期刊
NATURE COMMUNICATIONS
卷 12, 期 1, 页码 -出版社
NATURE PORTFOLIO
DOI: 10.1038/s41467-021-27510-2
关键词
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资金
- National Natural Science Foundation of China [31972271, 31320103922, 31230061]
- Scientific Research Foundation of Graduate School of Fujian Agriculture and Forestry University [324-1122yb058]
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops
- Joint International Research Laboratory of Ecological Pest Control
- Fujian-Taiwan Joint Innovation Centre for Ecological Control of Crop Pests
- International science and technology cooperation and exchange program of FAFU [KXb16014A]
- Thousand Talents Program
- 111 Program in China
The diamondback moth is a global pest with climate-associated adaptive variation predicted to maintain its status as a global pest under climate change. Genetic basis of climatic adaptation is essential for predicting species' responses to climate change. Analysis of genomic data revealed a latitudinal pattern of adaptive variation in diamondback moth, with most populations predicted to have high tolerance to future climates.
The diamondback moth is a cosmopolitan pest of significant economic importance. Here the authors analyse globally distributed genomic data to find evidence of climate-associated adaptive variation, and use an ecogenetic index to predict that it will maintain a global pest status under climate change. Understanding the genetic basis of climatic adaptation is essential for predicting species' responses to climate change. However, intraspecific variation of these responses arising from local adaptation remains ambiguous for most species. Here, we analyze genomic data from diamondback moth (Plutella xylostella) collected from 75 sites spanning six continents to reveal that climate-associated adaptive variation exhibits a roughly latitudinal pattern. By developing an eco-genetic index that combines genetic variation and physiological responses, we predict that most P. xylostella populations have high tolerance to projected future climates. Using genome editing, a key gene, PxCad, emerged from our analysis as functionally temperature responsive. Our results demonstrate that P. xylostella is largely capable of tolerating future climates in most of the world and will remain a global pest beyond 2050. This work improves our understanding of adaptive variation along environmental gradients, and advances pest forecasting by highlighting the genetic basis for local climate adaptation.
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