Not just the river: genes, shapes, and sounds reveal population-structured diversification in the Amazonian frog Allobates tapajos (Dendrobatoidea)

Maia, Gabriela Farias; Lima, Albertina P.; Kaefer, Ígor Luís

doi:10.1093/biolinnean/blw017

Cited by 24 publications

(12 citation statements)

References 73 publications

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“…Melo-Sampaio et al, 2020). Given their habitat and their reproductive biology, Allobates species have limited dispersal abilities, which is consistent with marked range boundaries and the profound intraspecific genetic structure documented for several species at regional scale, notably throughout large rivers (Kaefer, Tsuji-Nishikido, Mota, Farias, & Lima, 2013;Maia, Lima, & Kaefer, 2017).…”

Section: Continued Scientific Exploration Ofmentioning

confidence: 53%

Historical biogeography identifies a possible role of Miocene wetlands in the diversification of the Amazonian rocket frogs (Aromobatidae: Allobates)

Réjaud

Rodrigues

Crawford

et al. 2020

Journal of Biogeography

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Aim: We investigate the spatiotemporal context of the diversification of Allobates, a widespread genus of Amazonian frogs with high species diversity particularly in western Amazonia. We tested if that diversity originated in situ or through repeated dispersals from other Amazonian areas and if this diversification took place during or after the Pebas system, a vast lacustrine system occupying most western Amazonia between 23 and 10 million years ago (Mya). Location: Amazonia.

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Section: Continued Scientific Exploration Ofmentioning

confidence: 53%

Historical biogeography identifies a possible role of Miocene wetlands in the diversification of the Amazonian rocket frogs (Aromobatidae: Allobates)

Réjaud

Rodrigues

Crawford

et al. 2020

Journal of Biogeography

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“…In addition to the potential role of rivers as geographic barriers that can limit gene flow and promote genetic drift, intrinsic biological traits of species may predict the magnitude and the spatiotemporal distribution of neutral genetic variation found within and between populations (Burney & Brumfield, ; Fouquet, Courtois, Baudain, & Lima, ; Maia, Lima, & Kaefer, ). For instance, the ability of frog species to disperse across the Oyapock River—a large, well‐channelled Amazonian river on Precambrian rock that drains into the Atlantic Ocean—was highly dependent on their species‐specific traits (Fouquet et al., ).…”

Section: Introductionmentioning

confidence: 99%

Tangled banks: A landscape genomic evaluation of Wallace's Riverine barrier hypothesis for three Amazon plant species

2019

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Wallace's Riverine Barrier hypothesis is one of the earliest biogeographic explanations for Amazon speciation, but it has rarely been tested in plants. In this study, we used three woody Amazonian plant species to evaluate Wallace's Hypothesis using tools of landscape genomics. We generated unlinked single‐nucleotide polymorphism (SNP) data from the nuclear genomes of 234 individuals (78 for each plant species) across 13 sampling sites along the Rio Branco, Brazil, for Amphirrhox longifolia (8,075 SNPs), Psychotria lupulina (9,501 SNPs) and Passiflora spinosa (14,536 SNPs). Although significantly different migration rates were estimated between species, the population structure data do not support the hypothesis that the Rio Branco—an allopatric barrier for primates and birds—is a significant genetic barrier for Amphirrhox longifolia, Passiflora spinosa or Psychotria lupulina. Overall, we demonstrated that medium‐sized rivers in the Amazon Basin, such as the Rio Branco, are permeable barriers to gene flow for animal‐dispersed and animal‐pollinated plant species.

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“…Fragments of the 16S rRNA mitochondrial gene were amplified by polymerase chain reaction (PCR) using universal primers 16sar (5′-CGCCTGTTTATCAAAAACAT-3′) and 16sbr (5′-CCGGTCTGAACTCAGATCACGT-3′) ( Palumbi, 1996 ). Extractions, PCR reactions and sequencing were conducted with both forward and reverse primers ( Maia, Lima & Kaefer, 2017 ). Sequences were visually checked and manually edited in Geneious 5.3.4 ( Kearse et al, 2012 ).…”

Section: Methodsmentioning

confidence: 99%

A new nurse frog (Anura: Allobates) from Brazilian Amazonia with a remarkably fast multi-noted advertisement call

Souza

Ferrão

Howard

et al. 2020

PeerJ

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Nurse frogs (Aromobatidae: Allobates) are probably the most extensively studied genus by taxonomists in Brazilian Amazonia. The southwestern portion of Amazonia is the most species-rich: as many as seven species may occur in sympatry at a single locality. In this study, we describe a new species of nurse frog from this region. The description integrates data from larval and adult morphology, advertisement calls and DNA sequences. Allobates velocicantus sp. nov. is distinguished from other Allobates mainly by the absence of hourglass-shaped dark marks on the dorsum and dark transverse bars on the thigh; a throat that is white centrally and yellow marginally; basal webbing on toes II and III; finger I longer than finger II; and an advertisement call composed of 66–138 pulsed notes with a note duration of 5–13 ms, inter-note intervals of 10–18 ms and a dominant frequency of 5,512–6,158 Hz. Tadpoles of the new species have 3–4 short, rounded papillae on the anterior labium, 16–23 papillae on the posterior labium, and a labial keratodont row formula 2(2)/3(1). This is the fifth species of Allobates described from the state of Acre, southwestern Brazilian Amazonia.

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Not just the river: genes, shapes, and sounds reveal population-structured diversification in the Amazonian frog Allobates tapajos (Dendrobatoidea)

Cited by 24 publications

References 73 publications

Historical biogeography identifies a possible role of Miocene wetlands in the diversification of the Amazonian rocket frogs (Aromobatidae: Allobates)

Historical biogeography identifies a possible role of Miocene wetlands in the diversification of the Amazonian rocket frogs (Aromobatidae: Allobates)

Tangled banks: A landscape genomic evaluation of Wallace's Riverine barrier hypothesis for three Amazon plant species

A new nurse frog (Anura: Allobates) from Brazilian Amazonia with a remarkably fast multi-noted advertisement call

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