Population Genomics of Agrotis Segetum Provide Insights into the Local Adaptive Evolution of Agricultural Pests

Overview

Journal BMC Biol

Publisher Biomed Central

Specialty Biology

Date 2024 Feb 20

PMID 38378556

Authors

Ping Wang

Minghui Jin

Chao Wu

Yan Peng

Yanjin He

Hanyue Wang

Yutao Xiao

Affiliations

Soon will be listed here.

Abstract

Background: The adaptive mechanisms of agricultural pests are the key to understanding the evolution of the pests and to developing new control strategies. However, there are few studies on the genetic basis of adaptations of agricultural pests. The turnip moth, Agrotis segetum (Lepidoptera: Noctuidae) is an important underground pest that affects a wide range of host plants and has a strong capacity to adapt to new environments. It is thus a good model for studying the adaptive evolution of pest species.

Results: We assembled a high-quality reference genome of A. segetum using PacBio reads. Then, we constructed a variation map of A. segetum by resequencing 98 individuals collected from six natural populations in China. The analysis of the population structure showed that all individuals were divided into four well-differentiated populations, corresponding to their geographical distribution. Selective sweep analysis and environmental association studies showed that candidate genes associated with local adaptation were functionally correlated with detoxification metabolism and glucose metabolism.

Conclusions: Our study of A. segetum has provided insights into the genetic mechanisms of local adaptation and evolution; it has also produced genetic resources for developing new pest management strategies.

Citing Articles

Attraction and aversion of noctuid moths to fermented food sources coordinated by olfactory receptors from distinct gene families.

Hou X, Zhang D, Zhao H, Liu Y, Lofstedt C, Wang G BMC Biol. 2025; 23(1):1.

PMID: 39757197 PMC: 11702115. DOI: 10.1186/s12915-024-02102-w.

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