There are several forms of autism that share a common risk gene profile
Common risks genes discovered for autism - brain short science news

While pinpointing the precise contribution of genes to the development of autism spectrum disorders has been difficult, researchers have now established a set of several genes that are common to all forms of autism.

Also, they have found genes that are risk factors for specific forms. The genes involved are responsible for proper development of the cortex of the brain.

As the hereditary factor of autism is about 80%, the new findings are expected to lead to better diagnosis and counseling for individual persons suffering from one of the forms of autism.

Read the full story: University of Aarhus
Scientific publication: Nature Genetics