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利用昆虫雷达、轨迹分析和线粒体 COI 序列确定中国吉林第三代东方黏虫的种群来源。

Population Source of Third-Generation Oriental Armyworm in Jilin, China, Determined by Entomology Radar, Trajectory Analysis, and Mitochondrial COI Sequences.

机构信息

Key Laboratory of Integrated Pest Management on Crops in Northeast, Ministry of Agriculture, Institute of Plant Protection, Jilin Academy of Agricultural Sciences, Gongzhuling 136100, China.

College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China.

出版信息

Environ Entomol. 2022 Jun 17;51(3):621-632. doi: 10.1093/ee/nvac020.

DOI:10.1093/ee/nvac020
PMID:35390144
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9205478/
Abstract

The armyworm, Mythimna separata (Walker) (Lepidoptera: Noctuidae), is an important polyphagous pest with a strong migratory ability. Recently, third-generation larvae have become an increasingly serious pest threat in Jilin Province of northeast China. To investigate the population source of this species, scanning entomological radar observations and insect mitochondrial cytochrome oxidase I (COI) genes were used in this study. Five main results were found: (1) The peak period in captured second-generation moths was from mid to late July. The temperature and wind speeds were optimum for the moths to have migrated. Strong southwesterly winds occurred during the peak migration period. (2) Radar observations indicated that most of the moths' migration took place at a height of 600 m, often in a dense layer which formed at heights of 350-800 m. (3) Analyses of adult ovarian development and larval haplotypes showed third-generation larvae were progeny of both locally produced progeny and immigrant moths. (4) Based on our back-tracking and haplotype analyses, immigration led to an outbreak originated in the same source area to the southwest. (5) Emigration of second-generation moths was confirmed by both radar observation and mtDNA analysis. Forward trajectories indicated that the moths were capable of immigrating far from their overwintering range. These results are useful for improving the forecasting systems of this insect pest species.

摘要

粘虫，Mythimna separata（Walker）（鳞翅目：夜蛾科），是一种具有强烈迁徙能力的重要多食性害虫。最近，第三代幼虫已成为中国东北地区吉林省日益严重的害虫威胁。为了调查该物种的种群来源，本研究采用扫描昆虫雷达观测和昆虫线粒体细胞色素氧化酶 I（COI）基因进行研究。主要发现了五个结果：（1）第二代蛾捕获的高峰期在 7 月中旬至下旬。温度和风速最适合蛾类迁徙。在高峰期，出现了强烈的西南风。（2）雷达观测表明，大多数蛾类的迁徙发生在 600 米的高度，通常在 350-800 米的高度形成密集层。（3）成虫卵巢发育和幼虫单倍型分析表明，第三代幼虫是本地产生的幼虫和迁徙蛾的后代。（4）根据我们的回溯和单倍型分析，移民导致了起源于西南同一来源地区的爆发。（5）雷达观测和 mtDNA 分析均证实了第二代蛾的迁出。轨迹分析表明，这些蛾类有能力从它们的越冬范围之外迁徙。这些结果有助于改善对这种昆虫害虫的预测系统。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/af26b5266024/nvac020_fig10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/3f223867ba8d/nvac020_fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/55d09bdea40b/nvac020_fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/019c8c96c338/nvac020_fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/e18783a7c5e0/nvac020_fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/4d9e462b2645/nvac020_fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/85927fb74afb/nvac020_fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/aef40085e136/nvac020_fig7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/7d73e483be15/nvac020_fig8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/1d8eb1c7352f/nvac020_fig9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/af26b5266024/nvac020_fig10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/3f223867ba8d/nvac020_fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/55d09bdea40b/nvac020_fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/019c8c96c338/nvac020_fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/e18783a7c5e0/nvac020_fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/4d9e462b2645/nvac020_fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/85927fb74afb/nvac020_fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/aef40085e136/nvac020_fig7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/7d73e483be15/nvac020_fig8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/1d8eb1c7352f/nvac020_fig9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ac12/9205478/af26b5266024/nvac020_fig10.jpg

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