Paul Wheelhouse MSP, from Berwickshire, is to join Alex Salmond's new cabinet.
The economist will take over the position of Minister for Environment and Climate Change, as Stewart Stevenson steps down.
As a result of the reshuffle, Deputy First Minister Nicola Sturgeon will take on the new role of spearheading the Scottish Government's independence campaign.
The First Minister said the changes have been made to assist in taking the Programme for Scotland forward, as well as preparing Scotland for the independence referendum in 2014.
More top news
Poppy bird feeders are flying off the shelves in Dumfries. They're being sold to raise money for the Royal British Legion.
A charity set up in memory of a teenager from Egremont has raised £100,000.
A block of public toilets in Keswick have been converted into apartments to help solve the town's affordable housing crisis.