insights into the postintroduction failure of the Asian icefish Protosalanx chinensis in China |
| Qi, JW; Pan, HJ; Wang, XC; Xuan, ZY; Pan, XF; Li, XZ; Shen, Y; Yang, J; Zhang, J; Li, M
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| 2023
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| 发表期刊 | MOLECULAR ECOLOGY
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| ISSN | 0962-1083
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| 卷号 | 32期号:14页码:3942-3959 |
| 摘要 | Biological introductions provide a natural ecological experiment unfolding in a recent historical timeframe to elucidate how evolutionary processes (such as founder effects, genetic diversity and adaptation) shape the genomic landscape of populations postintroduction. The Asian icefish, Protosalanx chinensis, is an economically important fishery resource, deliberately introduced into dozens of provinces across China for decades. However, while invading and disturbing the local ecosystem, many introduced populations declined, disappearing mysteriously in a very short time. The way in which various evolutionary forces integrate to result in invasion failure of an introduced population remains unknown. Here, we performed whole-genome sequencing of 10 species from the Salangidae family and 70 Asian icefish (Protosalanx chinensis) individuals from 7 geographic populations in China, aiming to characterize the evolutionary fate of introduced populations. Our results show that compared to other Salangidae species, P. chinensis has low genetic diversity, potentially due to the long-lasting decline in population size. In a recently introducted population, Lugu lake, severe sampling effects and a strong bottleneck further deteriorated the genomic landscape. Although the introduced population showed signs of reduced genetic load, the purging selection efficiency was low. Our selective sweep analysis revealed site frequency changes in candidate genes, including gata1a and hoxd4b, which could be associated with a decrease in dissolved oxygen in the deep-water plateau lake. These findings caution against the widespread introduction of P. chinensis in China and lay the groundwork for future use of this economically species. |
| 收录类别 | SCI
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| 语种 | 英语
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.kiz.ac.cn/handle/152453/14048
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| 专题 | 科研部门_系统进化与生物地理学（杨君兴）
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推荐引用方式
GB/T 7714 |
Qi, JW,Pan, HJ,Wang, XC,et al. Genomic insights into the postintroduction failure of the Asian icefish Protosalanx chinensis in China[J]. MOLECULAR ECOLOGY,2023,32(14):3942-3959.
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| APA |
Qi, JW.,Pan, HJ.,Wang, XC.,Xuan, ZY.,Pan, XF.,...&Li, M.(2023).Genomic insights into the postintroduction failure of the Asian icefish Protosalanx chinensis in China.MOLECULAR ECOLOGY,32(14),3942-3959.
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| MLA |
Qi, JW,et al."Genomic insights into the postintroduction failure of the Asian icefish Protosalanx chinensis in China".MOLECULAR ECOLOGY 32.14(2023):3942-3959.
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