Population genetic patterns of a mangrove‐associated frog reveal its colonization history and habitat connectivity

Zheng, Yitao; Zhang, Shan; Lu, Qi; Zhang, Siyu; Li-jun, Wang; Hong, Mingsheng; Nguyen, Truong Q.; Zhao, Jindong; Meng, Yao

doi:10.1111/ddi.13304

Cited by 7 publications

(6 citation statements)

References 97 publications

(131 reference statements)

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“…Indeed, genetic differentiation between populations in treefrogs was likely to result from geographic barriers, demographic processes, and selective processes affecting genetic diversity distribution over the landscape. However, the genetic exchange between the closed populations within each group was likely to occur in treefrogs; the reduction in genetic exchange is consistent with the findings that a lack of gene flow barriers between the closed populations is reported in species of frogs (Guo et al 2016;Zheng et al 2021;Jin et al 2022). Indeed, we found that there is no genetic differentiation between populations within the same geographic region.…”

Section: Discussionsupporting

confidence: 91%

Genomic differentiation with isolation by distance along a latitudinal gradient in the spotted‐leg treefrogPolypedates megacephalus

2022

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The patterns of isolation by distance (IBD) entailing increased genetic differentiation among populations have aroused extensive concerns for evolutionary biologists. Although the IBD may act on spatial processes contributing to the genetic differentiation among populations in anuran species, the factors shaping the IBD of frogs among populations in natural systems are largely unknown. Here, we studied the genetic differentiation among six populations with 24 individuals of the spotted‐leg treefrog along a latitudinal gradient (1860.31 km) based on 1020 single nucleotide polymorphisms from restriction site‐associated DNA sequencing. The results showed that the genetic diversity differed significantly among populations and that the insular populations had higher genetic diversity than the mainland populations. Furthermore, we also found a significant genetic differentiation among populations (FST = 0.277) and no sign of inbreeding (FUNI = −0.145). The IBD was detected for all populations, and a higher degree of the IBD was indicated when controlling for the effects of the isolation between Hainan and mainland populations caused by the Qiongzhou Strait. Our findings suggest that the form of the Qiongzhou Strait plays a key role in shaping the genetic diversity and population differentiation in treefrogs.

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Section: Discussionsupporting

confidence: 91%

Genomic differentiation with isolation by distance along a latitudinal gradient in the spotted‐leg treefrogPolypedates megacephalus

2022

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“…In particular, small effective population sizes ( N e ) can lead to loss of diversity and inbreeding, which can also decrease the populations' adaptive potential. Levels of genetic diversity and patterns of population differentiation in many amphibians have now been successfully assessed using genetic markers, typically microsatellites (Andersen et al., 2004; Beebee, 2005; Burns et al., 2004; Jehle et al., 2005; Nair et al., 2012; Nair et al., 2012; Yang et al., 2016; Zheng et al., 2021). As such, these studies have typically been limited to a few genetic loci, although studies based on a larger number of markers have started to emerge (e.g., Funk et al., 2018; Guo, Lu, et al., 2016; Hardy et al., 2021; Thörn et al., 2021).…”

Section: Introductionmentioning

confidence: 99%

Genomic evidence for adaptive differentiation amongMicrohyla fissipespopulations: Implications for conservation

Jin

Liao

Merilä

2021

Diversity and Distributions

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Amphibians are considered to be good indicators of environmental changes because they depend on both terrestrial and aquatic environments to complete their life cycles (Blaustein et al., 1994).Due to their vulnerability to numerous environmental stressors, population declines and species extinctions among amphibians are common across the globe. Of the 7,219 currently recognized amphibian species, about 33.87% are classified as vulnerable, endangered or critically endangered according to the red list maintained by the International Union for Conservation of Nature (IUCN) (IUCN, 2020). In fact, amphibians have been estimated to be more

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“…Pleistocene sea level fluctuations are one of the prevailing paradigms of diversification of land vertebrates—via sea level vicariance—in Southeast Asia 113 , 114 . Phylogeographic patterns that temporally coincide with sea-level minima and maxima have been observed in spiders 115 , freshwater fish 116 , 117 , birds 118 , frogs 119 , 120 , gekkonid lizards 121 , and shrews 122 . However, inland geological influences are a more likely explanation for some taxa.…”

Section: Discussionmentioning

confidence: 93%

Integrative methods reveal multiple drivers of diversification in rice paddy snakes

Bernstein,

Voris,

Stuart

et al. 2024

Sci Rep

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Divergence dating analyses in systematics provide a framework to develop and test biogeographic hypotheses regarding speciation. However, as molecular datasets grow from multilocus to genomic, sample sizes decrease due to computational burdens, and the testing of fine-scale biogeographic hypotheses becomes difficult. In this study, we use coalescent demographic models to investigate the diversification of poorly known rice paddy snakes from Southeast Asia (Homalopsidae: Hypsiscopus), which have conflicting dates of origin based on previous studies. We use coalescent modeling to test the hypothesis that Hypsiscopus diversified 2.5 mya during the Khorat Plateau uplift in Thailand. Additionally, we use ecological niche analyses to identify potential differences in the niche space of the two most widely distributed species in the past and present. Our results suggest Hypsiscopus diversified ~ 2.4 mya, supporting that the Khorat Plateau may have initiated the diversification of rice paddy snakes. We also find significant niche differentiation and shifts between species of Hypsiscopus, indicating that environmental differences may have sustained differentiation of this genus after the Khorat Plateau uplift. Our study expands on the diversification history of snakes in Southeast Asia, and highlights how results from smaller multilocus datasets can be useful in developing and testing biogeographic hypotheses alongside genomic datasets.

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Population genetic patterns of a mangrove‐associated frog reveal its colonization history and habitat connectivity

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 7 publications

References 97 publications

Genomic differentiation with isolation by distance along a latitudinal gradient in the spotted‐leg treefrogPolypedates megacephalus

Genomic differentiation with isolation by distance along a latitudinal gradient in the spotted‐leg treefrogPolypedates megacephalus

Genomic evidence for adaptive differentiation amongMicrohyla fissipespopulations: Implications for conservation

Integrative methods reveal multiple drivers of diversification in rice paddy snakes

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