De novo sequencing of the Hypericum perforatum L. placental tissue transcriptome

Comparison of transcriptome was carried on between three genotypes showing glandless placentas (G-) and three genotypes characterized by heavily glanded placentas (G++ = average > 40 dark glands per placental tissue).Three stages of development were included in the comparison:mRNAs were isolated from placentas of three G- (H06-1369, H06-1489, H06-3251) and three G++ lines (HyPR-05, HyPR-09, H06-1988) at pre-differentiation (FB25), differentiation (FB45) and post-differentiation stage (FB75).