Phylogeography of montane dragons could shed light on the history of forests and diversification processes on Sumatra

Shaney, Kyle J.; Maldonado, Jose A.; Smart, Utpal; Thammachoti, Panupong; Fujita, Matthew K.; Hamidy, Amir; Kurniawan, Nia; Harvey, Michael B.; Smith, Eric N.

doi:10.1016/j.ympev.2020.106840

Cited by 11 publications

(17 citation statements)

References 33 publications

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“…The genus Pseudocalotes was found to be polyphyletic (Figs 2-4) as seen in an earlier study Harvey et al 2017;Shaney et al 2020). Members of the genus formed two distinct clusters, one composed of P. baliomus, P. cybelidermus, P. guttalineatus, P. rhammanotus, and the type species P. tympanistriga, which we refer to as the Pseudocalotes sensu stricto clade.…”

Section: Discussionsupporting

confidence: 70%

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On the systematics and the phylogenetic position of the poorly known, montane dragon-lizard species Pseudocalotes austeniana (Annandale, 1908) (Squamata, Agamidae, Draconinae)

Gowande¹,

Bhosale²,

Phansalkar³

et al. 2021

EvolSyst

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The montane agamid species Pseudocalotes austeniana has had a complicated taxonomic history, as the species was initially described as a member of the genus Salea Gray, 1845. Later, the species was placed in a monotypic genus Mictopholis Smith, 1935, which was erected only to include this species; however, the species was later on transferred to the genus Pseudocalotes Fitzinger, 1843, owing to the morphological similarities, and lack of strong characters to diagnose the genus Mictopholis. Nonetheless, its precise phylogenetic and systematic position has remained unresolved due to the lack of molecular sequence data. During a herpetological expedition to Arunachal Pradesh, specimens of P. austeniana were collected from the hills near the type locality. The mitochondrial 16S rRNA, ND2 and ND4, and the nuclear RAG1 regions were subjected to molecular phylogenetics. Maximum Likelihood and Bayesian Inference gene trees revealed that P. austeniana is a member of the subfamily Draconinae. The analyses showed that the genus Pseudocalotes is polyphyletic, and P. austeniana was embedded within the genus Japalura Gray, 1853 sensu stricto. We here, thus, propose to transfer the species P. austeniana to the genus Japlaura, as Japalura austenianacomb. nov. Biogeographic and evolutionary significance of the findings are discussed.

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Section: Discussionsupporting

confidence: 70%

“…We downloaded the relevant mitochondrial genomic sequences by Shaney et al (2020), particularly for ND4 dataset, which included those of the members of the genus Pseudocalotes sensu lato. Sequences of the 16S, ND2, ND4 regions from the genomic sequences were extracted manually.…”

Section: Dna Isolation Amplification and Sequencingmentioning

confidence: 99%

On the systematics and the phylogenetic position of the poorly known, montane dragon-lizard species Pseudocalotes austeniana (Annandale, 1908) (Squamata, Agamidae, Draconinae)

Gowande¹,

Bhosale²,

Phansalkar³

et al. 2021

EvolSyst

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“…Based on Shaney et al (2020) breaks in species boundaries of Dendragama seem to occur consistently wherever elevation dips to 650–700 m (or lower) between mountains based on glacial periods during the Pleistocene. Thus, we hypothesize the following mountains will hold new D. dioidema sister lineages (Table 4 ).…”

Section: Discussionmentioning

confidence: 99%

“…We hypothesize that each mountain probably has a new species, not just the possibility of one or two new species among all mountains mentioned. Based on Shaney et al (2020) findings regarding the elevational shifts of Pleistocene cloud forests, it is likely that all of the 18 mountains mentioned remained isolated even during periods of glacial maxima. This latter point is crucial because Pleistocene connectivity is what would have facilitated gene flow historically and sympatric distributions contemporarily (which is not how they are distributed).…”

Section: Discussionmentioning

confidence: 99%

“…Among D. dioidema lineages there is distinct genetic variation between populations in the Leuser Mountains and the Boundahara Mountains, which are divided by a low valley running north and south, which is paralleled by the Blangkejeren-Kutacane Road. Based on Shaney et al (2020) breaks in species boundaries of Dendragama seem to occur consistently wherever elevation dips to 650-700 m (or lower) between mountains based on glacial periods during the Pleistocene. Thus, we hypothesize the following mountains will hold new D. dioidema sister lineages (Table 4).…”

Section: Key To the Species Of Dendragamamentioning

confidence: 99%

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Phylogeny and biogeography of Sumatra´s cloud forest lizards of the genus Dendragama and status of Acanthosaura schneideri

Shaney¹,

Harvey²,

Hamidy³

et al. 2020

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Lizards of the genus Dendragama are endemic to the highland cloud forests of Sumatra’s Barisan Mountain Range in western Indonesia, and recent studies have uncovered widespread diversity within the genus. Here, a suite of morphological characters and mitochondrial DNA are used to compare three geographically isolated populations of D. boulengeri from (1) Mount Kerinci in Jambi province, (2) Mount Marapi of west Sumatra, and (3) the Karo Highlands of north Sumatra. Additional phylogeographic analyses with two recently described sister species, D. australis and D. dioidema were conducted. Five genetically distinct clades of Dendragama, all distributed allopatrically of one another were identified and some are suspected to inhabit small distributions. Morphological and genetic data confirm the Karo Highlands population D. schneideri (previously Acanthosaura schneideri Ahl, 1926) should be revalidated from the synonymy of D. boulengeri. Dendragama schneideri is endemic to montane forests of the Karo Highlands surrounding Lake Toba in Sumatra Utara province. Pairwise genetic distances of 6–11% separate D. schneideri from congeners. Two distinct clades of D. boulengeri from Mount Kerinci and Mount Marapi were identified, which are 5.0% genetically distant from one another. Using morphological characters, we provide the first key for distinguishing between species of Dendragama. Based on biogeographic patterns and levels of genetic variation it is suspected that at least 18 other isolated cloud forest locations may hold new species or divergent populations of Dendragama but lack survey work. Collectively, these comparisons among populations of montane lizards further elucidate the complex biogeographic history of Sumatra’s montane forest species and the first phylogeny of the genus Dendragama.

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Discovery of a deeply divergent and highly endemic frog lineage from Borneo: A taxonomic revision of Kalophrynus nubicola Dring, 1983 with descriptions of two new species (Amphibia: Anura: Microhylidae)

Fukuyama

Matsui

Eto

et al. 2021

Zoologischer Anzeiger

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Phylogeography of montane dragons could shed light on the history of forests and diversification processes on Sumatra

Cited by 11 publications

References 33 publications

On the systematics and the phylogenetic position of the poorly known, montane dragon-lizard species Pseudocalotes austeniana (Annandale, 1908) (Squamata, Agamidae, Draconinae)

On the systematics and the phylogenetic position of the poorly known, montane dragon-lizard species Pseudocalotes austeniana (Annandale, 1908) (Squamata, Agamidae, Draconinae)

Phylogeny and biogeography of Sumatra´s cloud forest lizards of the genus Dendragama and status of Acanthosaura schneideri

Discovery of a deeply divergent and highly endemic frog lineage from Borneo: A taxonomic revision of Kalophrynus nubicola Dring, 1983 with descriptions of two new species (Amphibia: Anura: Microhylidae)

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