The JAAA was forced to choose between its own athletes after the sport's world body ruled that only one wild card would be allowed per country for each event. Jamaica had two runners in each race who were entitled to wild cards.
Bolt qualified for the 100m after winning the event at last year's Diamond League and the 200m after he won the event at the last world championships in 2011.
Blake also qualified for the 100m after he won the blue-riband race at the 2011 world titles. And Nickel Ashmeade qualified for the 200m, as last year's Diamond League winner.
Faced with a dilemma over who to choose and who to leave out, the JAAA's President Warren Blake announced its decision on Wednesday.
Oscar left out of Paralympic team
Johannesburg: As expected, Oscar Pistorius has been left off South Africa’s team for the Paral-ympic athletics world championships next month in France. South Africa named a team of 32 athletes on Thursday.
Santhi on track to become a coach
New Delhi: The Sports Authority of India has provided Santhi Soundarajan, the middle-distance runner who was stripped of her Asian Games medal after failing a gender test, a chance to pursue a diploma course in athletics from the National Institute of Sports, Bangalore.