Mitochondrial markers (cytochrome c oxidase subunit I and 16S ribosomal RNA) as supporting biomarkers for wild bird identification
Background and Aim: Illegal wildlife trafficking is a critical threat to biodiversity, particularly in megadiverse countries such as Colombia. Birds, notably psittacines, are among the most targeted taxa. Morphological identification is often insufficient, especially when dealing with cryptic specie...
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| Language: | English |
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Veterinary World
2025-05-01
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| Series: | Veterinary World |
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| Online Access: | https://www.veterinaryworld.org/Vol.18/May-2025/30.pdf |
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| author | Julián Marín-Villa Albeiro López-Herrera Daisy A. Gómez-Ruiz Diana C. Restrepo-Rodas Geraldine Sánchez-Rodríguez Cristina Úsuga-Monroy |
| author_facet | Julián Marín-Villa Albeiro López-Herrera Daisy A. Gómez-Ruiz Diana C. Restrepo-Rodas Geraldine Sánchez-Rodríguez Cristina Úsuga-Monroy |
| author_sort | Julián Marín-Villa |
| collection | DOAJ |
| description | Background and Aim: Illegal wildlife trafficking is a critical threat to biodiversity, particularly in megadiverse countries such as Colombia. Birds, notably psittacines, are among the most targeted taxa. Morphological identification is often insufficient, especially when dealing with cryptic species or degraded samples. This study aimed to assess the utility of mitochondrial markers cytochrome c oxidase subunit I (COI) and 16S ribosomal RNA (16S rRNA) as molecular tools for species-level identification of psittacines housed at the Conservation Park of Medellín.
Materials and Methods: Six adult psittacines from the genera Ara and Pionus were selected based on availability. Blood samples were collected and genomic DNA was extracted using a commercial kit. Polymerase chain reaction amplification of partial COI and 16S rRNA gene fragments was performed, followed by Sanger sequencing. Sequence identity was confirmed using BLASTn and the Barcode of Life Data System (BOLD). Phylogenetic relationships were analyzed using Neighbor-Joining, Maximum Likelihood, and Bayesian Inference approaches.
Results: Molecular results showed 100% concordance with prior morphological identification for all six individuals. COI and 16S rRNA sequences allowed clear species-level identification with similarity values >98%. Phylogenetic analyses for both markers yielded congruent tree topologies, with high branch support (>90%), further validating species identification. Maximum interspecific divergence for COI was observed between Ara macao and Pionus fuscus (0.15980), while 16S rRNA showed lower divergence values. All generated sequences were submitted to GenBank and BOLD in accordance with findable, accessible, interoperable, reusable principles.
Conclusion: This study confirms the robustness of COI and 16S rRNA mitochondrial markers in accurately identifying psittacine species. The integration of molecular and morphological approaches enhances forensic investigations, facilitates biodiversity conservation, and contributes to efforts against wildlife trafficking. Expanding genetic databases for Neotropical avifauna, especially for commonly trafficked species, is imperative. Future research should adopt integrative genomic approaches involving nuclear markers to overcome the maternal inheritance limitation of mitochondrial DNA. |
| format | Article |
| id | doaj-art-9490edd792f5458bb78492fa01373baf |
| institution | DOAJ |
| issn | 0972-8988 2231-0916 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Veterinary World |
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| series | Veterinary World |
| spelling | doaj-art-9490edd792f5458bb78492fa01373baf2025-08-20T03:10:58ZengVeterinary WorldVeterinary World0972-89882231-09162025-05-011851389139910.14202/vetworld.2025.1389-1399Mitochondrial markers (cytochrome c oxidase subunit I and 16S ribosomal RNA) as supporting biomarkers for wild bird identificationJulián Marín-Villa0https://orcid.org/0009-0006-4978-2949Albeiro López-Herrera1https://orcid.org/0000-0003-1444-3470Daisy A. Gómez-Ruiz2https://orcid.org/0000-0002-5046-2989Diana C. Restrepo-Rodas3https://orcid.org/0009-0008-7760-2452Geraldine Sánchez-Rodríguez4https://orcid.org/0009-0004-3186-0983Cristina Úsuga-Monroy5https://orcid.org/0000-0001-6101-2994Grupo BIOGEM, Facultad de Ciencias, Universidad Nacional de