Two opsin genes from the vetch aphid, Megoura viciae
Article first published online: 25 DEC 2001
Insect Molecular Biology
Volume 9, Issue 2, pages 197–202, April 2000
How to Cite
Gao, N., Foster, R. G. and Hardie, J. (2000), Two opsin genes from the vetch aphid, Megoura viciae. Insect Molecular Biology, 9: 197–202. doi: 10.1046/j.1365-2583.2000.00180.x
- Issue published online: 25 DEC 2001
- Article first published online: 25 DEC 2001
- Received 11 October 1999;accepted 23 December 1999.
- Megoura viciae;
- visual pigments;
- in situ hybridization
The cDNAs of two opsins (Megopsin1 and Megopsin2) from the vetch aphid, Megoura viciae, have been sequenced and encoded for gene products with 378 and 371 amino acid residues, respectively. Phylogenetic analysis reveals that Megopsin1 falls into the insect long-wavelength opsin group and Megopsin2 is a member of the insect UV-wavelength opsins. Both opsins share the key features of G-protein-coupled receptors and the specific motifs of photopigments. In situ hybridization demonstrated that the transcripts of Megopsin1 and Megopsin2 were expressed in the retinula cells of the compound eyes.