Liberal Democrat deputy leader Simon Hughes has indicated that the party will demand concessions on issues such as NHS reform and immigration in retaliation for the Conservative conduct of the campaign against electoral reform.
Mr Hughes said the coalition Government would survive the bruising experience of the Alternative Vote referendum, but that in future it was likely to stick to those policies which were included in last year's Coalition Agreement. Anything outside the agreement would become policy only if agreed by Lib Dems, he said.
His comments came after former party leader Lord Ashdown launched a scathing attack on David Cameron, accusing the Prime Minister of a "breach of faith" in permitting a largely Conservative-funded No campaign which targeted Nick Clegg personally.
While Lord Ashdown agreed the coalition would survive, he made clear that the nature of the campaign would change the atmosphere of the Conservative/Liberal Democrat partnership.
In an interview with The Times, Lord Ashdown said: "You cannot fund a deeply vicious campaign to destroy the personality of your partner, who has been unmoved in his brave support of the coalition, without there being consequences. When it comes to the bonhomie of the Downing Street rose garden, it's never again glad confident morn."
Mr Hughes told the BBC the No camp had conducted a "fundamentally fallacious campaign" which would affect the way the coalition partners behaved in Government.
"The effect on the coalition is it will reduce trust in the Tory party among our members and amongst colleagues," said Mr Hughes. "The coalition is a five-year deal. That won't change, because that is in the national interest. We did a deal and we will keep to that deal.
"But it will mean, from now on, we are very clear that we will keep to what the coalition has agreed in the Coalition Agreement - that other stuff will not be allowed in as policy unless our party has agreed to it, and I guess that the same will apply for the Tory party."
Conservative co-chairman Baroness Warsi defended her party's campaign, telling the BBC: "I think the whole name-calling thing is a side act. What was important in this AV referendum was the principles we were fighting on. I absolutely believe the campaign the Conservative Party fought was a clean campaign, based upon principles and based upon our position, which was clear from the outset."
Labour's deputy leader, Harriet Harman, said voters found the spat between the coalition parties "very unedifying". She said Mr Clegg had been "duped" by Mr Cameron in agreeing to hold the AV referendum on the same day as the local council elections.