Colombia sede Medellín, 050034, Medellín, Colombia.Grupo BIOGEM, Facultad de Ciencias Agrarias, Universidad Nacional de Colombia sede Medellín, 050034, Medellín, Colombia.Grupo GINVER, Facultad de Medicina Veterinaria, Corporación Universitaria Remington, 050010, Medellín, Colombia.Grupo CYBA, Parque de la Conservación, 050024, Medellín, Colombia.Grupo CYBA, Parque de la Conservación, 050024, Medellín, Colombia.Grupo GINVER, Facultad de Medicina Veterinaria, Corporación Universitaria Remington, 050010, Medellín, Colombia.Background and Aim: Illegal wildlife trafficking is a critical threat to biodiversity, particularly in megadiverse countries such as Colombia. Birds, notably psittacines, are among the most targeted taxa. Morphological identification is often insufficient, especially when dealing with cryptic species or degraded samples. This study aimed to assess the utility of mitochondrial markers cytochrome c oxidase subunit I (COI) and 16S ribosomal RNA (16S rRNA) as molecular tools for species-level identification of psittacines housed at the Conservation Park of Medellín. Materials and Methods: Six adult psittacines from the genera Ara and Pionus were selected based on availability. Blood samples were collected and genomic DNA was extracted using a commercial kit. Polymerase chain reaction amplification of partial COI and 16S rRNA gene fragments was performed, followed by Sanger sequencing. Sequence identity was confirmed using BLASTn and the Barcode of Life Data System (BOLD). Phylogenetic relationships were analyzed using Neighbor-Joining, Maximum Likelihood, and Bayesian Inference approaches. Results: Molecular results showed 100% concordance with prior morphological identification for all six individuals. COI and 16S rRNA sequences allowed clear species-level identification with similarity values >98%. Phylogenetic analyses for both markers yielded congruent tree topologies, with high branch support (>90%), further validating species identification. Maximum interspecific divergence for COI was observed between Ara macao and Pionus fuscus (0.15980), while 16S rRNA showed lower divergence values. All generated sequences were submitted to GenBank and BOLD in accordance with findable, accessible, interoperable, reusable principles. Conclusion: This study confirms the robustness of COI and 16S rRNA mitochondrial markers in accurately identifying psittacine species. The integration of molecular and morphological approaches enhances forensic investigations, facilitates biodiversity conservation, and contributes to efforts against wildlife trafficking. Expanding genetic databases for Neotropical avifauna, especially for commonly trafficked species, is imperative. Future research should adopt integrative genomic approaches involving nuclear markers to overcome the maternal inheritance limitation of mitochondrial DNA.https://www.veterinaryworld.org/Vol.18/May-2025/30.pdf16s ribosomal rnacoiconservation geneticsmitochondrial dnamolecular taxonomypsittacineswildlife forensics |
| spellingShingle | Julián Marín-Villa Albeiro López-Herrera Daisy A. Gómez-Ruiz Diana C. Restrepo-Rodas Geraldine Sánchez-Rodríguez Cristina Úsuga-Monroy Mitochondrial markers (cytochrome c oxidase subunit I and 16S ribosomal RNA) as supporting biomarkers for wild bird identification Veterinary World 16s ribosomal rna coi conservation genetics mitochondrial dna molecular taxonomy psittacines wildlife forensics |
| title | Mitochondrial markers (cytochrome c oxidase subunit I and 16S ribosomal RNA) as supporting biomarkers for wild bird identification |
| title_full | Mitochondrial markers (cytochrome c oxidase subunit I and 16S ribosomal RNA) as supporting biomarkers for wild bird identification |
| title_fullStr | Mitochondrial markers (cytochrome c oxidase subunit I and 16S ribosomal RNA) as supporting biomarkers for wild bird identification |
| title_full_unstemmed | Mitochondrial markers (cytochrome c oxidase subunit I and 16S ribosomal RNA) as supporting biomarkers for wild bird identification |
| title_short | Mitochondrial markers (cytochrome c oxidase subunit I and 16S ribosomal RNA) as supporting biomarkers for wild bird identification |
| title_sort | mitochondrial markers cytochrome c oxidase subunit i and 16s ribosomal rna as supporting biomarkers for wild bird identification |
| topic | 16s ribosomal rna coi conservation genetics mitochondrial dna molecular taxonomy psittacines wildlife forensics |
| url | https://www.veterinaryworld.org/Vol.18/May-2025/30.pdf |
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