THE Xyy_p SEX DETERMINING MECHANISM FOUND IN <i>SCEPTICUS INSULARIS</i> ROELOFS (CURCULIONIDAE: COLEOPTERA)

The Sex-Determining Mechanism of Drosophila Miranda.

SERIES of recent papers (DOBZHANSKY 1935; DOBZHANSKY and A TAN 1936; DOBZHANSKY 1937)) has described the unusual and interesting features which characterize the breeding behavior of Drosophila miranda and especially its method of sex determination. These papers have also reported the results of hybridization of miranda with the closely related and better known species, Drosophila pseudoobscura,...

Biology andManagement of the PecanWeevil (Coleoptera: Curculionidae)

Thepecanweevil,Curculio caryae (Horn), and its primaryhost, pecan,Carya illinoinensis (Wagenheim) K. Kochare indigenous to North America east of the Rocky Mountains. This review is presented to describe the biology, life stages, crop injury, monitoring approaches, and primary control strategies currently used for pecan weevil in pecan. Suggested economic thresholds are extrapolated from several...

The West Indian Peridinetini (Coleoptera: Curculionidae: Baridinae)

Two genera and nine species of Peridinetini are recognised in the West Indies; four of the species are newly described. Peridinetus Schönherr is represented in the Greater Antilles by P. concentricus (Olivier), P. decipiens Prena sp. n., P. fuscosignum Prena sp. n., P. poeyi Jacquelin du Val stat. res., P. roeselii (Boheman) and P. sexguttatus (Fabricius) comb. n. and Palliolatrix Prena in the ...

Comparative In silico Study of Sex-Determining Region Y (SRY) Protein Sequences Involved in Sex-Determining

Background: The SRY gene (SRY) provides instructions for making a transcription factor called the sex-determining region Y protein. The sex-determining region Y protein causes a fetus to develop as a male. In this study, SRY of 15 spices included of human, chimpanzee, dog, pig, rat, cattle, buffalo, goat, sheep, horse, zebra, frog, urial, dolphin and killer whale were used for determine of bioi...

Taxonomic use of endophallus in weevils of the genus sitona (coleoptera : curculionidae)