Natatanuran frogs used the Indian Plate to step-stone disperse and radiate across the Indian Ocean

Yuan, Zhongwei; Zhang, Baolin; Raxworthy, Christopher J.; Weisrock, David W.; Hime, Paul M.; Jin, Jing; Lemmon, Emily Moriarty; Lemmon, Alan R.; Holland, Sean; Kortyna, Michelle L; Zhou, Weiwei; Peng, Min‐Sheng; Che, Jing; Prendini, Elizabeth

doi:10.1093/nsr/nwy092

Cited by 49 publications

(47 citation statements)

References 27 publications

(43 reference statements)

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“…[11]. On the other hand, despite the biotic exchange between India and Madagascar during the early Paleocene and early Eocene as indicated by the history of some Malagasy frogs [57,58], it appears that no anabantiform fishes had followed this route to invade Madagascar, where there are no snakehead fishes or climbing perches today [4,6].…”

Section: Historical Biogeographymentioning

confidence: 99%

Into Africa via docked India: a fossil climbing perch from the Oligocene of Tibet helps solve the anabantid biogeographical puzzle

Wu¹,

He²,

Fang³

et al. 2019

Science Bulletin

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Section: Historical Biogeographymentioning

confidence: 99%

Into Africa via docked India: a fossil climbing perch from the Oligocene of Tibet helps solve the anabantid biogeographical puzzle

Wu¹,

He²,

Fang³

et al. 2019

Science Bulletin

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“…In the current study, we use an anchored hybrid enrichment approach (AHE) [31][32][33][34] to resolve the phylogenetic relationships among Neobatrachus species, and to assess fine-scale intra-specific genetic population structure. We also quantify the extent of hybridization between the nine Neobatrachus species with a particular focus on taxa with contrasting ploidies.…”

Section: Introductionmentioning

confidence: 99%

Whole genome duplication potentiates inter-specific hybridisation and niche shifts in Australian burrowing frogs Neobatrachus

Novikova

Brennan

Booker

et al. 2019

Preprint

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Polyploidy plays an important role in evolution because it can lead to increased genetic complexity and speciation. It also provides an extra copy buffer and increases genetic novelty. While both common and well-studied in plants, polyploidy is rare in animals, and most polyploid animals reproduce asexually. Amphibians represent a dramatic vertebrate exception, with multiple independent sexually reproducing polyploid lineages, but very few cases have been studied in any detail. The Australian burrowing frog genus Neobatrachus is comprised of six diploid and three polyploid species and offers a powerful model animal polyploid system. We generated exome-capture sequence data from 87 individuals representing all nine species of Neobatrachus to investigate species-level relationships, the origin of polyploid species, and the population genomic effects of polyploidy on genus-wide demography. We resolve the phylogenetic relationships among Neobatrachus species and provide further support that the three polyploid species have independent origins. We document higher genetic diversity in tetraploids, resulting from widespread gene flow specifically between the tetraploids, asymmetric inter-ploidy gene flow directed from sympatric diploids to tetraploids, and current isolation of diploid species from each other. We also constructed models of ecologically suitable areas for each species to investigate the impact of climate variation on frogs with differing ploidy levels. These models suggest substantial change in suitable areas compared to past climate, which in turn corresponds to population genomic estimates of demographic histories. We propose that Neobatrachus diploids may be suffering the early genomic impacts of climate-induced habitat loss, while tetraploids appear to be avoiding this fate, possibly due to widespread gene flow into tetraploid lineages specifically. Finally, we demonstrate that Neobatrachus is an attractive model to study the effects of ploidy on evolution of adaptation in animals.

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“…6). Yuan et al (2018) using molecular phylogenies and divergence time estimates of Natatanura frogs of Madagascar also support the Indian plate as a 'Stepping Stone' for dispersals between Africa, Madagascar and Asia. They identify four time slices (between 130-88 Ma, 88-55 Ma, 55-25 Ma, 25-0 Ma) during which land bridges existed between these landmasses.…”

Section: Figure 5 Palaeogeographic Models Proposed In the Past To Exmentioning

confidence: 73%

“…The out-of-India dispersal hypothesis implies that only one way dispersal from India to Asia was possible following the collision between these two landmasses. However, Yuan et al (2018) have shown that Natatanuran frogs with African origins had dispersed to Asia between ~75.6 and 72.8 Ma using a terrestrial route (India as a 'stepping stone'). In the reverse direction, the mantellid frogs of Asian ancestry had possibly dispersed to Madagascar close to K/Pg boundary possibly using the same land connection (Van der Meijden et al, 2007;Kurabayashi et al, 2008).…”

Section: Indian Subcontinent As a Centre Of Origin/ Out-of-india Dispmentioning

confidence: 99%

Vertebrate evolution on the Indian raft - Biogeographic conundrums

Parmar

Prasad

2020

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Natatanuran frogs used the Indian Plate to step-stone disperse and radiate across the Indian Ocean

Cited by 49 publications

References 27 publications

Into Africa via docked India: a fossil climbing perch from the Oligocene of Tibet helps solve the anabantid biogeographical puzzle

Into Africa via docked India: a fossil climbing perch from the Oligocene of Tibet helps solve the anabantid biogeographical puzzle

Whole genome duplication potentiates inter-specific hybridisation and niche shifts in Australian burrowing frogs Neobatrachus

Vertebrate evolution on the Indian raft - Biogeographic conundrums

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