The compositions and methods are provided that enhance the selection of transgenic plants having two T-DNA molecules integrated into a plant genome at different physical and genetic loci. The compositions are DNA constructs that comprise novel arrangements of T-DNA molecules containing genes of interest, positive selectable marker genes, and conditional lethal genes. The methods disclosed herein comprises transforming a plant cell to comprise the DNA constructs of the present invention, regenerating the plant cell into a plant and identifying independant transgene loci, where the selectable marker genes or transgenic elements can be segregated in the progeny.

The present invention relates to methods of synthesizing long-chain polyunsaturated fatty acids, especially eicosapentaenoic acid, docosapentaenoic acid and docosahexaenoic acid, in recombinant cells such as yeast or plant cells. Also provided are recombinant cells or plants which produce long-chain polyunsaturated fatty acids. Furthermore, the present invention relates to a group of new enzymes which possess desaturase or elongase activity that can be used in methods of synthesizing long-chain polyunsaturated fatty acids. In particular, the present invention provides ω3 destaurases, Δ5 elongases and Δ6 desaturases with novel activities. Also provided are methods and DNA constructs for transiently and/or stably transforming cells, particularly plant cells, with multiple genes.

The invention provides the genetically manipulated herbicide-resistant rubber producing dandelion plants and seed of said plants. Another aspect of the invention comprises progeny plants, or seeds, or regenerable parts of plants and seeds of the genetically manipulated herbicide-resistant dandelion plants. Applicants have further found that use of root cells for transformation and other optimized protocols enable quick transformation with high plant regeneration. Further, Applicants have developed the first transformation/regeneration protocol that is successful without the addition of hormone treatment.

The present invention relates to excision of explant material comprising meristematic tissue from cotton seeds. Methods for tissue preparation, storage, transformation, and selection or identification of transformed plants are disclosed, as are transformable meristem tissues and plants produced by such methods, and apparati for tissue preparation.

This invention relates to methods for identifying maize plants that having increased culturability and/or transformability. The methods use molecular markers to identify and to select plants with increased culturability and/or transformability or to identify and deselect plants with decreased culturability and/or transformability. Maize plants generated by the methods of the invention are also a feature of the invention.

The present disclosure describes reproducible methods for the Agrobacterium-mediated production of stable, genetically transformed, fertile tarwi plants (Lupinus mutabilis Sweet) having seed-specific expression of human adenosine deaminase enzyme (hADA) or a functional variant thereof. The method involves slicing a tarwi seed embryo to produce an explant; infecting the explant in co-cultivation medium containing an agrobacterium having a polynucleotide sequence encoding hADA or variant; thereby generating a transformed explant; elongating a transformed shoot from the transformed explant; and regenerating a transformed tarwi plant from the elongated shoot. Seeds and plants so formed are also described herein. Further, methods for the recovery and purification of recombinant hADA, or functional variant from a transformed tarwi plant are described.

There are provided compositions and methods for transforming plants, preferably monocot, and even more preferably, sugarcane. The transformation methods involve infection of plant tissue with Agrobacterium, and co-cultivation using culture medium comprising high concentrations of gelling agent, with the result of inhibiting the exacerbated growth of the bacteria and increasing the transformation frequencies. The invention includes regenerating transformed plants, and the transformed plants themselves.

A protein provided is: a) a protein with an amino acid sequence as shown in amino acids 1-264 of SEQ ID NO: 1; b) a protein that is associated with disease resistance and obtained after an amino acid sequence as shown in amino acids 1-264 of SEQ ID NO: 1 in a Sequence Listing is subjected to substitution and/or deletion and/or addition of one or several amino acid residues; c) a protein with an amino acid sequence as shown in SEQ ID NO: 1; or d) a protein that is associated with disease resistance and obtained after the amino acid sequence as shown in SEQ ID NO: 1 in the Sequence Listing is subjected to substitution and/or deletion and/or addition of one or several amino acid residues. Experiments demonstrate that the protein associated with disease resistance and the encoding gene thereof can be used to enhance plant disease resistance.

The present invention relates to a nanocarrier peptide sequence (SEQ ID NO: 6 KXPXXXXA/V/GXGNXX; wherein X is selected from amino acid R, K, A or H. The present invention also relates to the method for cellular delivery, by implementing the steps of: complexation of a peptide nanocarrier sequence: KXPXXXXA/V/GXGNXX; where X is selected from amino acid R,K,A and H having SEQ ID NO: 6 with a macromolecule to obtain a complex; and administering the complex to a targeted mammalian or plant cell or tissue.

The present disclosure relates, in some embodiments, to a method of reducing levels of Candidatus Liberibacter solanacearum (Lso) in a potato, the method including (a) transforming the potato with an expression vector to generate a transformed potato, where the expression vector may include in a 5′ to 3′ direction: an expression control sequence; an exogenous nucleic acid operably linked to the expression control sequence; and a 3′ termination sequence operably linked to the exogenous nucleic acid; and (b) cultivating the transformed potato in conditions suitable for expression of the exogenous nucleic acid. According to some embodiments an exogenous nucleic acid may include a nucleic acid sequence having at least 98% identity to a nucleic acid sequence selected from the group consisting of SEQ ID NO: 4 and SEQ ID NO: 6.