Comparative Transcriptome Analysis Reveals Stem Secondary Growth of Grafted 'Rosea' Scion and 'Innermis' Rootstock.

Grafted plant is a chimeric organism formed by the connection of scion and rootstock through stems, so stem growth and development become one of the important factors to affect grafted plant state. However, information regarding the molecular responses of stems secondary growth after grafting is limited. A grafted plant, with 'Rosea' as the scion (Rr_scion) grafted onto 'Innermis' as the stock (Rm_stock), has been shown to significantly improve stem thickness.