About Agaricus bisporus var. burnettii JB137-S8
Agaricus bisporus is an edible basidiomycete mushroom native to grasslands in Europe and North America. It has two color states while immature—white and brown—both of which have various names. When mature, it is known as Portobello mushroom.
When immature and white—this mushroom may be known as common mushroom, button mushroom, white mushroom, cultivated mushroom, table mushroom, and champignon mushroom. When immature and brown—this mushroom may be known variously as Swiss brown mushroom, Roman brown mushroom, Italian brown, Italian mushroom, cremini or crimini mushroom, brown cap mushroom, or chestnut mushroom. and is one of the most commonly and widely consumed mushrooms in the world.
This species currently has no variation database. However you can process your own variants using the Variant Effect Predictor: