Altered levels of the Taraxacum kok-saghyz (Russian dandelion) small rubber particle protein, TkSRPP3, result in qualitative and quantitative changes in rubber metabolism

► TkSRPP3, TkSRPP4, and TkSRPP5 are associated with Tk root rubber particles. ► TkSRPP3 expression and Tk root rubber accumulation correspond. ► Decreasing TkSRPP3 gene expression results in decreased rubber content and quality. ► TkSRPP3 may help determine the amount and quality of rubber produced in Tk roots.