re-evaluation of the discriminatory power of dna barcoding on some specimens of african cyprinidae (subfamilies cyprininae and danioninae)

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ID: 227319
2018
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Abstract
Specimen identification in the absence of diagnostic morphological characters (e.g., larvae) can be problematic even for experts. The goal of the present study was to assess the performance of COI in discriminating specimens of the fish family Cyprinidae in Africa, and to explore whether COI-phylogeny can be reliably used for phylogenetic comparative analysis. The main objective was to analyse a matrix of COI sequences for 315 specimens from 15 genera of African Cyprinidae using various distance-based identification methods alongside multiple tests of DNA barcode efficacy (barcode gap, species monophyly on NJ tree). Some morphological and biological characters were also mapped on a COI-phylogeny reconstructed using Maximum Parsimony. First, the results indicated the existence of barcode gaps, a discriminatory power of COI ranging from 79 % to 92 %, and that most nodes form well-supported monophyletic clades on an NJ tree. Second, it was found that some morphological and biological characters are clustered on the COI-phylogeny, and this indicates the reliability of these characters for taxonomic discrimination within the family. Put together, our results provide not only an additional support for the COI as a good barcode marker for the African Cyprinidae but it also indicate the utility of COI-based phylogenies for a wide spectrum of ecological questions related to African Cyprinidae.
Reference Key
adeoba2018zookeysre-evaluation Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Mariam I. Adeoba;Ronny Kabongo;Herman Van der Bank;Kowiyou Yessoufou
Journal biochimica et biophysica acta
Year 2018
DOI
10.3897/zookeys.746.13502
URL
https://zookeys.pensoft.net/lib/ajax_srv/article_elements_srv.php?action=download_xml&item_id=13502
Keywords
Zoology

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