Multilocus molecular phylogeny of the suckermouth armored catfishes (Siluriformes: Loricariidae) with a focus on subfamily Hypostominae

Lujan, Nathan K.; Armbruster, Jonathan W.; Lovejoy, Nathan R.; López‐Fernández, Hernán

doi:10.1016/j.ympev.2014.08.020

Cited by 128 publications

(192 citation statements)

References 48 publications

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“…The rarity of this species should be more rigorously studied for future management, especially given its economic potential. In a recent molecular phylogeny of Loricariidae with focus on Hypostominae (Lujan et al, 2015), Panaqolus claustellifer (as Panaqolus n. sp. Tacutu L306) was found to be sister to P. gnomus, a species endemic to the Pastaza and upper Maranõn basins, with P. nocturnus from the Santiago and Pastaza basins of the upper Napo sister to them.…”

Section: Discussionmentioning

confidence: 99%

“…Panaqolus is widely distributed in the Amazon River, rio Orinoco, and coastal rivers of the Guianas (Lujan et al, 2013). Although previously classified with the large-bodied, wood-eating Panaque (Schaefer & Stewart, 1993;Armbruster, 2004), molecular analyses have shown that these genera are distinct (Cramer et al, 2011;Lujan et al, 2015), and we follow previous taxonomic studies that also recognize Panaqolus (Lujan et al, 2013;Cramer, 2014;Cramer & Rapp Py-Daniel, 2015). Currently, there are ten valid species of Panaqolus: P. dentex (Günther, 1868), P. purusiensis (LaMonte, 1935), P. albomaculatus (Kanazawa, 1958), P. gnomus (Schaefer & Stewart, 1993), P. maccus (Schaefer & Stewart, 1993), P. nocturnus (Schaefer & Stewart, 1993), P. changae (Chockley & Armbruster, 2002), P. koko Fisch-Muller & Covain, 2012, P. albivermis Lujan, Steele & Valesquez, 2013, and P. nix Cramer & Rapp Py-Daniel, 2015.…”

Section: Introductionmentioning

confidence: 99%

“…Armbruster, 2003;Armbruster & Werneke, 2005;Tan & Armbruster, 2016). Lujan et al (2015), in a phylogenetic analysis of Loricariidae focused on Hypostominae, include a specimen of Panaqolus from Guyana. This specimen, collected during LSD's and JWA's surveys of the Rupununi region of Guyana, represents a new species described herein, and it provides information on the enrichment of the fauna of the rio Takutu proposed by de Souza et al (2012).…”

Section: Introductionmentioning

confidence: 99%

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A new species of Panaqolus (Siluriformes: Loricariidae) from the rio Branco

2016

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A new species of Panaqolus is described from material from the Takutu River and the mainstem rio Branco. The new species is diagnosed from congeners by its color pattern consisting of dark and light bars on the body, bands on the fins, and with dots and vermiculations absent (vs. no bars in P. albomaculatus, P. nix, P. nocturnus, and P. koko, vs. fins unbanded in P. albomaculatus, P. dentex, P. koko, and P. nix, and vs. dots and vermiculations present in P. albivermis and P. maccus). The new species is diagnosed from barred species of Panaqolus by its specific bar number and orientation and color pattern on its head, with bars oriented in a anteroventral-posterodorsal direction (vs. anterodorsal-posteroventral bars in P. gnomus), having consistently 5 bars (n = 4) on the trunk that do not increase with size (vs. number increasing with size in P. purusiensis and vs. 6-12 in P. changae), and the color pattern on the head of straight lines extending from posterior to the eye to the snout margin, splitting in the middle portion of the line in larger specimens (vs. small, dense reticulate lines in P. changae). Biogeographically, we infer that the new species ancestrally originated in the Amazon river, dispersing to the Takutu River after the Amazon captured part of the Proto-Berbice. Uma espécie nova de Panaqolus é descrita do rio Branco e seu afluente, rio Tacutu. A nova espécie é diagnosticada de suas congêneres pelo padrão de colorido composto por barras escuras e claras alternadas no corpo e nadadeiras, não formando máculas ou vermiculações nas nadadeiras (vs. sem barras no corpo em P. albomaculatus, P. nix, P. nocturnus, e P. koko, e vs. sem barras nas nadadeiras em P. albomaculatus, P. dentex, P. koko, e P. nix, e vs. máculas e vermiculações presentes em P. albivermis e P. maccus). A nova espécie é diagnosticada das espécies de Panaqolus com barras pelo número e orientação das barras e pelo padrão de colorido cefálico, com as barras orientadas posterodorsalmente (vs. posteroventralmente em P. gnomus), pela presença de cinco barras (n = 4) no tronco que não aumentam com o tamanho (vs. número aumentando com o tamanho em P. purusiensis e vs. 6-12 barras em P. changae), e o padrão de colorido cefálico composto por linhas retas da margem posterior do olho à margem do focinho, dividida medianamente em indivíduos maiores (vs. linhas pequenas e vermiculadas em P. changae). Nos inferimos que a nova espécie originou-se ancestralmente no rio Amazonas, dispersando para o rio Tacutu após o Amazonas capturar parte do Proto-Berbice.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A new species of Panaqolus (Siluriformes: Loricariidae) from the rio Branco

