Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:The functional studies of other AG-like genes gave very similar results, not only in Arabidopsis (Liljegren et al., 2000) but also in tobacco (Fourquin and Ferrandiz, 2012) and tomato
 (Gimenez et al., 2010), suggesting that AG-like genes may play a prominent role late in fruit development and‚Ä¶
Category: