Genetics and crop improvement researcher Laima Antanaviciute said: "We have a large reference database of plant DNA so can tell if a sample is true to type. If you have a heritage orchard, we can do leaf samples to identify your fruit.
"We've already had interest from owners who want to catalogue their orchards. It can also be used to resolve legal disputes. Is the plant that has been delivered to you actually what was advertised? A test will tell you."