Dietary and Sexual Correlates of Gut Microbiota in the Japanese Gecko, <i>Gekko japonicus</i> (Schlegel, 1836)

Numerous studies have demonstrated that multiple intrinsic and extrinsic factors shape the structure and composition of gut microbiota in a host. The disorder of the gut microbiota may trigger various host diseases. Here, we collected fecal samples from wild-caught Japanese geckos (<i>Gekko ja...

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Main Authors: Xin-Ru Jiang, Ying-Yu Dai, Yu-Rong Wang, Kun Guo, Yu Du, Jian-Fang Gao, Long-Hui Lin, Peng Li, Hong Li, Xiang Ji, Yan-Fu Qu
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/13/8/1365
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author Xin-Ru Jiang
Ying-Yu Dai
Yu-Rong Wang
Kun Guo
Yu Du
Jian-Fang Gao
Long-Hui Lin
Peng Li
Hong Li
Xiang Ji
Yan-Fu Qu
author_facet Xin-Ru Jiang
Ying-Yu Dai
Yu-Rong Wang
Kun Guo
Yu Du
Jian-Fang Gao
Long-Hui Lin
Peng Li
Hong Li
Xiang Ji
Yan-Fu Qu
author_sort Xin-Ru Jiang
collection DOAJ
description Numerous studies have demonstrated that multiple intrinsic and extrinsic factors shape the structure and composition of gut microbiota in a host. The disorder of the gut microbiota may trigger various host diseases. Here, we collected fecal samples from wild-caught Japanese geckos (<i>Gekko japonicus</i>) and captive conspecifics fed with mealworms (mealworm-fed geckos) and fruit flies (fly-fed geckos), aiming to examine the dietary and sexual correlates of the gut microbiota. We used 16S rRNA gene sequencing technology to determine the composition of the gut microbiota. The dominant phyla with a mean relative abundance higher than 10% were Verrucomicrobiota, Bacteroidota, and Firmicutes. Gut microbial community richness and diversity were higher in mealworm-fed geckos than in wild geckos. Neither community evenness nor beta diversity of gut microbiota differed among wild, mealworm-fed, and fly-fed geckos. The beta rather than alpha diversity of gut microbiota was sex dependent. Based on the relative abundance of gut bacteria and their gene functions, we concluded that gut microbiota contributed more significantly to the host’s metabolic and immune functions. A higher diversity of gut microbiota in mealworm-fed geckos could result from higher chitin content in insects of the order Coleoptera. This study not only provides basic information about the gut microbiota of <i>G. japonicus</i> but also shows that gut microbiota correlates with dietary habits and sex in the species.
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spelling doaj.art-69111d1cbfd04f8fa05e5f961dae93772023-11-17T18:00:47ZengMDPI AGAnimals2076-26152023-04-01138136510.3390/ani13081365Dietary and Sexual Correlates of Gut Microbiota in the Japanese Gecko, <i>Gekko japonicus</i> (Schlegel, 1836)Xin-Ru Jiang0Ying-Yu Dai1Yu-Rong Wang2Kun Guo3Yu Du4Jian-Fang Gao5Long-Hui Lin6Peng Li7Hong Li8Xiang Ji9Yan-Fu Qu10College of Life Sciences, Nanjing Normal University, Nanjing 210023, ChinaCollege of Life Sciences, Nanjing Normal University, Nanjing 210023, ChinaCollege of Life Sciences, Nanjing Normal University, Nanjing 210023, ChinaZhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, ChinaHainan Key Laboratory of Herpetological Research, College of Fisheries and Life Science, Hainan Tropical Ocean University, Sanya 572022, ChinaHerpetological Research Center, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, ChinaHerpetological Research Center, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, ChinaCollege of Life Sciences, Nanjing Normal University, Nanjing 210023, ChinaCollege of Life Sciences, Nanjing Normal University, Nanjing 210023, ChinaZhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Sciences, Wenzhou University, Wenzhou 325035, ChinaCollege of Life Sciences, Nanjing Normal University, Nanjing 210023, ChinaNumerous studies have demonstrated that multiple intrinsic and extrinsic factors shape the structure and composition of gut microbiota in a host. The disorder of the gut microbiota may trigger various host diseases. Here, we collected fecal samples from wild-caught Japanese geckos (<i>Gekko japonicus</i>) and captive conspecifics fed with mealworms (mealworm-fed geckos) and fruit flies (fly-fed geckos), aiming to examine the dietary and sexual correlates of the gut microbiota. We used 16S rRNA gene sequencing technology to determine the composition of the gut microbiota. The dominant phyla with a mean relative abundance higher than 10% were Verrucomicrobiota, Bacteroidota, and Firmicutes. Gut microbial community richness and diversity were higher in mealworm-fed geckos than in wild geckos. Neither community evenness nor beta diversity of gut microbiota differed among wild, mealworm-fed, and fly-fed geckos. The beta rather than alpha diversity of gut microbiota was sex dependent. Based on the relative abundance of gut bacteria and their gene functions, we concluded that gut microbiota contributed more significantly to the host’s metabolic and immune functions. A higher diversity of gut microbiota in mealworm-fed geckos could result from higher chitin content in insects of the order Coleoptera. This study not only provides basic information about the gut microbiota of <i>G. japonicus</i> but also shows that gut microbiota correlates with dietary habits and sex in the species.https://www.mdpi.com/2076-2615/13/8/1365ASVsdiet habit<i>Gekko japonicus</i>gut microbiotasex
spellingShingle Xin-Ru Jiang
Ying-Yu Dai
Yu-Rong Wang
Kun Guo
Yu Du
Jian-Fang Gao
Long-Hui Lin
Peng Li
Hong Li
Xiang Ji
Yan-Fu Qu
Dietary and Sexual Correlates of Gut Microbiota in the Japanese Gecko, <i>Gekko japonicus</i> (Schlegel, 1836)
Animals
ASVs
diet habit
<i>Gekko japonicus</i>
gut microbiota
sex
title Dietary and Sexual Correlates of Gut Microbiota in the Japanese Gecko, <i>Gekko japonicus</i> (Schlegel, 1836)
title_full Dietary and Sexual Correlates of Gut Microbiota in the Japanese Gecko, <i>Gekko japonicus</i> (Schlegel, 1836)
title_fullStr Dietary and Sexual Correlates of Gut Microbiota in the Japanese Gecko, <i>Gekko japonicus</i> (Schlegel, 1836)
title_full_unstemmed Dietary and Sexual Correlates of Gut Microbiota in the Japanese Gecko, <i>Gekko japonicus</i> (Schlegel, 1836)
title_short Dietary and Sexual Correlates of Gut Microbiota in the Japanese Gecko, <i>Gekko japonicus</i> (Schlegel, 1836)
title_sort dietary and sexual correlates of gut microbiota in the japanese gecko i gekko japonicus i schlegel 1836
topic ASVs
diet habit
<i>Gekko japonicus</i>
gut microbiota
sex
url https://www.mdpi.com/2076-2615/13/8/1365
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