ABSTRACT
Changes in puffing pattern after heat shock in Musca domestica were studied during the prepupal stage. Eight puffs which normally do not appear during development, were detected. One was found on chromosome X, one on chromosome III, two on chromosome IV and four on chromosome VI. Most of the observed puffs were large and had a complex structure characterized by visible granules.
Subject(s)
Chromosomes/ultrastructure , Hot Temperature , Houseflies/genetics , AnimalsABSTRACT
The mitotic chromosomes in Musca domestica consist of five pairs of autosomes and an X, Y sex chromosome pair. They respond to C-banding with procentric bands on all autosomes and deep staining over most of the X and Y chromosomes. Polytene chromosomes were previously found in several larval and pupal tissue of Musca domestica. Polytene chromosome reference maps of the two sexual and the five autosomal chromosomes of Musca domestica from salivary gland cells are shown. Characteristic features of each chromosome are described identifying areas that are difficult to analyse.
Subject(s)
Chromosomes , Houseflies/genetics , Mitosis/genetics , Animals , Chromosome Banding , Chromosome Mapping , Karyotyping , Polymorphism, Genetic , Salivary Glands/cytologyABSTRACT
The results indicated that five species belonging to order Coleoptera and five parasite species belonging to order Hymenoptera were associated with blow fly and flesh fly larvae and pupae in Cairo region during the survey period.
Subject(s)
Coleoptera/physiology , Diptera/parasitology , Hymenoptera/physiology , Animals , Egypt , SeasonsABSTRACT
The daily production of progeny and longevity of the ectoparasitoid Dirhinus wohlfartiae (F.) was determined at 25 +/- 2 degrees C and 60-70% R.H. using Parasarcophaga aegyptiaca (Salem) pupae as hosts. The number of produced females progeny was greater than that of males. In presence of Wohlfahrtiae nuba, Musca domestica, Chrysomyia albiceps and Parasarcophaga aegyptiaca, females parasitoid preferred the two former species for oviposition.
Subject(s)
Diptera/parasitology , Hymenoptera/physiology , Animals , Female , Host-Parasite Interactions , Male , Pupa/parasitologyABSTRACT
While Dirhinus wohlfahrtiae was abundant at the moderate weather, it could not be recovered during winter months. The life cycle required 22.86 days at 25 +/- 2 degrees C and 65 +/- 5% R.H., longevity of adult males and females was equal to 35.78 and 39.83 day respectively. Under a constant relative humidity (67%), the development and multiplication of the parasitoid was more optimum at 25 degrees C than at 18 and 35 degrees C.