TABLE 2.

A summary of transcriptomic reports in D. officinale.

Tissues	Treatments or conditions	Research focus	References
S	–	Alkaloid, genetic markers	Guo et al., 2013
F, R, L, and S	–	Organ-specific study	Meng et al., 2016
L, S, R, and F	–	Polysaccharide synthesis, alkaloid synthesis	Shen et al., 2017
S and L	–	Variant splicing, sugar translocation	He et al., 2017
Eight tissues	–	Expression	Zhang et al., 2017
R, S, and L	–	Flavonoid biosynthesis	Yuan et al., 2020b
L, S, R, and F	–	Flowering	Chen Y. et al., 2017
L, R, S, and F	–	Polysaccharide synthesis	Zhang G. Q. et al., 2016
PLB, L	–	Alkaloid synthesis	Wang et al., 2021
Seedlings	Juvenile and adult	Polysaccharide synthesis	Zhang J. et al., 2016
S	Four stages	Mannan polysaccharides	He et al., 2015
R	Cadmium stress	Stress response	Jiang et al., 2020
L	MeJA	Accumulation of alkaloids	Chen et al., 2019
Seedlings	Far-red light	Shade-avoidance	Li H. et al., 2021
Seeds	Symbiotic and asymbiotic	Germination	Chen J. et al., 2020
L	Drought	Drought stress	Wan et al., 2018
L	CO2	Crassulacean acid metabolism	Zou et al., 2018
Germinated seeds	Symbiotic and asymbiotic seeds	Symbiotic association	Wang et al., 2018
L	Drought stress and stress removal	Drought stress	Zou et al., 2018
Plants	SA	Polysaccharide, flavonoid, and alkaloid synthesis	Niu et al., 2021
R	MeJA	Bibenzyl biosynthesis	Adejobi et al., 2021
S	Three provinces	Flavonoids	Lei et al., 2018
S	Three provinces	Anthocyanins	Ren et al., 2020
S, L, and R	Three species	Polysaccharide and alkaloid synthesis	Yuan et al., 2020a
Styles	Non-, self-, and cross-pollinated	Self-incompatibility	Chen Y. et al., 2021

S, stems; L, leaves; F, flowers; R, roots; PLB, protocorm-like bodies; Eight tissues – L, S, column, flower buds, lip, sepal, white root, and green root tip.