Preheat oven to 375°. In a large bowl, whisk the first 6 ingredients. In another bowl, whisk egg whites, egg, milk, sour cream, applesauce, oil and vanilla until blended. Add to flour mixture; stir just until moistened. Gently fold in berries., Transfer batter to a 9x5-in. loaf pan coated with cooking spray. Bake until a toothpick inserted in center comes out clean, 50-60 minutes. Cool in pan 10 minutes before removing to a wire rack to cool.