Figure 4.

Possible regulatory mechanism involving differentially expressed circRNAs and their target genes in wheat leaves under dehydration stress. Psb28, photosystem II 13 kDa protein; PsbD, the photosystem I subunit II; PsbK, the photosystem I subunit X; PetC, cytochrome b6f complex iron-sulfur subunit; PetH, ferredoxin-NADP⁺ reductase; the light-harvesting complex II chlorophyll a/b binding protein 1 (LHCB1); Aux1, auxin influx carrier; ARF, auxin response factor; BSK, brassinosteroid signaling kinase; TGA, salicylic acid signaling transcription factor; NADP(+), NADPH dehydrogenase; PAO, polyamine oxidase; NgtA, 1-naphthol glucuronyltransferase; ArgA, amino-acid N-acetyltransferase.