Hughes, 25, who played 26 Tests, died from bleeding on the brain on November 27 last year after being hit on the base of the skull by a rising ball at the Sydney Cricket Ground during a domestic match.
His death, a freak accident, stunned Australia and the world cricket community, sparking an outpouring of grief.
At the request of Hughes' family, the tributes one year on were kept simple.
Australia and New Zealand players at Adelaide Oval wore black armbands as did Sheffield Shield cricketers in their matches around Australia today.
Before the start of the Test, Australia captain Steve Smith tweeted, "1 year has passed since we lost our great mate. Will be thinking of you out in the middle today as always Bruz. #63notout #408forever."
Smith's predecessor Michael Clarke, who described Hughes as a little brother, also tweeted, "Wish you were here #408."
A ceremony was held in Adelaide at 4:08 pm local time during the first break of play.

Hughes was the 408th Australian Test cricketer.

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