Publications by authors named "Mariana Kuranaka"

Article Synopsis
  • Astroblepus mindoensis, an endangered Andean climbing catfish species native to Ecuador, faces challenges in species classification, prompting important taxonomic discussions.
  • This study utilized an integrative approach, combining cytogenetic analysis, molecular identification, and detailed morphological measurements to enhance the understanding of the species' taxonomy.
  • Findings reveal distinct chromosomal markers and an unusual sex-determination system, with further research warranted to explore these features in relation to other species in the Astroblepus genus.
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The plecos (Loricariidae) fish represent a great model for cytogenetic investigations due to their variety of karyotypes, including diploid and polyploid genomes, and different types of sex chromosomes. In this study we investigate a rare loricariid endemic to Ecuador, integrating cytogenetic methods with specimens' molecular identification by mtDNA, to describe the the species karyotype. We aim to verify whether sex chromosomes are cytologically identifiable and if they are associated with the accumulation of repetitive sequences present in other species of the family.

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This study integrates morphological and molecular data to redefine the taxonomic limits of Ophidion holbrookii, as well as its geographic ranges, with the description of a new species from the eastern and southeastern coast of Brazil, South America. Ophidion zavalai n. sp.

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