Temperature and the progeny sex-ratio in Sciara ocellaris (Diptera, Sciaridae)

Observations on the inheritance of sex in Sciara ocellaris (Diptera).

The genus Sciara Meigen (Diptera, Sciaridae) in New Caledonia, with the description of two new species.

The genus Sciara Meigen includes two species in New Caledonia, both newly described: Sciara insulana sp. n. and S. turgidula sp. n. The species are diagnosed and figured.

Errors in the Elimination of X Chromosomes in SCIARA OCELLARIS.

It was previously assumed that the X-linked recessive mutation, sepia, induced errors in X-chromosome elimination during early embryogenesis of Sciara ocellaris. The results obtained in the present analysis corroborate this assumption and permit a further classification of the type of error this mutation induces. Among 85,244 individuals analyzed, three kinds of aberrant flies were identified: ...

Role of microtubules and microtubule organizing centers on meiotic chromosome elimination in Sciara ocellaris.

Spindle formation and chromosome elimination during male meiosis in Sciara ocellaris (Diptera, Sciaridae) has been studied by immunofluorescence techniques. During meiosis I a monopolar spindle is formed from a single polar complex (centrosome-like structure). This single centrosomal structure persists during meiosis II and is responsible for the non-disjunction of the maternal X chromatids. Du...

The gene Sex-lethal of the Sciaridae family (order Diptera, suborder Nematocera) and its phylogeny in dipteran insects.

This article reports the cloning and characterization of the gene homologous to Sex-lethal (Sxl) of Drosophila melanogaster from Sciara coprophila, Rhynchosciara americana, and Trichosia pubescens. This gene plays the key role in controlling sex determination and dosage compensation in D. melanogaster. The Sxl gene of the three species studied produces a single transcript encoding a single prot...