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Abstract <p>The genus <i>Devario</i> are a taxonomically complex group, and recent studies have placed the records of <i>D. aequipinnatus</i> from the Southern Western Ghats within the <i>D. malabaricus</i> complex. Their ambiguity in distribution, occurrence, morphology, and molecular data of the genus <i>Devario</i> hinders conservation efforts and understanding of their ecology and evolution. Of particular concern, <i>D. neilgherriensis</i> has not undergone any studies since its description by Day 1867. This Endangered species lacks morphological and molecular data which poses a significant challenge to its conservation. In this study, we present this species‛ morphology and molecular data. In addition, molecular analysis using the partial mitochondrial <i>COI</i> gene suggests that <i>D. neilgherriensis</i> is genetically close to <i>D. anomalus</i> and <i>D. auropurpureus</i> with a divergence of 14.6.0 and 14.7%, respectively. <i>D. neilgherriensis</i> differs from its sister taxon <i>D. aequipinnatus</i> (15.5%) and <i>D. malabaricus</i> (17.5%) in genetic divergence. This expanded research in combining morphological and molecular studies helps to delimit the ambiguity in this understudied species.</p>

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Unravelling Taxonomic Ambiguity of the Devario neilgherriensis (Teleostei: Danionidae) from the Southern Western Ghats, India through DNA Barcoding and Morphological Approach

  • 期刊论文

  • 发表日期：

    2025年6月10日

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  • M. S. Sowmiya,
  • P. Bhavadharani,
  • A. Felix,
  • K. Kannan

摘要

Abstract

The genus Devario are a taxonomically complex group, and recent studies have placed the records of D. aequipinnatus from the Southern Western Ghats within the D. malabaricus complex. Their ambiguity in distribution, occurrence, morphology, and molecular data of the genus Devario hinders conservation efforts and understanding of their ecology and evolution. Of particular concern, D. neilgherriensis has not undergone any studies since its description by Day 1867. This Endangered species lacks morphological and molecular data which poses a significant challenge to its conservation. In this study, we present this species‛ morphology and molecular data. In addition, molecular analysis using the partial mitochondrial COI gene suggests that D. neilgherriensis is genetically close to D. anomalus and D. auropurpureus with a divergence of 14.6.0 and 14.7%, respectively. D. neilgherriensis differs from its sister taxon D. aequipinnatus (15.5%) and D. malabaricus (17.5%) in genetic divergence. This expanded research in combining morphological and molecular studies helps to delimit the ambiguity in this understudied species.