The Correlation between the Gut Microbiota of <i>Endoclita signifer</i> (Lepidoptera, Hepialidae) Larvae and Their Host Preferences

Insects’ gut microbiota plays a crucial role in their host selection, adaptation, and plasticity. This study explored the impact of gut bacteria on the adaptation of host selection under different stresses (diverse feeding preferences and no feeding preferences). The seventh instar <i>E. signi...

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Main Authors: Jintao Lu, Xiaoyan Su, Zhende Yang, Ping Hu
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Insects
Subjects:
Online Access:https://www.mdpi.com/2075-4450/14/12/919
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author Jintao Lu
Xiaoyan Su
Zhende Yang
Ping Hu
author_facet Jintao Lu
Xiaoyan Su
Zhende Yang
Ping Hu
author_sort Jintao Lu
collection DOAJ
description Insects’ gut microbiota plays a crucial role in their host selection, adaptation, and plasticity. This study explored the impact of gut bacteria on the adaptation of host selection under different stresses (diverse feeding preferences and no feeding preferences). The seventh instar <i>E. signifer</i> larvae were artificially transferred from the most-selected host <i>E. grandis</i> × <i>E. urophylla</i> (Es) to more preferred hosts, <i>M. apelta</i> (Ma), as well as the non-preferred host, <i>B. papyrifera</i> (Bp). We then obtained the larval gut of three different feeding preference hosts. The gut bacterial DNA was sequenced and analyzed based on 16S rRNA. There were significant differences in the composition of dominant gut bacteria between Es with Ma and Bp, but without significant differences between Ma and Bp. In the process, <i>Burkholderia</i> and <i>Microbacillus</i> with degrading pesticides had significant changes, and <i>Enterococcus</i> with insect gut probiotics also had significant changes. The presence of enterococcus may be one of the main causes of intestinal microbiota changes before and after host transfer. Notably, when the feeding of <i>E. signifer</i> changes, the complex connections that exist between gut bacteria also change. Additionally, there was a negative correlation between the feeding preferences of <i>E. signifer</i> and the metabolic functions of their gut bacteria. This study provided a theoretical basis for the prediction and use of gut bacteria to interfere with the feeding of <i>E. signifer</i>.
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spelling doaj.art-13dc3bf984d14b2c909f82c6a154a7892023-12-22T14:16:13ZengMDPI AGInsects2075-44502023-12-01141291910.3390/insects14120919The Correlation between the Gut Microbiota of <i>Endoclita signifer</i> (Lepidoptera, Hepialidae) Larvae and Their Host PreferencesJintao Lu0Xiaoyan Su1Zhende Yang2Ping Hu3Guangxi Colleges and Universities Key Laboratory for Cultivation and Utilization of Subtropical Forest Plantation, Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning 530004, ChinaLiu Wan Forest Farm of Guangxi, Yulin 537899, ChinaGuangxi Colleges and Universities Key Laboratory for Cultivation and Utilization of Subtropical Forest Plantation, Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning 530004, ChinaGuangxi Colleges and Universities Key Laboratory for Cultivation and Utilization of Subtropical Forest Plantation, Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning 530004, ChinaInsects’ gut microbiota plays a crucial role in their host selection, adaptation, and plasticity. This study explored the impact of gut bacteria on the adaptation of host selection under different stresses (diverse feeding preferences and no feeding preferences). The seventh instar <i>E. signifer</i> larvae were artificially transferred from the most-selected host <i>E. grandis</i> × <i>E. urophylla</i> (Es) to more preferred hosts, <i>M. apelta</i> (Ma), as well as the non-preferred host, <i>B. papyrifera</i> (Bp). We then obtained the larval gut of three different feeding preference hosts. The gut bacterial DNA was sequenced and analyzed based on 16S rRNA. There were significant differences in the composition of dominant gut bacteria between Es with Ma and Bp, but without significant differences between Ma and Bp. In the process, <i>Burkholderia</i> and <i>Microbacillus</i> with degrading pesticides had significant changes, and <i>Enterococcus</i> with insect gut probiotics also had significant changes. The presence of enterococcus may be one of the main causes of intestinal microbiota changes before and after host transfer. Notably, when the feeding of <i>E. signifer</i> changes, the complex connections that exist between gut bacteria also change. Additionally, there was a negative correlation between the feeding preferences of <i>E. signifer</i> and the metabolic functions of their gut bacteria. This study provided a theoretical basis for the prediction and use of gut bacteria to interfere with the feeding of <i>E. signifer</i>.https://www.mdpi.com/2075-4450/14/12/919<i>Endoclita signifer</i>gut microbiotahigh-throughput sequencingtransfer host
spellingShingle Jintao Lu
Xiaoyan Su
Zhende Yang
Ping Hu
The Correlation between the Gut Microbiota of <i>Endoclita signifer</i> (Lepidoptera, Hepialidae) Larvae and Their Host Preferences
Insects
<i>Endoclita signifer</i>
gut microbiota
high-throughput sequencing
transfer host
title The Correlation between the Gut Microbiota of <i>Endoclita signifer</i> (Lepidoptera, Hepialidae) Larvae and Their Host Preferences
title_full The Correlation between the Gut Microbiota of <i>Endoclita signifer</i> (Lepidoptera, Hepialidae) Larvae and Their Host Preferences
title_fullStr The Correlation between the Gut Microbiota of <i>Endoclita signifer</i> (Lepidoptera, Hepialidae) Larvae and Their Host Preferences
title_full_unstemmed The Correlation between the Gut Microbiota of <i>Endoclita signifer</i> (Lepidoptera, Hepialidae) Larvae and Their Host Preferences
title_short The Correlation between the Gut Microbiota of <i>Endoclita signifer</i> (Lepidoptera, Hepialidae) Larvae and Their Host Preferences
title_sort correlation between the gut microbiota of i endoclita signifer i lepidoptera hepialidae larvae and their host preferences
topic <i>Endoclita signifer</i>
gut microbiota
high-throughput sequencing
transfer host
url https://www.mdpi.com/2075-4450/14/12/919
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