TY - JOUR T1 - Lasso Model for Morphological Covariation Patterns between Colossoma macropomum and Piaractus orinoquensis × Colossoma macropomum Hybrid A1 - Manuel Milla Pino A1 - Danny Villegas Rivas A1 - César Osorio Carrera A1 - Nancy Carruitero Avila A1 - Teresita Merino Salazar A1 - Henry Díaz Merino A1 - Carola Calvo Gastañaduy A1 - Ricardo Shimabuku Ysa A1 - Juan De La Cruz Lozado A1 - River Chávez Santos A1 - Dora Calvo Gastañaduy A1 - Lillet Villavicencio Palacios JF - Journal of Biochemical Technology JO - J Biochem Technol SN - 0974-2328 Y1 - 2021 VL - 12 IS - 1 DO - 10.51847/pFILL2lk3G SP - 45 EP - 48 N2 - Currently, great importance has been given to the study of external morphology, especially in fish, when it is used as a means of identifying hybrids. This paper considers a LASSO model based on the truss protocol to compare morphological covarion patterns between specimens of C. macropomum and the hybrid P. orinoquensis (♂) × C. macropomum (♀). In this study, 25 specimens of C. macropomum and 20 specimens of the hybrid P. orinoquensis (♂) × C. macropomum (♀), were analyzed, respectively. The method "Truss protocol" or "trusses" was used. LASSO model achieved to reduce the mean squared error. The final model obtained contains only seven covariates. LASSO model fitted on the morphological covariation patterns between specimens of C. macropomum and the hybrid P. orinoquensis (♂) × C. macropomum (♀) showed a good fit and allowed to correctly classify most of the specimens. Differences were observed in the area of the head and the anterior part of the fish evidenced in covariates associated with hydrodynamic abilities and with foraging. UR - https://jbiochemtech.com/article/lasso-model-for-morphological-covariation-patterns-between-colossoma-macropomum-and-piaractus-orinoq-fzw9ikliy1yo0gm ER -