Integrative taxonomy of two peruvian strains of brachionus plicatilis complex with potential in aquaculture

Pedro Pablo Alonso Sánchez-Dávila, Giovanna Sotil, Araceli Adabache-Ortiz, Deivis Cueva, Marcelo Silva-Briano

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Resumen

Two Peruvian strains of the genus Brachionus were isolated from impacted coastal wet-lands. With an integrative taxonomic view, we described their taxonomic status, morphological characters, productive parameters, and phylogenetic position. In the case of both strains, the relationship between biometrics and productive parameters obtained with Principal Components Analysis indicated that the lorica length was associated with longevity, progeny, egg production, and reproductive age, while the lorica width and aperture were associated with the maximum number of eggs carried. Maximum Likelihood and Bayesian Inference analysis carried out with mtDNA COI gene and rDNA ITS1 region showed that both strains were clustered in two clades with distinct phylogenetic positioning from what is currently known for Brachionus plicatilis s.l. One of the strains, Z010-VL, is proposed to be a subspecies of L4 (B. paranguensis), and the other strain, Z018-SD, is proposed as a sub species of SM2 (B. koreanus). In addition, 33 and 31 aquaculture production lineages are proposed, delimited by COI and concatenated COI+ITS1 sequences, respectively. Finally, this study provides new tools that enhance the traceability of the origin of each sub-species throughout the world.

Idioma originalInglés
Número de artículo671
PublicaciónDiversity
Volumen13
N.º12
DOI
EstadoPublicada - dic. 2021
Publicado de forma externa

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© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

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