Publication Type: | Journal Article |
Year of Publication: | Submitted |
Authors: | B. Han, Denlinger D. L. |
Volume: | 55 |
Issue: | 5 |
Pagination: | 415 - 418 |
Keywords: | *Genetic Variation, Amino Acid Sequence, Animals, development/metabolism, Diptera/chemistry/*genetics/*growth &, Insect Proteins/chemistry/*genetics/metabolism, Molecular Sequence Data, Pupa/chemistry/genetics/growth &, Sequence Alignment |
Abstract: | We report differences in the length of a specific region of the circadian clock gene period (per) that correlate with different capacities for pupal diapause in the flesh fly, Sarcophaga bullata. The conspicuous difference is located in a region we refer to as the putative C-terminal photoperiodic (CP) region. The length of the CP region correlates inversely with the incidence of diapause. A deletion of 33 amino acids in this region correlates with a significant increase in the incidence of diapause, from 78.1% to 93.0%, and an insertion of 9 amino acids in the same area correlates with a drop in the diapause incidence to 4.0%. This correlation suggests a possible functional role for this region of per in photoperiodism. |
Short Title: | J Insect Physiol |