Evolution of the <i>Colocasiomyia gigantea</i> Species Group (Diptera: Drosophilidae): Phylogeny, Biogeography and Shift of Host Use
The <i>gigantea</i> species group of the genus <i>Colocasiomyia</i> de Meijere (Diptera: Drosophilidae) is among the four aroid-breeding species groups in this genus; however, it differs from the remaining three groups in the host use: all the flies in this group use plants f...
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MDPI AG
2022-07-01
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| Series: | Insects |
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| Online Access: | https://www.mdpi.com/2075-4450/13/7/647 |
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| author | Ling Xiao Nan-Nan Li Long-Kun Yang Jia-Ling Li Jian-Jun Gao |
| author_facet | Ling Xiao Nan-Nan Li Long-Kun Yang Jia-Ling Li Jian-Jun Gao |
| author_sort | Ling Xiao |
| collection | DOAJ |
| description | The <i>gigantea</i> species group of the genus <i>Colocasiomyia</i> de Meijere (Diptera: Drosophilidae) is among the four aroid-breeding species groups in this genus; however, it differs from the remaining three groups in the host use: all the flies in this group use plants from the subfamily Monsteroideae instead of from the subfamily Aroideae. So far, we have not resolved the phylogenetic relationship within this group, making it difficult to trace its geographical origin, pattern of species diversification and history of host plant use. In this study, we reconstructed the phylogenetic relationships within the <i>C. gigantea</i> group using DNA sequences of eight (two mitochondrial and six nuclear) gene markers, and we inferred the ancestral areas and host plants of the group based on the resulting phylogeny. According to the results, the <i>C. gigantea</i> group may have diverged from its sister group (i.e., the <i>C. cristata</i> group) through vicariance between the northeastern Oriental region and Sundaland + Wallacea, and the subsequent diversification of the <i>C. gigantea</i> group occurred mostly in the northeastern Oriental region, although an Oriental-to-Sundaland dispersal was followed by vicariance between these two areas, which finally gave rise to the <i>C. gigantea-C. scindapsae</i> lineage in the latter area. We inferred the most likely ancestral host plant of the <i>C. gigantea</i> group to be of the genus <i>Rhaphidophora</i> Hassk, with possible subsequent shifts to <i>Scindapsus</i> Schott and/or <i>Epipremnum</i> Schott plants. We discuss the potential for the egg filaments in the <i>C. gigantea</i> group to be used as a model system for comparative studies in pollination mutualism and developmental genetics concerning tubulogenesis. |
| first_indexed | 2024-03-09T03:20:42Z |
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| institution | Directory Open Access Journal |
| issn | 2075-4450 |
| language | English |
| last_indexed | 2024-03-09T03:20:42Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Insects |
| spelling | doaj.art-b1312d2b26ad40cabadb858ae370a6ea2023-12-03T15:11:57ZengMDPI AGInsects2075-44502022-07-0113764710.3390/insects13070647Evolution of the <i>Colocasiomyia gigantea</i> Species Group (Diptera: Drosophilidae): Phylogeny, Biogeography and Shift of Host UseLing Xiao0Nan-Nan Li1Long-Kun Yang2Jia-Ling Li3Jian-Jun Gao4Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Yunnan University, Kunming 650500, ChinaSchool of Forestry, Southwest Forestry University, Kunming 650224, ChinaSchool of Forestry, Southwest Forestry University, Kunming 650224, ChinaWuzhishan Division, National Park of Hainan Tropical Rainforest, Wuzhishan 572215, ChinaYunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Yunnan University, Kunming 650500, ChinaThe <i>gigantea</i> species group of the genus <i>Colocasiomyia</i> de Meijere (Diptera: Drosophilidae) is among the four aroid-breeding species groups in this genus; however, it differs from the remaining three groups in the host use: all the flies in this group use plants from the subfamily Monsteroideae instead of from the subfamily Aroideae. So far, we have not resolved the phylogenetic relationship within this group, making it difficult to trace its geographical origin, pattern of species diversification and history of host plant use. In this study, we reconstructed the phylogenetic relationships within the <i>C. gigantea</i> group using DNA sequences of eight (two mitochondrial and six nuclear) gene markers, and we inferred the ancestral areas and host plants of the group based on the resulting phylogeny. According to the results, the <i>C. gigantea</i> group may have diverged from its sister group (i.e., the <i>C. cristata</i> group) through vicariance between the northeastern Oriental region and Sundaland + Wallacea, and the subsequent diversification of the <i>C. gigantea</i> group occurred mostly in the northeastern Oriental region, although an Oriental-to-Sundaland dispersal was followed by vicariance between these two areas, which finally gave rise to the <i>C. gigantea-C. scindapsae</i> lineage in the latter area. We inferred the most likely ancestral host plant of the <i>C. gigantea</i> group to be of the genus <i>Rhaphidophora</i> Hassk, with possible subsequent shifts to <i>Scindapsus</i> Schott and/or <i>Epipremnum</i> Schott plants. We discuss the potential for the egg filaments in the <i>C. gigantea</i> group to be used as a model system for comparative studies in pollination mutualism and developmental genetics concerning tubulogenesis.https://www.mdpi.com/2075-4450/13/7/647DNA sequencegeographical distributionmorphologydiversificationsister-group analysisegg filament |
| spellingShingle | Ling Xiao Nan-Nan Li Long-Kun Yang Jia-Ling Li Jian-Jun Gao Evolution of the <i>Colocasiomyia gigantea</i> Species Group (Diptera: Drosophilidae): Phylogeny, Biogeography and Shift of Host Use Insects DNA sequence geographical distribution morphology diversification sister-group analysis egg filament |
| title | Evolution of the <i>Colocasiomyia gigantea</i> Species Group (Diptera: Drosophilidae): Phylogeny, Biogeography and Shift of Host Use |
| title_full | Evolution of the <i>Colocasiomyia gigantea</i> Species Group (Diptera: Drosophilidae): Phylogeny, Biogeography and Shift of Host Use |
| title_fullStr | Evolution of the <i>Colocasiomyia gigantea</i> Species Group (Diptera: Drosophilidae): Phylogeny, Biogeography and Shift of Host Use |
| title_full_unstemmed | Evolution of the <i>Colocasiomyia gigantea</i> Species Group (Diptera: Drosophilidae): Phylogeny, Biogeography and Shift of Host Use |
| title_short | Evolution of the <i>Colocasiomyia gigantea</i> Species Group (Diptera: Drosophilidae): Phylogeny, Biogeography and Shift of Host Use |
| title_sort | evolution of the i colocasiomyia gigantea i species group diptera drosophilidae phylogeny biogeography and shift of host use |
| topic | DNA sequence geographical distribution morphology diversification sister-group analysis egg filament |
| url | https://www.mdpi.com/2075-4450/13/7/647 |
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