The influence of riverine barriers on phylogeographic patterns of Malagasy reed frogs (Heterixalus)

Gehring, Philip-Sebastian; Pabijan, Maciej; Randrianirina, Jasmin E.; Glaw, Frank; Vences, Miguel

doi:10.1016/j.ympev.2012.05.018

Cited by 37 publications

(28 citation statements)

References 74 publications

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“…The fact that the Andranovolo haplotype does not cluster with the Mananjary/Ambohimiarina haplotypes might suggest two separate instances of cross-river migration. The Mangoro river therefore does not seem to constitute a barrier to gene flow and dispersal of these lizards, different from the situation in at least some amphibians (Gehring et al 2012a). This agrees with data on Amazonian Mabuya (Miralles & Carranza 2010) where rivers were found to be dispersal corridors in some cases (M. altamazonica and M. bistriata), while they do not constitute strict geographical barriers for others (e.g., M. nigropunctata species complex).…”

Section: Resultsmentioning

confidence: 81%

“…Given the high molecular variation found especially within T. gravenhorstii (Boumans et al 2007) it might be suspected that they represent species complexes, as has been observed with other widespread Malagasy reptiles thought to occur over different ecoregions in Madagascar (e.g., Raxworthy & Nussbaum 2006;Raxworthy et al 2007;Rocha et al 2010;Florio et al 2012;Gehring et al 2012aGehring et al , 2012b.…”

Section: Introductionmentioning

confidence: 86%

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DNA barcoding assessment of genetic variation in two widespread skinks from Madagascar, Trachylepis elegans and T. gravenhorstii (Squamata: Scincidae)

Vences¹,

Lima²,

Miralles³

et al. 2014

Zootaxa

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Trachylepis elegans and T. gravenhorstii are two of the most widespread reptiles in Madagascar, inhabiting a wide variety of habitats. Previous studies have indicated a considerable mitochondrial DNA (mtDNA) variation within these species, but the geographic distribution of the major haplotype lineages is poorly known. Herein we analyse the phylogeography of these lizards based on 107 sequences of the mitochondrial cytochrome oxidase subunit I gene, 101 of which newly determined. As in previous mtDNA assessments, T. elegans and T. gravenhorstii were not reciprocally monophyletic, although recent analyses including nuclear markers indicated their probable monophyly, respectively. The main lineages within T. gravenhorstii were found in strict allopatry and could be divided into a subclade of roughly northern and eastern distribution (lineages 1 and 2) and a subclade of roughly southern and western distribution (lineages 3, 4a, 4b, and 5, plus T. elegans). Our data serve to identify more precisely the probable contact zones among T. gravenhorstii lineages. The two main mtDNA clades (represented by lineages 2 and 3, respectively) can be expected to come into close contact in the area of the upper Mangoro river and Alaotra Lake, and (lineages 2 and 4a) in the Southern Central East between Mananjary and Ranomafana. Future studies intensively sampling these contact zones have the potential to assess hybridization and admixture among these lineages, and to test whether they are deep conspecific lineages of T. gravenhorstii as currently understood, or might represent distinct species.

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Section: Resultsmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 86%

DNA barcoding assessment of genetic variation in two widespread skinks from Madagascar, Trachylepis elegans and T. gravenhorstii (Squamata: Scincidae)

Vences¹,

Lima²,

Miralles³

et al. 2014

Zootaxa

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“…at the phylogeographic level, and especially in arid seasonal western Madagascar, where the effect of past climate changes on forest vegetation might have been more severe. This may explain why several other studies focusing on interspecific divergences and including eastern Madagascan taxa found an inadequate match between current distributions and Wilmé's areas of endemism Gehring et al, 2012; but see Pearson and Raxworthy, 2009). In L. labrosum, the ancestral area of clade N coincides with the northern bank of the Mahavavy River, that of W1 with the Betsiboka River, those of W2 and W3 are located north and south of the Tsiribihina River, and that of SC1 + SC2 is on the southern bank of the Onilahy River.…”

Section: Multiple Regional Refugia and Demographic Expansionmentioning

confidence: 96%

Phylogeography of the arid-adapted Malagasy bullfrog, Laliostoma labrosum, influenced by past connectivity and habitat stability

