Combine first 5 ingredients in a medium bowl; make a well in center of mixture. Combine yogurt and next 3 ingredients; add to dry ingredients, stirring just until dry ingredients are moistened. Fold in blueberries.
Spoon batter into a 6- x 3- x 2-inch loafpan coated with cooking spray. Bake at 350° for 35 to 40 minutes or until a wooden pick inserted in center comes out clean. Remove from pan immediately, and let cool on a wire rack.