Fine-Scale Genetic Structure of <i>Curculio chinensis</i> (Coleoptera: Curculionidae) Based on Mitochondrial <i>COI</i>: The Role of Host Specificity and Spatial Distance
The Camellia weevil, <i>Curculio chinensis</i> (Chevrolat, 1978), is a dominant oligophagous pest that bores into the fruit of oil-tea <i>Camellia</i>. Genetic differentiation among populations in various hosts can easily occur, which hinders research on pest management. In t...
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MDPI AG
2024-02-01
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| Series: | Insects |
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| Online Access: | https://www.mdpi.com/2075-4450/15/2/116 |
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| author | Li Zhang Fuping Wang Jiaxi Wu Sicheng Ye Ye Xu Yanan Liu |
| author_facet | Li Zhang Fuping Wang Jiaxi Wu Sicheng Ye Ye Xu Yanan Liu |
| author_sort | Li Zhang |
| collection | DOAJ |
| description | The Camellia weevil, <i>Curculio chinensis</i> (Chevrolat, 1978), is a dominant oligophagous pest that bores into the fruit of oil-tea <i>Camellia</i>. Genetic differentiation among populations in various hosts can easily occur, which hinders research on pest management. In this study, the genetic structure, genetic diversity, and phylogenetic structure of local <i>C. chinensis</i> populations were examined using 147 individuals (from 6 localities in Jiangxi), based on 2 mitochondrial <i>COI</i> markers. Results indicated that the <i>C. chinensis</i> population in Jiangxi exhibits a high haplotype diversity, especially for the populations from <i>Cam. meiocarpa</i> plantations. Structural differentiation was observed between Haplogroup 1 (73 individuals from Ganzhou, Jian, and Pingxiang) in the monoculture plantations of <i>Cam. meiocarpa</i> and Haplogroup 2 (75 individuals from Pingxiang and Jiujiang) in <i>Cam. oleifera</i>. Two haplogroups have recently undergone a demographic expansion, and Haplogroup 1 has shown a higher number of effective migrants than Haplogroup 2. This suggests that <i>C. chinensis</i> has been spreading from <i>Cam. meiocarpa</i> plantations to other oil-tea <i>Camellia</i>, such as <i>Cam. oleifera</i>. The increased cultivation of oil-tea <i>Camellia</i> in Jiangxi has contributed to a unique genetic structure within the <i>C. chinensis</i> population. This has, in turn, expanded the distribution of <i>C. chinensis</i> and increased migration between populations. |
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| language | English |
| last_indexed | 2024-03-07T22:27:42Z |
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| spelling | doaj.art-780d0c9e250b4e5b91bdc906ec1e53ec2024-02-23T15:21:32ZengMDPI AGInsects2075-44502024-02-0115211610.3390/insects15020116Fine-Scale Genetic Structure of <i>Curculio chinensis</i> (Coleoptera: Curculionidae) Based on Mitochondrial <i>COI</i>: The Role of Host Specificity and Spatial DistanceLi Zhang0Fuping Wang1Jiaxi Wu2Sicheng Ye3Ye Xu4Yanan Liu5Institute of Jiangxi Oil-Tea Camellia, Jiujiang University, Jiujiang 332005, ChinaInstitute of Jiangxi Oil-Tea Camellia, Jiujiang University, Jiujiang 332005, ChinaInstitute of Jiangxi Oil-Tea Camellia, Jiujiang University, Jiujiang 332005, ChinaInstitute of Jiangxi Oil-Tea Camellia, Jiujiang University, Jiujiang 332005, ChinaSchool of Agricultural Science, Jiangxi Agricultural University, Nanchang 330045, ChinaInstitute of Jiangxi Oil-Tea Camellia, Jiujiang University, Jiujiang 332005, ChinaThe Camellia weevil, <i>Curculio chinensis</i> (Chevrolat, 1978), is a dominant oligophagous pest that bores into the fruit of oil-tea <i>Camellia</i>. Genetic differentiation among populations in various hosts can easily occur, which hinders research on pest management. In this study, the genetic structure, genetic diversity, and phylogenetic structure of local <i>C. chinensis</i> populations were examined using 147 individuals (from 6 localities in Jiangxi), based on 2 mitochondrial <i>COI</i> markers. Results indicated that the <i>C. chinensis</i> population in Jiangxi exhibits a high haplotype diversity, especially for the populations from <i>Cam. meiocarpa</i> plantations. Structural differentiation was observed between Haplogroup 1 (73 individuals from Ganzhou, Jian, and Pingxiang) in the monoculture plantations of <i>Cam. meiocarpa</i> and Haplogroup 2 (75 individuals from Pingxiang and Jiujiang) in <i>Cam. oleifera</i>. Two haplogroups have recently undergone a demographic expansion, and Haplogroup 1 has shown a higher number of effective migrants than Haplogroup 2. This suggests that <i>C. chinensis</i> has been spreading from <i>Cam. meiocarpa</i> plantations to other oil-tea <i>Camellia</i>, such as <i>Cam. oleifera</i>. The increased cultivation of oil-tea <i>Camellia</i> in Jiangxi has contributed to a unique genetic structure within the <i>C. chinensis</i> population. This has, in turn, expanded the distribution of <i>C. chinensis</i> and increased migration between populations.https://www.mdpi.com/2075-4450/15/2/116<i>Curculio chinensis</i>fruit-boring pestgenetic structure<i>COI</i>oil-tea <i>Camellia</i> |
| spellingShingle | Li Zhang Fuping Wang Jiaxi Wu Sicheng Ye Ye Xu Yanan Liu Fine-Scale Genetic Structure of <i>Curculio chinensis</i> (Coleoptera: Curculionidae) Based on Mitochondrial <i>COI</i>: The Role of Host Specificity and Spatial Distance Insects <i>Curculio chinensis</i> fruit-boring pest genetic structure <i>COI</i> oil-tea <i>Camellia</i> |
| title | Fine-Scale Genetic Structure of <i>Curculio chinensis</i> (Coleoptera: Curculionidae) Based on Mitochondrial <i>COI</i>: The Role of Host Specificity and Spatial Distance |
| title_full | Fine-Scale Genetic Structure of <i>Curculio chinensis</i> (Coleoptera: Curculionidae) Based on Mitochondrial <i>COI</i>: The Role of Host Specificity and Spatial Distance |
| title_fullStr | Fine-Scale Genetic Structure of <i>Curculio chinensis</i> (Coleoptera: Curculionidae) Based on Mitochondrial <i>COI</i>: The Role of Host Specificity and Spatial Distance |
| title_full_unstemmed | Fine-Scale Genetic Structure of <i>Curculio chinensis</i> (Coleoptera: Curculionidae) Based on Mitochondrial <i>COI</i>: The Role of Host Specificity and Spatial Distance |
| title_short | Fine-Scale Genetic Structure of <i>Curculio chinensis</i> (Coleoptera: Curculionidae) Based on Mitochondrial <i>COI</i>: The Role of Host Specificity and Spatial Distance |
| title_sort | fine scale genetic structure of i curculio chinensis i coleoptera curculionidae based on mitochondrial i coi i the role of host specificity and spatial distance |
| topic | <i>Curculio chinensis</i> fruit-boring pest genetic structure <i>COI</i> oil-tea <i>Camellia</i> |
| url | https://www.mdpi.com/2075-4450/15/2/116 |
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