title: Dynamics of genetic variability in Anastrepha fraterculus (Diptera: Tephritidae) during adaptation to laboratory rearing conditions.
abstract: BACKGROUND
  Anastrepha fraterculus is one of the most important fruit fly plagues in the American continent and only chemical control is applied in the field to diminish its population densities. A better understanding of the genetic variability during the introduction and adaptation of wild A. fraterculus populations to laboratory conditions is required for the development of stable and vigorous experimental colonies and mass-reared strains in support of successful Sterile Insect Technique (SIT) efforts.
  
  
  METHODS
  The present study aims to analyze the dynamics of changes in genetic variability during the first six generations under artificial rearing conditions in two populations: a) a wild population recently introduced to laboratory culture, named TW and, b) a long-established control line, named CL.
  
  
  RESULTS
  Results showed a declining tendency of genetic variability in TW. In CL, the relatively high values of genetic variability appear to be maintained across generations and could denote an intrinsic capacity to avoid the loss of genetic diversity in time.
  
  
  CONCLUSIONS
  The impact of evolutionary forces on this species during the adaptation process as well as the best approach to choose strategies to introduce experimental and mass-reared A. fraterculus strains for SIT programs are discussed.
authors.forename: María A
authors.initials: MA
authors.lastname: Parreño
authors.forename: Alejandra C
authors.initials: AC
authors.lastname: Scannapieco
authors.forename: María I
authors.initials: MI
authors.lastname: Remis
authors.forename: Marianela
authors.initials: M
authors.lastname: Juri
authors.forename: María T
authors.initials: MT
authors.lastname: Vera
authors.forename: Diego F
authors.initials: DF
authors.lastname: Segura
authors.forename: Jorge L
authors.initials: JL
authors.lastname: Cladera
authors.forename: Silvia B
authors.initials: SB
authors.lastname: Lanzavecchia
mesh_terms: D000220:Adaptation, Biological / Q000235:genetics; D000818:Animals; D014644:Genetic Variation; D005828:Genetics, Population; D005838:Genotype; D018895:Microsatellite Repeats; D011110:Polymorphism, Genetic; D033621:Tephritidae / Q000235:genetics*