Shift in Phenotypic Variation Coupled With Rapid Loss of Genetic Diversity in Captive Populations of Eristalis tenax (Diptera: Syrphidae): Consequences for Rearing and Potential Commercial Use

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Título: Shift in Phenotypic Variation Coupled With Rapid Loss of Genetic Diversity in Captive Populations of Eristalis tenax (Diptera: Syrphidae): Consequences for Rearing and Potential Commercial Use
Autor/es: Francuski, Ljubinka | Djurakic, Marko | Ludoški, Jasmina | Hurtado Asencio, Pilar | Pérez-Bañón, Celeste | Ståhls, Gunilla | Rojo, Santos | Milankov, Vesna
Grupo/s de investigación o GITE: Bionomía, Sistemática e Investigación Aplicada de Insectos Dípteros e Himenópteros
Centro, Departamento o Servicio: Universidad de Alicante. Departamento de Ciencias Ambientales y Recursos Naturales | Universidad de Alicante. Centro Iberoamericano de la Biodiversidad
Palabras clave: Biodegradation of organic waste | Pollinator quality | Molecular diversity | Phenotypic variance | Inbreeding and stochastic process
Área/s de conocimiento: Zoología
Fecha de publicación: abr-2014
Editor: Entomological Society of America
Cita bibliográfica: Journal of Economic Entomology. 2014, 107(2): 821-832. doi:10.1603/EC13243
Resumen: Because of its importance as a pollinator and its potential economic usefulness for the biodegradation of organic animal waste, the genetic and phenotypic diversity of the drone fly, Eristalis tenax L. (Diptera: Syrphidae), was studied in both wild and captive populations from southeastern Europe. Wild specimens from a natural protected habitat (with low human impact), field crop habitat (semisynanthropic condition), and intensive pig farming habitat (synanthropic condition) were compared with a laboratory colony reared on artificial media. An integrative approach was applied based on allozyme loci, cytochrome c oxidase I mitochondrial DNA, wing traits (size and shape), and abdominal color patterns. Our results indicate that the fourth and eighth generations of the laboratory colony show a severe lack of genetic diversity compared with natural populations. Reduced genetic diversity in subsequent generations (F4 and F8) of the laboratory colony was found to be linked with phenotypic divergence. Loss of genetic variability associated with phenotypic differentiation in laboratory samples suggests a founder effect, followed by stochastic genetic processes and inbreeding. Hence, our results have implications for captive bred Eristalis flies, which have been used in crop pollination and biodegradation of organic waste under synanthropic conditions.
Patrocinador/es: This work was supported in part by the Ministry of Science of Serbia (Dynamics of gene pool, genetic and phenotypic variability of populations, determined by the environmental changes, No. 173012), and the Provincial Secretariat for Science and Technological Development (Molecular and phenotypic diversity of taxa of economical and epidemiological importance, and endangered and endemic species in Europe). This study was partially funded by project LIFE-ECODIPTERA (LIFE05-ENV/E/000302).
URI: http://hdl.handle.net/10045/37283
ISSN: 0022-0493 (Print) | 1938-291X (Online)
DOI: 10.1603/EC13243
Idioma: eng
Tipo: info:eu-repo/semantics/article
Derechos: © 2014 Entomological Society of America
Revisión científica: si
Versión del editor: http://dx.doi.org/10.1603/EC13243
Aparece en las colecciones:INV - IBAI-DH - Artículos Científicos / Scientific Papers

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