Fig. 1

In silico expression profiles (fold expression) of the unitranscripts of the three switchgrass green tissue-specific genes in different tissues. The cDNA sequences of the three switchgrass green tissue-specific genes as well as the PvUbi1 gene, i.e., Pavirv00047797m, Pavirv00033161m, Pavirv00009702m, and Pavirv00038913m, were used to blast the Noble Foundation switchgrass gene expression atlas PviUT V1.2 (http://switchgrassgenomics.noble.org/). AP13CTG19188, KanlCTG00012, AP13CTG07332, and KanlCTG00705 were the unitranscripts of PvLhcb, PvPEPC, PvPsbR, and PvUbi1, respectively. E4-root, whole root system of E4 stage plant; E4-crown, whole crown of E4 stage plant; E4-node, pooled nodes of E4 the tiller; E4-LFB, pooled leaf blade from E4 tiller; E4-LSH, pooled leaf sheath of the E4 tiller; E4i3m, middle 1/5 fragment of internode 3; E4i3mVB, vascular bundle isolated from 1/5 fragment of internode 3; E4i4t, top 1/5 fragment of internode 4; E4i4m, middle 1/5 fragment of internode 4; E4i4b, bottom 1/5 fragment of internode 4; inflo-meristem, inflorescence of rachis, primary and secondary branch meristem initiation stages 0.5–3.0 mm; inflo-floret, inflorescence of glume and floret development stages 10–20 mm; Inflo-REL, inflorescence 50–150 mm; Inflo-PEM, inflorescence > 200 mm