Genomic in situ hybridization identifies genome donors of Camellia reticulata (Theaceae)

▶ Camellia reticulata (Theaceae genus Camellia) is a famous woody flowering ornament plant in the world, and more interestingly it has a polyploid series varying from 2n = 2x = 30, 2n = 4x = 60 to 2n = 6x = 90, with the basic chromosome number of x = 15. ▶ Genomic in situ hybridization (GISH) was used to study the genome organization and evolution of C. reticulata. ▶ The results provide that the diploid C. reticultata, C. pitardii and C. saluenensis are the progenitors of C. reticultata.