Cytogenetic analysis of three species of Pseudacteon (Diptera, Phoridae) parasitoids of the fire ants using standard and molecular techniques

  title={Cytogenetic analysis of three species of Pseudacteon (Diptera, Phoridae) parasitoids of the fire ants using standard and molecular techniques},
  author={M. Chirino and P. Folgarait and L. Gilbert and S. Lanzavecchia and A. Papeschi},
  journal={Genetics and Molecular Biology},
  pages={740 - 747}
Pseudacteon flies, parasitoids of worker ants, are being intensively studied as potentially effective agents in the biological control of the invasive pest fire ant genus Solenopsis (Hymenoptera: Formicidae). This is the first attempt to describe the karyotype of P. curvatus Borgmeier, P. nocens Borgmeier and P. tricuspis Borgmeier. The three species possess 2n = 6; chromosomes I and II were metacentric in the three species, but chromosome pair III was subtelocentric in P. curvatus and P… Expand
Unusual chromosome polymorphism and heterochromatin variation in the Argentinean population of the necrophagous fly Lucilia sericata (Diptera: Calliphoridae), comparison with other populations and evolutionary aspects
The cytogenetic observations on L. sericata indicate that the accumulation of heterochromatin in the genome could be involved in chromosomal divergence and karyotype evolution of this species, as demonstrated in other Diptera. Expand


Localization and activity of rDNA genes in tiger beetles (Coleoptera: Cicindelinae)
The nucleolus does not seem to play a major role in the pairing and association of the multiple sex chromosomes during first meiotic prophase and metaphase and changes of location of NORs from the heterosomes to the autosomes have occurred within species of this genus, at least in species showing extensive karyotypic repatterning. Expand
Karyotype characterization of Anastrepha fruit flies (Diptera: Tephritidae)
The C-banded mitotic chromosomes of five species of Anastrepha can be characterized unequivocally by the length and the pattern of blocks of heterochromatin in the sex chromosomes. Expand
C-banding and FISH in chromosomes of the blow flies Chrysomya megacephala and Chrysomya putoria (Diptera, Calliphoridae).
Results confirm that C. putoria was the species introduced into Brazil in 1970s, and not C. chloropyga as formerly described, and there are no substantial differences in the karyotype morphology of these two species. Expand
Development of Pseudacteon nocens (Diptera: Phoridae) on Solenopsis invicta and Solenopsis richteri fire ants (Hymenoptera: Formicidae).
We studied the developmental performance of the large morph of Pseudacteon nocens Borgmeier (Diptera: Phoridae), a prospective biological control agent of imported fire ants (Hymenoptera:Expand
Development of Pseudacteon cultellatus (Diptera: Phoridae) on Solenopsis invicta and Solenopsis richteri Fire Ants (Hymenoptera: Formicidae)
Although larval developmental times did not differ as a function of sizes of host offered, average time of development in the pupal stage was extended by 12% in the case of host size mixtures which included workers larger than the phorid’s preferred host size in comparison to homogeneously small ants. Expand
Oviposition behavior and development of Pseudacteon flies (Diptera: Phoridae), parasitoids of Solenopsis fire ants (Hymenoptera: Formicidae).
We studied the oviposition behavior and larval development of Pseudacteon phorid flies, which are parasitoids of Solenopsis fire ants. Four South American Pseudacteon spp., P. litoralis Borgmeier, P.Expand
Behavior and Development of Pseudacteon curvatus (Diptera: Phoridae) Varies According to the Social Form of Its Host Solenopsis invicta (Hymenoptera: Formicidae) in Its Native Range
The rarity of polygyne S. invicta in its native range may prevent this phorid from adjusting its life history to that social form, and consequences of applying thisphorid in biological control are discussed. Expand
Post-Release Host-Specificity Testing of Pseudacteon tricuspis, a Phorid Parasitoid of Solenopsis Invicta Fire Ants
Tests of host specificity on introduced populations of Pseudacteon tricuspis found it to be highly host specific and pose no obvious threat to nontarget species. Expand
Development of Pseudacteon obtusus (Diptera: Phoridae) on Solenopsis invicta and Solenopsis richteri Fire Ants (Hymenoptera: Formicidae)
Pseudacteon obtusus seems to be a promising candidate for biological control releases in that in addition to its high host specificity, it develops better on red fire ants, attacks ants on trails and mounds, and chooses a worker size range that complements the two other PseudACTeon species already released. Expand
The Genetics of Megaselia scalaris Loew (Phoridae): A New Type of Sex Determination in Diptera
  • F. Mainx
  • Biology
  • The American Naturalist
  • 1964
1) The Phorid, Megaselia scalaris, is a very favorable object for investigating a series of genetic problems. 2) A list of genes discovered to date and a provisional genetic map have been presented.Expand