The Yorkshire batsman, 28, was unveiled by the England and Wales Cricket Board at a press conference at Lord's.

The role became available following Hussain's decision to step down at the end of England's disappointing World Cup campaign in March.

Vaughan was chosen to lead his country - his first assignment will be next month in a three-match series against Pakistan - ahead of opening partner Marcus Trescothick and Surrey's Adam Hollioake, who relinquished the England limited-overs captaincy five years ago.

Although Vaughan was not an automatic choice in the one-day line-up as recently as six months ago, his remarkable form in Test cricket - where he has scored seven centuries in the past 12 months - has confirmed his place in both forms of the game.

Hussain continues as the leader of the Test side this summer in series against Zimbabwe and South Africa, meaning England will have separate captains again as they did when Michael Atherton and Hollioake were in charge.

Vaughan said: "It's a great honour to captain your country and I had no hesitation in accepting when the selectors offered me the job. It's something that I have always wanted to do and I intend to enjoy it.

"Nasser is an inspirational leader and he will be a tough act to follow as one-day captain. But every captain has his own style of leadership and I want to do the job in my own way.

"I am under no illusions. Whether it's Test or one-day cricket, the England captain's decisions are always under the microscope. That doesn't bother me. I am a big believer in the team ethic and if England are to improve at one-day level, we need 11 captains out there, not just one."

Chairman of selectors David Graveney said: "We have no qualms about splitting the Test and one-day captaincy in this way."

Neither Vaughan nor Hussain will be members of the four-strong selection panel following the splitting of the captaincy, although both will have input to the selection process.

Former Australian Test player Rod Marsh, the ECB's national academy director, has been introduced as a new selector, joining Graveney, coach Duncan Fletcher and Geoff Miller on the panel.