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Fig. 4 | Biotechnology for Biofuels

Fig. 4

From: Switchgrass SBP-box transcription factors PvSPL1 and 2 function redundantly to initiate side tillers and affect biomass yield of energy crop

Fig. 4

Overexpression of a PvSPL2 chimeric repressor in switchgrass. a Morphological characterization of PvSPL2SRDX-overexpressing transgenic switchgrass plants. Representative plants from group I (TPvSPL2SRDX1) and group II (TPvSPL2SRDX4) are shown. Control plant was produced with pANIC6B empty vector from the same batch of experiment. b Expression levels of PvSPL2 in transgenic switchgrass plants were revealed by qRT-PCR. Switchgrass Ubq2 was used as the reference for normalization. PvSPL2: sum of exo- and endo-PvSPL2 transcript versions. c Tiller number of transgenic switchgrass plants. d Dry matter biomass yield of transgenic switchgrass plants. The transgenic and control plants were harvested after 4-month growth in the greenhouse. Values are mean ± SE (n = 3)

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