Taxonomic diversity of Biomphalaria (Planorbidae) in São Paulo state, Brazil

Ohlweiler, Fernanda Pires; Rossignoli, Thays de Jesus; Palasio, Raquel Gardini Sanches; Tuan, Roseli

doi:10.1590/1676-0611-bn-2020-0975

Cited by 11 publications

(9 citation statements)

References 30 publications

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“…This result is promising regarding the use of DNA barcoding for taxonomy by the schistosomiasis epidemiology service in Brazil. In addition, due to the resolution observed using the Best Close Match (BCM) and BOLD Identification Criteria analyses, DNA barcoding methodology has a great potential to provide greater objectivity for mollusk identification, and can be used for the verification of identification performed by other methods ( Ohlweiler et al., 2020 ). For species of the B. tenagophila complex, despite the proximity between the taxa, the DNA sequences were correctly identified by DNA barcoding methodology, with the analyses performed by BOLD Identification Criteria and BCM .…”

Section: Discussionmentioning

confidence: 99%

“…For species of the B. tenagophila complex, despite the proximity between the taxa, the DNA sequences were correctly identified by DNA barcoding methodology, with the analyses performed by BOLD Identification Criteria and BCM . Other authors also successfully separated the species of this complex, using DNA barcoding and phylogenetics, with high support values associated with each of the clades, and concluded that, for this species complex, molecular data may be more informative for species discrimination than morphology ( Ohlweiler et al., 2020 ).…”

Section: Discussionmentioning

confidence: 99%

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DNA barcoding as a valuable tool for delimiting mollusk species of the genus Biomphalaria Preston, 1910 (Gastropoda: Planorbidae)

Araújo¹,

Carvalho²,

Gava³

et al. 2023

Front. Cell. Infect. Microbiol.

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IntroductionThe genus Biomphalaria in Brazil includes 11 species and one subspecies, three of which are intermediate hosts of Schistosoma mansoni. Due to the recent evolution of this group, some species are difficult to identify based on morphological characters, making the use of genetic markers necessary for species identification. This study aimed to evaluate the use of partial sequences of the cytochrome c oxidase I (coi) gene for the identification of Biomphalaria species using phylogenetic reconstruction and species delimitation algorithms. The study tested the use of DNA barcoding technique for species delimitation within the genus.MethodsDNA barcoding was performed by sequencing a partial region of the coi gene from specimens, and the sequences were analyzed using phylogenetic reconstruction and algorithms to delimit Operational Taxonomic Units (OTUs).ResultsThe study found that the use of the coi gene in the reconstruction of the phylogeny of the genus might be an alternative for understanding the evolution and dispersion of species. However, this marker alone is not enough to solve complex taxonomic problems within the genus. A total of 223 sequences were analyzed, 102 of which could be separated using the barcode gap, enabling the correct identification of seven taxa.DiscussionThe study demonstrated that accurate mollusk identification is necessary for effective schistosomiasis control. The DNA barcoding methodology was found to be promising for accurate mollusk identification, which is crucial for concentrating schistosomiasis control efforts in places where it is needed.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

DNA barcoding as a valuable tool for delimiting mollusk species of the genus Biomphalaria Preston, 1910 (Gastropoda: Planorbidae)

Araújo¹,

Carvalho²,

Gava³

et al. 2023

Front. Cell. Infect. Microbiol.

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“…Os gastrópodes pertencentes a Família Planorbidae são caracóis pulmonados encontrados em ambientes de água doce (Strong et al, 2008), frequentemente registrados em locais com condições de hipóxia, juntamente com Chiromonidae e Oligocheta (Colpo et al, 2009). Além disso, os planorbídeos do gênero Biomphalaria Preston, 1910 são hospedeiros do Schistosoma mansoni Sambon, 1907, agente etiológico da esquistossomose (Ohlweiler et al, 2021). et al, 2007).…”

Section: Discussionunclassified

Composição da assembleia de macroinvertebrados bentônicos em área de mineração de carvão em processo de recuperação ambiental

