Negative-working lithographic printing plate precursor

A negative-working lithographic printing plate precursor, comprising:

• a substrate and a negative-working imageable layer disposed on the substrate,
• wherein:
• the imageable layer is removable by a lithographic printing ink or a fountain solution, or both a lithographic printing ink and a fountain solution, and the imageable layer comprises:
• (A) at least one free radical polymerizable compound,
• (B) at least one free radical polymerization initiator, and
• (C) at least one polymer which has a polysaccharide backbone and a radical polymerizable group that is connected to the polysaccharide backbone via a linkage comprising two urea bonds, two urethane bonds, or a urea bond and a urethane bond, and the polymer is different from (A).