Taxonomía y filogenia molecular de especies de PHYTOSEIIDAE de Tungurahua - Ecuador

• Autor: Pérez Salinas, Marco Oswaldo
• Formato: tesis doctoral
• Fecha de Publicación: 2018
• Institución: Universidad Nacional de Trujillo
• Repositorio: UNITRU-Tesis
• Lenguaje: español
• OAI Identifier: oai:dspace.unitru.edu.pe:20.500.14414/11890
• Enlace del recurso: https://hdl.handle.net/20.500.14414/11890
• Nivel de acceso: acceso abierto
• Materia: Phyotoseiidae; Morfometría; Quetotaxia; Tungurahua

ABSTRACT Author: Mg. Marco Pérez Salinas, TAXONOMY AND MOLECULAR PHYLOGENY OF PHYTOSEIIDAE SPECIES OF TUNGURAHUA - ECUADOR, Adviser: Dr. Humberto Anselmo Carrasco, Coadvisor: Ph.D. Carlos Vásquez, 71 p., 2018, National university of Trujillo. In Ecuador there is no information on taxonomy of Phytoseiidae. In the present study, the chaetotaxic variations were determinated in populations of Neoseiulus sp. and Typhlodromus sp. (Acari: Phytoseiidae) in cultivars of the Ambato canton (Ecuador). Specimens of Phytoseiidae were collected in plants of Fragaria ananassa cv. Albion and Rubus glaucus cv. Mora de Castilla . The specimens of Phytoseiidae were separated by morphotype and permanent assemblies were prepared using PVA liquid identified with data of sampling location, plant species, date of collection. For the chaetotaxic analysis the following morphological characters were considered: length of the dorsal setae (j1, j3, j4, j5, j6, J5, z2, z4, z5, s4, Z4, Z5, S5, r3 and r1), presence and length of macrosetae in the legs, distance between the bases of the sternal setae, length of the fixed and mobile fingers of the chelicerae, length and width of the dorsal shield and of the ventral shields (sternal, genital and ventricular). An Analysis of Variance was used to determine the differences of the morphological measurements. To visualize the homogeneity within populations and the heterogeneity between populations, a principal components analysis was made, using the multivariate statistics program NTSYSpc v. 2.11T. According to the results, the length and width of the idiosome, as well as the chaetotaxy of the dorsal idiosomal setae showed significant differences among the five populations studied. Regarding the length and width of the idiosoma, the population of Neoseiulus collected in strawberry plants in Huachi Grande showed the highest values, followed by the populations collected in Montalvo and Juan Benigno Vela. When considering the dorsal idiosomal mushrooms, differences were observed in the setae j1, j3, j4, j5, z2, z4, z5, r3, J5, S5 and R1. The analysis of main components explained the variation in the morphometric measurements applied on the individuals of 5 populations in 58.95% for the first two axes and in 70.49% for the first three axes. Based on the results on morphometry of specimens of Neoseiulus sp. and Typhlodromus sp., the use of dorsal idiosomal setae is useful for the identification and separation of the populations studied.