A Scottish independence supporter makes her feelings clear on a Yes march through Edinburgh

The prospect of another Scottish independence referendum is hanging in the balance, with a new opinion poll suggesting the SNP and Greens could emerge from the next Holyrood election tantalisingly short of a majority.

Although Nicola Sturgeon has demanded that the UK government agrees to let the Scottish parliament hold another referendum next year, there is little expectation of permission being granted this side of the next Scottish parliament in 2021.

However, Jeremy Corbyn has kept the door open for a vote if the SNP and Scottish Greens win a majority at Holyrood in 2021.

Today’s Panelbase poll of 1,009 people for The Sunday Times shows that their hopes could be dashed.

For the constituency vote, the poll — conducted on November 20-22 — puts