Transcriptomic profiling of fruits of four raspberry cultivars with different pigmentation

The developing fruit harvested at three developmental stages, 'unripe', 'turning' and 'mature' from the four raspberry cultivars investigated, 'Anitra', Glen Ample' and 'Veten' and 'Varnes' were used for gene expression analysis. The fruit of 'Varnes' shows a clear lack of red pigmentation at the 'turning' and 'mature' stages, with fruit displaying a yellow colour in the 'unripe' and 'turning' stages, turning apricot in colour when fully mature, in contrast to the red colouration of the other three cultivars. A total of 36 RNA libraries (four cultivars × three fruit developmental stages × three biological replicates) were paired-end sequenced.