Rapid evolution of Ophraella communa cold tolerance in new low-temperature environments

文献类型： 外文期刊

第一作者： Tian, Zhenqi

作者： Tian, Zhenqi;Chen, Guangmei;Zhang, Yan;Ma, Chao;Tian, Zhenya;Gao, Xuyuan;Chen, Hongsong;Guo, Jianying;Zhou, Zhongshi;Gao, Xuyuan;Chen, Hongsong

作者机构：

关键词： Cold tolerance; Cryoprotectant; Energy reserve; Hybridisation; Rapid evolution

期刊名称：JOURNAL OF PEST SCIENCE （ 影响因子：5.742； 五年影响因子：5.562 ）

ISSN： 1612-4758

年卷期： 2022 年 95 卷 3 期

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收录情况： SCI

摘要： Low winter temperatures severely stress newly arriving insect species. Adaptive evolutionary changes in cold tolerance can facilitate their establishment in new environments. Ambrosia artemisiifolia, a noxious invasive plant, occurs throughout China. Ophraella communa, a biological control agent of A. artemisiifolia, mainly occurs in southern China. However, in 2012, it established populations in Beijing (39.98 degrees N, 115.97 degrees E) following introduction from Laibin (23.62 degrees N, 109.37 degrees E), implying cold adaptation. The mechanisms underlying its rapid evolution of cold tolerance remain unknown. We investigated the levels of cryoprotectants and energy reserves in adult O. communa from two latitudes. In high-latitude insects, we found high trehalose, proline, glycerol, total sugar, and lipid levels; five potential genes (Tret1a, Tret1b, Tret1-2, P5CS, and GST), responsible for regulating cold tolerance and involved in trehalose transport, proline biosynthesis, and glutathione S-transferase activation, were highly expressed. These hybridisation changes could facilitate cold temperature adaptation. We demonstrate the genetic basis underlying rapid adaptation of cold tolerance in O. communa, explaining its extension to higher latitudes. Thus, specialist herbivores can follow host plants by adapting to new temperature environments via rapid genetic evolution.

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[1]Rapid evolution of Ophraella communa cold tolerance in new low-temperature environments. Tian, Zhenqi,Chen, Guangmei,Zhang, Yan,Ma, Chao,Tian, Zhenya,Gao, Xuyuan,Chen, Hongsong,Guo, Jianying,Zhou, Zhongshi,Gao, Xuyuan,Chen, Hongsong. 2022

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