2019
DOI: 10.1371/journal.pone.0216786
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Species delimitation of neotropical Characins (Stevardiinae): Implications for taxonomy of complex groups

Abstract: Accurate species delimitation is crucial for studies of phylogeny, phylogeography, ecology, conservation and biogeography. The limits of species and genera in the Characidae family are controversial due to its uncertain phylogenetic relationships, high level of morphological homoplasy and the use of ambiguous morphological characters for descriptions. Here we establish species boundaries for Bryconamericus , Hemibrycon , Knodus and … Show more

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Cited by 40 publications
(34 citation statements)
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“…Several studies have employed molecular species delimitation methods either as a standalone tool or as part of an integrative approach to delimit species [60][61][62]. Here, we advocate for the use of molecular species delimitation methods along with other sources of evidence, to avoid misleading species delimitation due to theoretical and/or methodological shortfalls (as exemplified above; see also [57][58][59]).…”
Section: Comments On Species Recognition and Noveltiesmentioning
confidence: 99%
“…Several studies have employed molecular species delimitation methods either as a standalone tool or as part of an integrative approach to delimit species [60][61][62]. Here, we advocate for the use of molecular species delimitation methods along with other sources of evidence, to avoid misleading species delimitation due to theoretical and/or methodological shortfalls (as exemplified above; see also [57][58][59]).…”
Section: Comments On Species Recognition and Noveltiesmentioning
confidence: 99%
“…In this context, many Neotropical fish families have been revised through studies focused on delimitating species by molecular techniques (e.g. Characidae—García‐Melo et al., 2019; Curimatidae—Melo & Oliveira, 2017; Loricariidae—Roxo, Ochoa, Costa‐Silva, & Oliveira, 2015). Therefore, the noteworthy scarcity of species delimitations from genetic sequences in Auchenipteridae (with the exceptions of Calegari et al., 2019; Cooke, Chao, & Beheregaray, 2012; Hashimoto, Py‐Daniel, & Batista, 2020) is likely to result in the description of large numbers of new species with the progressive implementation of molecular techniques.…”
Section: Discussionmentioning
confidence: 99%
“…Using a phylogenetic tree of the COI gene built‐in RAxML HPC2 on XSEDE v8.2.10 (Stamatakis, 2014) implemented in the CIPRES portal (Miller et al ., 2010), the bPTP model was run in the web portal http://species.h-its.org/ptp/ (Zhang et al ., 2013). The three variations of the molecular species delimitation methods (GMYC, ABGD and bPTP) were evaluated following an iterative process of comparison to define the operational taxonomical unit (OTU; García‐Melo et al ., 2019), and the molecular delimitation was accepted when all or the majority of the consensus methods recovered the OTUs as distinct units.…”
Section: Methodsmentioning
confidence: 99%