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Título : Molecular correlation between larval, deutonymph and adult stages of the water mite Arrenurus (Micruracarus) Novus
Autores: Alarcón-Elbal, Pedro María
García-Jiménez, R.
Peláez, M. L.
Horreo, J. L.
Valdecasas, A. G.
Investigadores (UNIBE): Alarcón-Elbal, Pedro María 
Afiliaciones : Instituto de Medicina Tropical y Salud Global (IMTSAG) 
Área de investigación : Ciencias de la Vida
Palabras clave: Acari Actinotrichida; COI; Cytochrome B; Genetic identification; Hydrachnidia; Culicidae; Reverse taxonomy; Species identification
Fecha de publicación : 2020
Editorial : MDPI Multidisciplinary Digital Publishing Institute
Publicado en: Life, 10(7), 108
Revista: Life 
Volumen : 10
Número : 7
Página de inicio : 108
Resumen : 
The systematics of many groups of organisms has been based on the adult stage. Morphological transformations that occur during development from the embryonic to the adult stage make it difficult (or impossible) to identify a juvenile (larval) stage in some species. Hydrachnidia (Acari, Actinotrichida, which inhabit mainly continental waters) are characterized by three main active stages—larval, deutonymph and adult—with intermediate dormant stages. Deutonymphs and adults may be identified through diagnostic morphological characters. Larvae that have not been tracked directly from a gravid female are difficult to identify to the species level. In this work, we compared the morphology of five water mite larvae and obtained the molecular sequences of that found on a pupa of the common mosquito Culex (Culex) pipiens with the sequences of 51 adults diagnosed as Arrenurus species and identified the undescribed larvae as Arrenurus (Micruracarus) novus. Further corroborating this finding, adult A. novus was found thriving in the same mosquito habitat. We established the identity of adult and deutonymph A. novus by morphology and by correlating COI and cytB sequences of the water mites at the larval, deutonymph and adult (both male and female) life stages in a particular case of ‘reverse taxonomy’. In addition, we constructed the Arrenuridae phylogeny based on mitochondrial DNA, which supports the idea that three Arrenurus subgenera are ‘natural’: Arrenurus, Megaluracarus and Micruracarus, and the somewhat arbitrary distinction of the species assigned to the subgenus Truncaturus.
URI : http://cris.unibe.edu.do/handle/123456789/256
DOI : 10.3390/life10070108
Aparece en las colecciones: Publicaciones del IMTSAG-UNIBE

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