Recombinant DNA molecules and constructs including sequences derived from Tripsacum dactyloides are provided, which are useful for modulating gene expression in plants. Transgenic plants, plant cells, plant parts, and seeds are also provided, comprising a recombinant DNA molecule operably linked to a heterologous transcribable DNA molecule, as well as methods of their use.

The subject invention concerns materials and methods for increasing and/or improving photosynthetic efficiency in plants, and in particular, C3 plants. In particular, the subject invention provides for means to increase the number of bundle sheath (BS) cells in plants, to improve the efficiency of photosynthesis in BS cells, and to increase channels between BS and mesophyll (M) cells. In one embodiment, a method of the invention concerns altering the expression level or pattern of one or more of SHR, SCR, and/or SCL23 in a plant. The subject invention also pertains to genetically modified plants, and in particular, C3 plants, that exhibit increased expression of one or more of SHR, SCR, and/or SCL23. Transformed and transgenic plants are contemplated within the scope of the invention. The subject invention also concerns methods for increasing expression of photosynthetically important genes in a plant, wherein one or more genes of interest are operably linked with a plant SHR, SCR or SCL23 promoter sequence and expressed in a plant.

The invention provides recombinant DNA molecules and constructs, as well as their nucleotide sequences, useful for modulating gene expression in plants. The invention also provides transgenic plants, plant cells, plant parts, and seeds comprising the recombinant DNA molecules operably linked to heterologous transcribable DNA molecules, as are methods of their use.

The present disclosure provides the identification of genes involved in sucker growth in tobacco. Also provided are promoters that are preferentially active in tobacco axillary buds. Also provided are modified tobacco plants comprising reduced or no sucker growth. Also provided are methods and compositions for producing modified tobacco plants comprising reduced or no sucker growth.

The present invention is directed to promoter sequences and promoter control elements, polynucleotide constructs comprising the promoters and control elements, and methods of identifying the promoters, control elements, or fragments thereof. The invention further relates to the use of the present promoters or promoter control elements to modulate transcript levels.

The present invention is directed to promoters that have particular utility in driving root-specific expression of heterologous genes that impart increased agronomic, horticultural and/or pesticidal characteristics to a given transgenic plant. The present invention is also drawn to DNA molecules comprising the promoters of the invention and transformed plant tissues containing DNA molecules comprising a promoter of the invention operably linked to a heterologous gene or genes, and seeds thereof.

The present disclosure provides approaches for reducing tobacco-specific nitrosamines (TSNAs) in tobacco. Some of these approaches include genetically engineering tobacco plants to increase one or more antioxidants, increase oxygen radicle absorbance capacity (ORAC), or reduce nitrite. Also provided are methods and compositions for producing modified tobacco plants and tobacco products therefrom comprising reduced TSNAs.

The invention provides recombinant DNA molecules and constructs, and their nucleotide sequences, useful for modulating gene expression in plants. The invention also provides transgenic plants, plant cells, plant parts, and seeds comprising a recombinant DNA molecule comprising a DNA molecule operably linked to a heterologous transcribable DNA molecule, as well as methods of their use.

Provided are compositions and methods for expressing a transgene in plant cells and/or plant tissues using regulatory elements, including the promoters, 5′UTR, 3′ UTRs, and/or terminators isolated from Glycine max chlorophyll binding Ab genes.

The disclosure provides nucleic acid constructs that include a TPR-domain suppressor of STIMPY (TSS) promoter operably linked to an isopentenyl-transferase 7 (IPT7) coding sequence. The introduction of such a construct into a plant or plant cell generates transgenic plants having increased root mass and greater carbon sequestration capacity. Plants generated using the methods are provided. Such plants can include other desirable traits.