Diversification outbreaks and dynamics of Asian leaf-litter frogs, genus Leptobrachella (Anura, Megophryidae), with the description of a new species from Guizhou Province, China
The uplift of the Qinghai-Tibet Plateau and the Indochina extrusion are two of the most prominent consequences of the India–Asia collision. These two geologic events greatly altered topography and drainage patterns that, in turn, affected the regional climate, the landscape and the evolution of biod...
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| Format: | Article |
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Pensoft Publishers
2025-02-01
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| Series: | Zoosystematics and Evolution |
| Online Access: | https://zse.pensoft.net/article/137392/download/pdf/ |
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| author | Tao Luo Zi-Fa Zhao Zhong-Lian Wang Chang-Ting Lan Ming-Yuan Xiao Huai-Qing Deng Ning Xiao Jiang Zhou |
| author_facet | Tao Luo Zi-Fa Zhao Zhong-Lian Wang Chang-Ting Lan Ming-Yuan Xiao Huai-Qing Deng Ning Xiao Jiang Zhou |
| author_sort | Tao Luo |
| collection | DOAJ |
| description | The uplift of the Qinghai-Tibet Plateau and the Indochina extrusion are two of the most prominent consequences of the India–Asia collision. These two geologic events greatly altered topography and drainage patterns that, in turn, affected the regional climate, the landscape and the evolution of biodiversity. Despite this, little is known about how orogeny and climate affect the evolution of biodiversity, especially the dynamics of diversification, including origins, peaks and endings. Here, we performed phylogenetic and biogeographic analyses of Leptobrachella distributed in Southeast Asia and southern China, based on mitochondrial 16S ribosomal RNA. The results revealed that Leptobrachella may be roughly divided into Clade I from south of the Indo-Burma and Clade II from central and northern Indo-Burma and southern China. We then investigated the diversification of Leptobrachella over time through biogeographic meta-analyses. We showed that the speciation of Leptobrachella was dominated by in situ diversification that was most likely associated with the uplift of the Qinghai–Tibet Plateau, the Indochina extrusion and the intensification of the Asian monsoon and that diversification may have been less influenced by temperature. In situ diversification experienced three small accelerated phases and one decelerated phase initiated at ~ 32 Ma, with a sharp increase at ~ 15 Ma, a peak at ~ 8.7 Ma and a gradual decline after ~ 6 Ma and the peaks of diversification were asynchronous in Southeast Asia and southern China. Our results suggest a three-phase scenario for the diversification of Leptobrachella, with periods of acceleration and deceleration at every stage, a pattern consistent with the Indochina extrusion, the uplift of the Qinghai–Tibet Plateau and the intensification of the Asian monsoon since the Oligocene. This study highlights how biogeographic meta-analyses can be utilised to estimate diversification history in taxa lacking sufficient molecular markers to quantify the impact of orogeny and climatic shifts on diversification processes. In addition, we also identified four undescribed species and described one new species, Leptobrachella xishuiensis sp. nov., from Xishui County, Guizhou Province, China. |
| format | Article |
| id | doaj-art-8c813f590b564b3cb862fff03ebdd9e4 |
| institution | Kabale University |
| issn | 1860-0743 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Pensoft Publishers |
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| series | Zoosystematics and Evolution |
| spelling | doaj-art-8c813f590b564b3cb862fff03ebdd9e42025-02-06T08:30:48ZengPensoft PublishersZoosystematics and Evolution1860-07432025-02-01101122324310.3897/zse.101.137392137392Diversification outbreaks and dynamics of Asian leaf-litter frogs, genus Leptobrachella (Anura, Megophryidae), with the description of a new species from Guizhou Province, ChinaTao Luo0Zi-Fa Zhao1Zhong-Lian Wang2Chang-Ting Lan3Ming-Yuan Xiao4Huai-Qing Deng5Ning Xiao6Jiang Zhou7Yunnan UniversityGuizhou Normal UniversityGuizhou Normal UniversityGuizhou Normal UniversityGuizhou Normal UniversityGuizhou Normal UniversityGuiyang Healthcare Vocational UniversityGuizhou Normal UniversityThe uplift of the Qinghai-Tibet Plateau and the Indochina extrusion are two of the most prominent consequences of the India–Asia collision. These two geologic events greatly altered topography and drainage patterns that, in turn, affected the regional climate, the landscape and the evolution of biodiversity. Despite this, little is known about how orogeny and climate affect the evolution of biodiversity, especially the dynamics of diversification, including origins, peaks and endings. Here, we performed phylogenetic and biogeographic analyses of Leptobrachella distributed in Southeast Asia and southern China, based on mitochondrial 16S ribosomal RNA. The results revealed that Leptobrachella may be roughly divided into Clade I from south of the Indo-Burma and Clade II from central and northern Indo-Burma and southern China. We then investigated the diversification of Leptobrachella over time through biogeographic meta-analyses. We showed that the speciation of Leptobrachella was dominated by in situ diversification that was most likely associated with the uplift of the Qinghai–Tibet Plateau, the Indochina extrusion and the intensification of the Asian monsoon and that diversification may have been less influenced by temperature. In situ diversification experienced three small accelerated phases and one decelerated phase initiated at ~ 32 Ma, with a sharp increase at ~ 15 Ma, a peak at ~ 8.7 Ma and a gradual decline after ~ 6 Ma and the peaks of diversification were asynchronous in Southeast Asia and southern China. Our results suggest a three-phase scenario for the diversification of Leptobrachella, with periods of acceleration and deceleration at every stage, a pattern consistent with the Indochina extrusion, the uplift of the Qinghai–Tibet Plateau and the intensification of the Asian monsoon since the Oligocene. This study highlights how biogeographic meta-analyses can be utilised to estimate diversification history in taxa lacking sufficient molecular markers to quantify the impact of orogeny and climatic shifts on diversification processes. In addition, we also identified four undescribed species and described one new species, Leptobrachella xishuiensis sp. nov., from Xishui County, Guizhou Province, China.https://zse.pensoft.net/article/137392/download/pdf/ |
| spellingShingle | Tao Luo Zi-Fa Zhao Zhong-Lian Wang Chang-Ting Lan Ming-Yuan Xiao Huai-Qing Deng Ning Xiao Jiang Zhou Diversification outbreaks and dynamics of Asian leaf-litter frogs, genus Leptobrachella (Anura, Megophryidae), with the description of a new species from Guizhou Province, China Zoosystematics and Evolution |
| title | Diversification outbreaks and dynamics of Asian leaf-litter frogs, genus Leptobrachella (Anura, Megophryidae), with the description of a new species from Guizhou Province, China |
| title_full | Diversification outbreaks and dynamics of Asian leaf-litter frogs, genus Leptobrachella (Anura, Megophryidae), with the description of a new species from Guizhou Province, China |
| title_fullStr | Diversification outbreaks and dynamics of Asian leaf-litter frogs, genus Leptobrachella (Anura, Megophryidae), with the description of a new species from Guizhou Province, China |
| title_full_unstemmed | Diversification outbreaks and dynamics of Asian leaf-litter frogs, genus Leptobrachella (Anura, Megophryidae), with the description of a new species from Guizhou Province, China |
| title_short | Diversification outbreaks and dynamics of Asian leaf-litter frogs, genus Leptobrachella (Anura, Megophryidae), with the description of a new species from Guizhou Province, China |
| title_sort | diversification outbreaks and dynamics of asian leaf litter frogs genus leptobrachella anura megophryidae with the description of a new species from guizhou province china |
| url | https://zse.pensoft.net/article/137392/download/pdf/ |
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