2016

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“…In 2004, Armbruster in a morphology-based cladistic analysis of Hypostominae including Aphanotorulus ammophilus Armbruster & Page, 1996, A. unicolor (Steindachner, 1908, Hypostomus emarginatus (1 and 2), H. squalinus and Isorineloricaria spinosissima, observed the paraphyly of this group inserted inside a large Hypostomus clade. Lujan et al (2015), in a molecular phylogeny using both Bayesian Inference and Maximum Likelihood methods, erected a new division for the tribe Hypostomini: Hypostomus continued to be monophyletic with exclusion of the species in the Hypostomus emarginatus group: Aphanotorulus ammophilus, A. emarginatus n. comb., A. squalinus n. comb.…”

Section: Introductionmentioning

confidence: 99%

“…Support for this analysis was strong for Aphanotorulus (BPP = 1, MLB = 99); however, support for the monophyly of Aphanotorulus emarginatus and A. squalinus in the analysis was weak. Therefore, based on molecular analysis, Lujan et al (2015) recognized the species of Squaliforma in Aphanotorulus.…”

Section: Introductionmentioning

confidence: 99%

A new species of Aphanotorulus (Siluriformes: Loricariidae) from the rio Aripuanã basin, Brazil

2017

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The cis-Andean genus Aphanotorulus was recently revised and comprises six valid species: A. ammophilus, A. emarginatus, A. gomesi, A. horridus, A. phrixosoma and A. unicolor. Herein, a new species is described from tributaries of the rio Aripuanã basin, in Amazonas and Mato Grosso states, Brazil. The new species is easily distinguished from congeners by its color pattern: caudal fin with upper lobe mostly hyaline with dark spots along rays and membranes, and lower lobe red and without dark spots; and absence of dark spots in the lateral series of mid-ventral plates.Keywords: Amazon basin, Fishes, Hypostominae, Taxonomy.O gênero cisandino Aphanotorulus foi recentemente revisado e consiste de seis espécies válidas: A. ammophilus, A. emarginatus, A. gomesi, A. horridus, A. phrixosoma e A. unicolor. No presente trabalho, uma nova espécie é descrita dos tributários da bacia do rio Aripuanã, nos estados do Amazonas e Mato Grosso, Brasil. A nova espécie é facilmente distinguida de suas congêneres pelo padrão de coloração: nadadeira caudal com o lobo superior quase totalmente hialino e com pintas escuras ao longo dos raios e membranas, e o lobo inferior vermelho e desprovido de pintas; ausência de manchas escuras na série lateral de placas medianas ventrais.

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Evolutionary optimization of an anatomical suction cup: Lip collagen content and its correlation with flow and substrate in Neotropical suckermouth catfishes (Loricarioidei)

Bressman

Armbruster

Lujan

et al. 2020

Journal of Morphology

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In riverine ecosystems, downstream drag caused by fast-flowing water poses a significant challenge to rheophilic organisms. In neotropical rivers, many members of a diverse radiation of suckermouth catfishes (Loricarioidei) resist drag in part by using modified lips that form an oral suction cup composed of thick flesh. Histological composition and morphology of this cup are interspecifically highly variable. Through an examination of 23 loricarioid species, we determined that the tissue most responsible for lip fleshiness is collagen. We hypothesized that lip collagen content is interspecifically correlated with substrate and flow so that fishes living on rocky substrates in high-flow environments have the largest, most collagenous lips. By mapping the amount and distribution of lip collagen onto a phylogeny and conducting ANOVA tests, we found support for this hypothesis. Moreover, these traits evolved multiple times in correlation with substrate and flow, suggesting they are an effective means for improving suction-based attachment. We hypothesize that collagen functions to reinforce oral suction cups, reducing the likelihood of slipping, buckling, and failure under high-flow, high-drag conditions. Macroevolutionary patterns among loricarioid catfishes suggest that for maximum performance, biomimetic suction cups should vary in material density according to drag and substrate requirements.

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Multilocus molecular phylogeny of the suckermouth armored catfishes (Siluriformes: Loricariidae) with a focus on subfamily Hypostominae

Cited by 128 publications

References 48 publications

A new species of Panaqolus (Siluriformes: Loricariidae) from the rio Branco

A new species of Panaqolus (Siluriformes: Loricariidae) from the rio Branco

A new species of Aphanotorulus (Siluriformes: Loricariidae) from the rio Aripuanã basin, Brazil

Evolutionary optimization of an anatomical suction cup: Lip collagen content and its correlation with flow and substrate in Neotropical suckermouth catfishes (Loricarioidei)

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