Pabijan

Brown

Chan

et al. 2015

Molecular Phylogenetics and Evolution

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“…It is well known that rivers serve as geographical barriers for terrestrial vertebrates such as reptiles, birds, and mammals (Wallace 1852, Gascon et al 1996, Hayes and Sewlal 2004, and several case studies have dealt with the influence of rivers on the distribution and genetic structure for amphibians, a semiaquatic group (see Gascon et al 1998, Lougheed et al 1999, Gehring et al 2012, Yuan et al 2016. Future studies should examine the role of major rivers of the Brazilian east Atlantic basin in the evolutionary history of P. burmeisteri and P. bahiana.…”

Section: Advertisement Call Of Phyllomedusa Burmeisterimentioning

confidence: 99%

An acoustic and morphometric evaluation of the geographic distribution of Phyllomedusa burmeisteri (Anura: Phyllomedusidae), with comments on P. bahiana

et al. 2018

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An acoustic and morphometric evaluation of the geographic distribution of Phyllomedusa burmeisteri (Anura: Phyllomedusidae), with comments on P. bahiana. A recent study, based on phylogenetic and phylogeographic multilocus approaches, detected two evolutionary units (BUR and BUR-RJ) within the range of P. burmeisteri. BUR has a wide distribution, whereas BUR-RJ is restricted to a small area coincident with the Serra do Mar mountain range in the Brazilian state of Rio de Janeiro. We evaluate if acoustic and morphometric data support these two major clades within P. burmeisteri that were proposed using molecular evidence. We also provide for the first time detailed morphometric data for adult males of P. burmeisteri (including topotypes) and the holotype of P. bahiana, and we revisit the comparative acoustic diagnosis between P. burmeisteri and P. bahiana. We were unable to distinguish BUR and BUR-RJ evolutionary units based on morphometric, acoustic or any other feature of external morphology or coloration. Given the high levels of similarity in morphometric and acoustic traits between P. burmeisteri and P. bahiana, these features appear not to be informative in the differentiation of the two sister species.Keywords: amphibians, bioacoustics, Leaf Frogs, taxonomy. 40Phyllomedusa -17(1), June 2018Resumo Uma avaliação acústica e morfométrica da distribuição geográfica de Phyllomedusa burmeisteri (Anura: Phyllomedusidae), com comentários sobre P. bahiana. Um estudo recente, baseado em abordagens filogenéticas e filogeográficas a partir de genes mitocondriais e nucleares, detectou duas unidades evolutivas (BUR e BUR-RJ) dentro da distribuição geográfica conhecida de P. burmeisteri. O estudo apontou que a linhagem BUR apresenta ampla distribuição, enquanto a BUR-RJ está restrita a uma pequena área coincidente com a Serra do Mar no estado do Rio de Janeiro. Neste estudo, nós avaliamos se os dados acústicos e morfométricos suportam esses dois clados de P. burmeisteri propostos com base em evidências moleculares. Também fornecemos dados morfométricos detalhados inéditos de machos adultos de P. burmeisteri (incluindo os topótipos), bem como do holótipo de P. bahiana. Além disso, revisitamos a diagnose acústica comparativa entre P. burmeisteri e P. bahiana proposta anteriormente na literatura. Não foi possível distinguir as unidades evolutivas (BUR e BUR-RJ) de P. burmeisteri com base em morfometria, bioacústica ou qualquer outro caráter da morfologia externa ou da coloração dos espécimes amostrados. Do mesmo modo, os caracteres morfométricos e acústicos parecem não ser informativos na diagnose comparativa entre P. burmeisteri e P. bahiana, uma vez que encontramos aqui altos níveis de similaridade entre essas duas espécies-irmãs.

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The influence of riverine barriers on phylogeographic patterns of Malagasy reed frogs (Heterixalus)

Cited by 37 publications

References 74 publications

DNA barcoding assessment of genetic variation in two widespread skinks from Madagascar, Trachylepis elegans and T. gravenhorstii (Squamata: Scincidae)

DNA barcoding assessment of genetic variation in two widespread skinks from Madagascar, Trachylepis elegans and T. gravenhorstii (Squamata: Scincidae)

Phylogeography of the arid-adapted Malagasy bullfrog, Laliostoma labrosum, influenced by past connectivity and habitat stability

An acoustic and morphometric evaluation of the geographic distribution of Phyllomedusa burmeisteri (Anura: Phyllomedusidae), with comments on P. bahiana

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