Preheat oven to 375° F. Line two 12-cup muffin tins with 16 paper muffin liners.Mix the flours, oats, wheat germ, sugar, baking soda, baking powder, cinnamon and salt together in a large mixing bowl. Mix the egg, yogurt, milk and oil in a second bowl. Add the wet ingredients to the dry ingredients and stir until just combined (do not over mix). Gently stir the blueberries into the batter.Scoop the batter into the muffin cups, filling them about ¾ full (you should have 16 muffins). Bake 18-20 minutes until muffins are golden brown and a toothpick inserted into the center comes out clean. Cool in the pan for 5-10 minutes and then turn the muffins onto a rack and cool completely. Muffins can be served right away, refrigerated or frozen for later use.