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First genomic resource for an endangered neotropical mega-herbivore: the complete mitochondrial genome of the forest-dweller (Baird?s) tapir (Tapirus bairdii)
Indexado
WoS WOS:000812903400004
Scopus SCOPUS_ID:85131875855
DOI 10.7717/PEERJ.13440
Año 2022
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



Baird’s tapir, or the Central American Tapir Tapirus bairdii (family Tapiridae), is one of the largest mammals native to the forests and wetlands of southern North America and Central America, and is categorized as ‘endangered’ on the 2014 IUCN Red List of Threatened Species. This study reports, for the first time, the complete mitochondrial genome of T. bairdii and examines the phylogenetic position of T. bairdii amongst closely related species in the same family and order to which it belongs using mitochondrial protein-coding genes (PCG’s). The circular, double-stranded, A-T rich mitochondrial genome of T. bairdii is 16,697 bp in length consisting of 13 protein-coding genes (PCG’s), two ribosomal RNA genes (rrnS (12s ribosomal RNA and rrnL (16s ribosomal RNA)), and 22 transfer RNA (tRNA) genes. A 33 bp long region was identified to be the origin of replication for the light strand (OL), and a 1,247 bp long control region (CR) contains the origin of replication for the heavy strand (OH). A majority of the PCG’s and tRNA genes are encoded on the positive, or heavy, strand. The gene order in T. baiirdi is identical to that of T. indicus and T. terrestris, the only two other species of extant tapirs with assembled mitochondrial genomes. An analysis of Ka/Ks ratios for all the PCG’s show values <1, suggesting that all these PCGs experience strong purifying selection. A maximum-likelihood phylogenetic analysis supports the monophyly of the genus Tapirus and the order Perissodactyla. The complete annotation and analysis of the mitochondrial genome of T. bairdii will contribute to a better understanding of the population genomic diversity and structure of this species, and it will assist in the conservation and protection of its dwindling populations.

Revista



Revista ISSN
Peer J 2167-8359

Métricas Externas



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Disciplinas de Investigación



WOS
Multidisciplinary Sciences
Scopus
Agricultural And Biological Sciences (All)
Biochemistry, Genetics And Molecular Biology (All)
Neuroscience (All)
SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Ennis, Caroline C. Mujer Clemson University - Estados Unidos
Clemson Univ - Estados Unidos
2 Ortega, Jorge Hombre Instituto Politécnico Nacional - México
Inst Politecn Nacl - México
3 BAEZA-MIGUELES, JUAN ANTONIO Hombre Clemson University - Estados Unidos
Universidad Católica del Norte - Chile
Smithsonian Marine Station - Estados Unidos
Smithsonian Inst - Estados Unidos
Clemson Univ - Estados Unidos

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Financiamiento



Fuente
Clemson University
Creative Inquiry and Clemson Thinks<SUP>2</SUP> at Clemson University

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Agradecimientos



Agradecimiento
The authors are grateful to Dr. Vincent P. Richards of Clemson University for bioinformatics support. This study was supported by Creative Inquiry and Clemson Thinks2 at Clemson University. We also appreciate support by Parque Xcaret, Playa del Carmen, Quintana Roo, Mexico for the tissue sample provided.
The authors are grateful to Dr. Vincent P. Richards of Clemson University for bioinformatics support. This study was supported by Creative Inquiry and Clemson Thinks<SUP>2</SUP> at Clemson University. We also appreciate support by Parque Xcaret, Playa del Carmen, Quintana Roo, Mexico for the tissue sample provided.

Muestra la fuente de financiamiento declarada en la publicación.