2015
DOI: 10.1007/s10709-015-9856-z
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Integrative taxonomy detects cryptic and overlooked fish species in a neotropical river basin

Abstract: The great freshwater fish diversity found in the neotropical region makes management and conservation actions challenging. Due to shortage of taxonomists and insufficient infrastructure to deal with such great biodiversity (i.e. taxonomic impediment), proposed remedies to accelerate species identification and descriptions include techniques that combine DNA-based identification and concise morphological description. The building of a DNA barcode reference database correlating meristic and genetic data was deve… Show more

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Cited by 49 publications
(35 citation statements)
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“…The CO1 genetic distance (5.4%) was also greater than the distances for the two species published in BOLD (4.1%). In the literature, CO1 nucleotide diversity values lower than 4.1% have been used as a minimum threshold to distinguish intraspecific variation from interspecific divergence (Gomes, Pessali, Sales, Pompeu, & Carvalho, ; Ratnasingham & Hebert, ). In contrast to the strong mitochondrial differentiation signals, minimal divergence was detected between the three Bayesian clusters at nuclear microsatellites ( F ST ≤ 0.029).…”
Section: Discussionmentioning
confidence: 99%
“…The CO1 genetic distance (5.4%) was also greater than the distances for the two species published in BOLD (4.1%). In the literature, CO1 nucleotide diversity values lower than 4.1% have been used as a minimum threshold to distinguish intraspecific variation from interspecific divergence (Gomes, Pessali, Sales, Pompeu, & Carvalho, ; Ratnasingham & Hebert, ). In contrast to the strong mitochondrial differentiation signals, minimal divergence was detected between the three Bayesian clusters at nuclear microsatellites ( F ST ≤ 0.029).…”
Section: Discussionmentioning
confidence: 99%
“…In specific groups, such as the Neotropical fish, studies have used the barcoding threshold (approximately 2%) proposed by Ward (2009) to delimit a wide-range of species (Rosso et al, 2012;Bellafronte et al,. 2013;Pereira et al, 2013;Gomes et al, 2015;Shimabukuro-Dias et al, 2016;Díaz et al, 2016). Nonetheless, given the great diversity of 6 e160147 [6] species, particularly related to life histories and complexity of environment, a fixed threshold value can under-or overestimate the correct number of MOTUs (Brown et al, 2012).…”
Section: Discussionmentioning
confidence: 99%
“…The integration between the molecular and traditional taxonomic identification is a relevant association and can promote the identification of a greater number of species than currently described (Steinke, Hanner, 2011). Presently, there is a range of studies addressing the Neotropical ichthyofauna through DNA barcoding, suggesting and revealing several new species (Pereira et al, 2011;Rosso et al, 2012;Gomes et al, 2015;Ramirez, Galetti Jr., 2015;Melo et al, 2016). However, the success of the identification of species from molecular data depends on the precise taxonomic identification and availability of reference sequences (Ward et al, 2009)…”
Section: Introductionmentioning
confidence: 99%
“…Additionally, the Florida and Barbados populations differed by 2.3%. These levels of intraspecific divergence are considered to be relatively large and could indicate that A. stipes from within each of these island‐groups represent independent evolutionary lineages (Gomes, Pessali, Sales, Pompeu, & Carvalho, 2015). …”
Section: Discussionmentioning
confidence: 99%