By Kevin Buckland TOKYO (Reuters) – The dollar extended a rebound versus major peers on Friday, also resuming its rally against the yen, ahead of a key U.S. jobs report that could cement the potential for a 50 basis-point Federal Reserve interest rate hike next month. The U.S. currency also garnered support due to its status as a preeminent safe haven, with peace talks between Russia and Ukraine stumbling, though they are set to resume later on Friday. The dollar index, which gauges the greenback against six counterparts including the euro and yen, rose 0.10% to 98.420, building on Thursday’s …

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