FOREX-Dollar index rebounds to one-week high, quarter-end flows help

* Japanese yen, Swiss franc dip vs USD as trade war fears recede

* Sterling buffeted by Brexit headlines, retail data

(Updates market action, adds quotes) NEW YORK, March 28 (Reuters) - The dollar rose to a one-week high against a basket of major currencies on Wednesday, rebounding further from a five-week low touched the prior session, supported by quarter-end flows into the greenback as investors also shook off fears of a trade war. The dollar index, which measures the greenback against a basket of six other major currencies, was up 0.79 percent at 90.08. The index has rallied more than 1 percent since hitting a five-week low of 88.942 on Tuesday. "I think what we are seeing is a continuation of bit of a theme that started earlier this week, that is, we are seeing a slight reduction in the overall level of concern about a looming trade war," said Omer Esiner, chief market strategist with Commonwealth Foreign Exchange in Washington. Global markets were shaken this month when U.S. President Donald Trump moved to impose tariffs on Chinese goods and Beijing threatened similar measures. But fears of a full-blown trade war have eased on hopes negotiations can bring a compromise. "That has translated into a moderating sense of concern and that's why we are seeing kind of an unwinding of safe-haven bets," Esiner said. The dollar rose 1.41 percent against the Japanese yen and 1.07 percent against the Swiss franc, viewed as safe-haven currencies in times of market turbulence. Quarter-end and month-end flows boosted the dollar as global asset and fund managers rebalanced portfolios, analysts said. Data showing fourth-quarter U.S. economic growth slowed less than estimated also supported the greenback. The bounce in the dollar came a bit early with traders likely looking to flatten up their books ahead of the long Easter weekend, Esiner said. The euro slipped 0.76 percent against the dollar, but was on track for a fifth straight quarterly gain, the longest such streak since 2008. Sterling was buffeted by crosswinds as growing hopes Britain will propose a new solution for the Irish border dispute was offset by disappointment over data showing British retail sales fell in March for the first time in five months. Sterling was 0.52 percent lower at $1.4081. The Canadian dollar was slightly weaker against the greenback ahead of Canadian economic data on Thursday.

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Currency bid prices at 1614 EDT (2014 GMT):

Description RIC Last U.S. Close Pct YTD Pct High Bid

Low Bid

Previous Change Change

Session

Euro/Dollar EUR= $1.2307 $1.2401 -0.76 +2.59 +1.2422 +1.2300 Dollar/Yen JPY= 106.8300 105.3300 +1.42 -5.18 +107.0100 +105.3400 Euro/Yen EURJPY= 131.44 130.62 +0.63 -2.77 +131.7100 +130.6100 Dollar/Swiss CHF= 0.9566 0.9466 +1.06 -1.82 +0.9578 +0.9462 Sterling/Dollar GBP= 1.4080 1.4154 -0.52 +4.20 +1.4200 +1.4072 Dollar/Canadian CAD= 1.2917 1.2881 +0.28 +2.70 +1.2932 +1.2863 Australian/Doll AUD= 0.7664 0.7677 -0.17 -1.76 +0.7702 +0.7654

ar

Euro/Swiss EURCHF= 1.1775 1.1742 +0.28 +0.74 +1.1803 +1.1738 Euro/Sterling EURGBP= 0.8739 0.8760 -0.24 -1.62 +0.8768 +0.8735 NZ Dollar/Dolar NZD= 0.7209 0.7267 -0.80 +1.74 +0.7274 +0.7204 Dollar/Norway NOK= 7.8651 7.7175 +1.91 -4.17 +7.8800 +7.7062 Euro/Norway EURNOK= 9.6800 9.5742 +1.11 -1.71 +9.7065 +9.5682 Dollar/Sweden SEK= 8.3526 8.2296 +0.73 +1.84 +8.3606 +8.2224 Euro/Sweden EURSEK= 10.2814 10.2064 +0.73 +4.50 +10.2975 +10.2062

(Reporting by Saqib Iqbal Ahmed; Editing by David Gregorio and Susan Thomas)