Watywarawan

Cascaes²,

Brunelli³

et al. 2022

RSD

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Lagoas formadas em cavas de mineração de carvão são habitats próprios para organismos bentônicos, os quais, podem ser utilizados para indicar a qualidade de tais corpos d'água. Este estudo teve por objetivo analisar a comunidade de macroinvertebrados bentônicos em lagoa artificial em área minerada em processo de recuperação ambiental. Foram realizadas duas campanhas de amostragem, nas quais, foram dispostos 10 pontos amostrais em duas distâncias da margem, com revolvimento do substrato durante três minutos e coletas com puçá, totalizando uma hora de esforço amostral. Os dados foram analisados com base nos atributos de riqueza (Bootstrap e Chao1), abundância, diversidade (Shannon-Weaver) e qualidade ambiental da lagoa (BMWP’). Foram coletados 786 indivíduos pertencentes a 24 famílias. A riqueza estimada para a área ficou entre 24 e 25 famílias e a amostragem abrangeu entre 92% e 98%. Chironomidae (n = 363), Libellulidae (n = 99) e Culicidae (n =85) foram as mais abundantes. Foi observada diferença estatística nos valores de diversidade e abundância total entre as coletas (t = 3,027; p = 0,005 e t = 1,318; p = 0,01, respectivamente), com valores mais elevados na primavera. A qualidade da lagoa foi classificada como duvidosa de acordo com o índice BMWP’ em ambas as coletas, demonstrando que a mesma está comprometida e, embora a área esteja em processo de recuperação, as famílias mais abundantes são típicas de habitats poluídos. O estudo indica a importância do biomonitoramento no acompanhamento das condições ambientais e na adoção de medidas de recuperação de ambientes degradados.

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“…Both susceptible and refractory species may coexist in the same municipality. In São Paulo, in the Southeast Region of Brazil, B. occidentalis, B. oligoza, B. peregrina, B. schrammi, B. straminea and B. tenagophila are present in water bodies of the upper basin of the Tietê River ( 14 ).…”

Section: Geographic Distribution Of Susceptible Species Of mentioning

confidence: 99%

Invasion and Dispersal of Biomphalaria Species: Increased Vigilance Needed to Prevent the Introduction and Spread of Schistosomiasis

Habib

Rollinson

et al. 2021

Front. Med.

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Biological invasion is a matter of great concern from both public health and biodiversity perspectives. Some invasive snail species may trigger disease emergence by acting as intermediate hosts. The geographic distribution of Schistosoma mansoni depends on the presence of susceptible species of Biomphalaria freshwater snails that support the parasite's transformation into infective stages. Biomphalaria spp. have shown strong local and global dispersal capacities that may increase due to the global warming phenomenon and increases in the development of agricultural and water projects. Should intermediate hosts become established in new areas then this will create potential transmission foci. Examples of snail invasions that have had an impact on schistosomiasis transmission include the introduction of Biomphalaria tenagophila to Congo and B. glabrata to Egypt. The current spread of B. straminea in China is causing concern and needs to be monitored closely. An understanding of the mode of invasion and distribution of these snails as well as their experimental susceptibility to S. mansoni will predict the potential spread of schistosomiasis. Here we review the invasion patterns of Biomphalaria snails and factors that control their distribution and the impact that invasion may have on intestinal schistosomiasis transmission. In addition, we propose some possible surveillance responses for optimum control strategies and interventions. Whenever possible, swift action should be taken to contain any new occurrence of these intermediate snail hosts.

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Taxonomic diversity of Biomphalaria (Planorbidae) in São Paulo state, Brazil

Cited by 11 publications

References 30 publications

DNA barcoding as a valuable tool for delimiting mollusk species of the genus Biomphalaria Preston, 1910 (Gastropoda: Planorbidae)

DNA barcoding as a valuable tool for delimiting mollusk species of the genus Biomphalaria Preston, 1910 (Gastropoda: Planorbidae)

Composição da assembleia de macroinvertebrados bentônicos em área de mineração de carvão em processo de recuperação ambiental

Invasion and Dispersal of Biomphalaria Species: Increased Vigilance Needed to Prevent the Introduction and Spread of Schistosomiasis

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