Drosophila fly article dating before 1950
Flies with mutations in this gene have no heart, just like the tinman from OZ.
Finally, the scientists discovered a strain of the Spiroplasma bacterium with a mutation in the Spaid gene, which showed a reduced ability to kill males.The team of scientists studied the function of a special developmental gene of the Hox gene family. melanogaster continues to be widely used for biological research in genetics, physiology, microbial pathogenesis, and life history evolution.But despite several attempts, the identity of this of this male killer has remained a mystery.Now, Professor Bruno Lemaitre and Dr Toshiyuki Harumoto at EPFL have identified the elusive male-killing bacterial factor, solving the mystery. The gene for Spaid is known to encode a protein that has particular structural characteristics needed for its localization and activity inside the bacterium (ankyrin repeats and de-ubiquitinase domains).as “the poster child for genetics” because of the ease at which they can be manipulated and the spped at which effects can be observed.
These sticky insect are obviously very different to humans, but studying them is stil beneficial as they carry many genes which are orthologs to the genes in vertebrates.
Flies with mutations in Halloween Genes have altered exoskeleton development, giving the embryos a spooky appearance.
This gene encodes a Toll-like receptor (TLR) and mutations in this gene result in defect in salivary gland invagination.
The molecular mechanism underlying this process has however never been clarified.
The original idea was that Spiroplasma produces an "androcidin" toxin, which kills males.
The scientists found that just expressing Spaid in fruit flies was enough to recreate all the phenotypes associated with male killing in the insect.