Plant leaves have functionally specialized upper and lower sides. Two recent studies show that these opposite identities are derived from a pre-pattern in the shoot meristem and the border between… Click to show full abstract
Plant leaves have functionally specialized upper and lower sides. Two recent studies show that these opposite identities are derived from a pre-pattern in the shoot meristem and the border between them is maintained by mobile small RNAs with morphogen-like properties.
               
Click one of the above tabs to view related content.