[No Title Available]

Vallinoto, Marcelo; Araripe, Juliana; Rêgo, Péricles Sena do; Tagliaro, Cláudia Helena; Sampaio, Iracilda; Schneider, Horácio

doi:10.1590/s1415-47572006000200005

Cited by 23 publications

(4 citation statements)

References 22 publications

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“…The impact of rivers on population structure in the Amazonia has been documented in birds, small mammals, invertebrates (e.g., Aleixo, 2006;Colwell, 2000;Pellegrino et al, 2005;Ribas, Aleixo, Nogueira, Miyaki, & Cracraft, 2012;Vallinoto et al, 2006), and in trees and understory plant species (Huaman & Matthies, 2008;Nazareno, Dick, & Lohmann, 2017;Schleuning et al, 2011;Stevenson, 2007;Zhang, Zheng, & Song, 2007). Nonetheless, the extent to which rivers impact fine-scale population genetic patterns and in particular, how factors such as the direction of river flow structure populations, are unknown.…”

Section: Introductionmentioning

confidence: 99%

Rivers shape population genetic structure in Mauritia flexuosa (Arecaceae)

Sander

Pérez-Zavala

Silva

et al. 2018

Ecology and Evolution

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The Mauritia flexuosa L.f. palm is known as the “tree of life” given its importance as fundamental food and construction resources for humans. The species is broadly distributed in wet habitats of Amazonia and dry habitats of the Amazon and Orinoco river basins and in the Cerrado savanna. We collected 179 individuals from eight different localities throughout these habitats and used microsatellites to characterize their population structure and patterns of gene flow. Overall, we found high genetic variation, except in one savanna locality. Gene flow between populations is largely congruent with river basins and the direction of water flow within and among them, suggesting their importance for seed dispersal. Further, rivers have had a higher frequency of human settlements than forested sites, contributing to population diversity and structure through increased human use and consumption of M. flexuosa along rivers. Gene flow patterns revealed that migrants are sourced primarily from within the same river basin, such as those from Madeira and Tapajós basins. Our work suggests that rivers and their inhabitants are a critical element of the landscape in Amazonia and have impacted the dispersal and subsequent distribution of tropical palm species, as shown by the patterns of genetic variation in M. flexuosa.

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Section: Introductionmentioning

confidence: 99%

Rivers shape population genetic structure in Mauritia flexuosa (Arecaceae)

Sander

Pérez-Zavala

Silva

et al. 2018

Ecology and Evolution

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“…Within the genera Saguinus and Oedipomidas, there were taxonomic revisions for some species. Saguinus midas niger (É. Geoffroy Saint-Hilaire, 1803) was elevated to full species, S. niger (É. Geoffroy Saint-Hilaire, 1803), based on analyses of morphological and molecular data (Natori & Hanihara, 1992;Rylands & Mittermeier, 2009;Vallinoto et al, 2006). Molecular phylogenies also indicated that the S. niger population on the right bank of the Tocantins River was a distinct taxon (Tagliaro et al, 2005;Vallinoto et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

“…Saguinus midas niger (É. Geoffroy Saint-Hilaire, 1803) was elevated to full species, S. niger (É. Geoffroy Saint-Hilaire, 1803), based on analyses of morphological and molecular data (Natori & Hanihara, 1992;Rylands & Mittermeier, 2009;Vallinoto et al, 2006). Molecular phylogenies also indicated that the S. niger population on the right bank of the Tocantins River was a distinct taxon (Tagliaro et al, 2005;Vallinoto et al, 2006). Thus, based on these studies and on craniometric and phenetic data, this population was revalidated as a full species, Saguinus ursulus Hoffmannsegg, 1807, previously considered a synonym of S. niger by Hershkovitz (1977) (Gregorin & Vivo, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Molecular phylogenies also indicated that the S . niger population on the right bank of the Tocantins River was a distinct taxon (Tagliaro et al, 2005; Vallinoto et al, 2006). Thus, based on these studies and on craniometric and phenetic data, this population was revalidated as a full species, Saguinus ursulus Hoffmannsegg, 1807, previously considered a synonym of S .…”

Section: Introductionmentioning

confidence: 99%

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Molecular systematics of tamarins with emphasis on genusTamarinus(Primates, Callitrichidae)

et al. 2023

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The genus Saguinus comprises three principal clades that diverged in the Middle to Late Miocene. Their taxa are ecologically differentiated and allopatrically distributed. These clades were recently recognized as different genera, Saguinus, Tamarinus and Oedipomidas. In Tamarinus, the phylogenetic relationships among species/subspecies are poorly understood. Thus, in this study we present a comprehensive dated genomic phylogeny based on double digest restriction associated DNA for all known species and subspecies of Tamarinus. We also tested whether that Tamarinus imperator and Tamarinus subgrisescens are different species, as morphology‐based taxonomy, phenotypical divergences and mitochondrial genes recognized them as two different species. Additionally, we reconstructed time‐calibrated phylogenetics tree hypotheses of all extant species and subspecies of the genera Saguinus, Tamarinus and Oedipomidas. Our analysis robustly supported the phylogenetic hypothesis of all species/subspecies of the genus Tamarinus; strongly supported a divergence between the three clades, Saguinus, Oedipomidas and Tamarinus; and provided support for T. imperator and T. subgrisescens as distinct species. Therefore, we reiterate and ratify the division of Saguinus into three genera, supporting the taxonomic proposal for these genera.

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Mitochondrial phylogeny of tamarins (Saguinus, Hoffmannsegg 1807) with taxonomic and biogeographic implications for theS. nigricollisspecies group

Matauschek

Roos

Heymann

2010

American J Phys Anthropol

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Tamarins of the genus Saguinus, subfamily Callitrichinae, represent one of the most diverse primate radiations. So far, about 35 taxa have been described, but detailed information about their taxonomy and phylogeny is still lacking. To further elucidate the phylogenetic relationships and the biogeographic history within the genus, and to contribute to a more reliable classification of its taxa, we sequenced the complete mitochondrial cytochrome b gene and the hypervariable region I of the D-loop. Therefore, we mainly used fecal samples from wild tamarins collected during two expeditions to the Peruvian Amazon, an area of high tamarin diversity. Our data suggest that the numerous taxa of the S. nigricollis species group are derived from a common ancestor that separated from the other representatives of the genus ~10 mya. Most taxa of the S. nigricollis group form monophyletic clusters, which mainly originated in a single rapid radiation ~2.9 mya. S. fuscicollis and S. nigricollis appear as polyphyletic taxa, but we could identify various clusters, which are mainly consistent with differences in coat coloration. We could confirm most of the existing taxa as distinct entities and suggest species status for fuscicollis, illigeri, lagonotus, leucogenys, nigricollis, nigrifrons, tripartitus, and weddelli. Our genetic data do not support a separate status for melanoleucus and graellsi, but due to differences in fur coloration, we give them subspecies status. The species group most likely originated in western Amazonia and diversified during the decline of the Acre wetland and the formation of the Amazonian river system.

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[No Title Available]

Cited by 23 publications

References 22 publications

Rivers shape population genetic structure in Mauritia flexuosa (Arecaceae)

Rivers shape population genetic structure in Mauritia flexuosa (Arecaceae)

Molecular systematics of tamarins with emphasis on genusTamarinus(Primates, Callitrichidae)

Mitochondrial phylogeny of tamarins (Saguinus, Hoffmannsegg 1807) with taxonomic and biogeographic implications for theS. nigricollisspecies group

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