Turnip sawfly
| Turnip sawfly | |
|---|---|
 | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Suborder: | Symphyta |
| Superfamily: | Tenthredinoidea |
| Family: | Tenthredinidae |
| Genus: | Athalia |
| Species: | A. rosae |
| Binomial name | |
| Athalia rosae (Linnaeus, 1758) | |
The turnip sawfly Athalia rosae is a typical sawfly with dark green or blackish 18–25 mm long larvae that feed on plants of the brassica family, and can sometimes be a pest. It winters below the ground, emerging in early summer as a 7–8 mm adult with a mainly orange body and a black head. The adult feeds on nectar.[1]
The turnip sawfly was found to result in diploid males and females after sister-brother matings. This differs from normal haplodiploid hymenoptera and after a further cross causing triploid males, resulted in evidence that sex determination is controlled by a single locus. [2] The sawflies have been found to sequester glucosinolates like many insects in larval stages. Removal of various glucosinolates has been shown to reduce sensitivity to host plants in later adult stages. The fact that glucosinolates being removed causes reduced sensitivity to future possible host plants has been used to argue that these chemicals are important in specific larval patterning to future host plant options. [3] Due to no current primitive Hymenoptera, the turnip sawfly is being worked on for genome sequencing. This effort will add to the planned i5K, the effort to sequence 5,000 insect genomes in 5 years. Proposed time line for an annotated genome is Fall of 2013. [4]
References
- ↑ "Turnip Sawfly – Athalia rosae". NatureSpot. Archived from the original on 24 September 2012. Retrieved 24 September 2012.
- ↑ "Sex Determination in Turnip Sawfly".
- ↑ "Chemosensory of Turnip Sawfly".
- ↑ "Baylor College of Medicine Turnip Sawfly".