The Texas A&m University System

Mona B Damaj

T Erik Mirkov

Terry L Thomas

Avutu Sambi Reddy

Keerti S Rathore

Siva Prasad Kumpatla

Chandrakanth Emani

Avutu Sam Reddy

Erik T Mirkov

The present disclosure relates, in some embodiments, to compositions, organisms, systems, and methods for expressing a gene product in a plant using a expression control sequence (ECS) operable in monocots and/or dicots. For example, (i) an isolated nucleic acid may comprise an ECS (e.g., a sugarcane bacilliform virus promoter) and, optionally, an exogenous nucleic acid (ExNA) operably linked to the ECS; (ii) an expression vector may comprise an ECS; an ExNA; and, optionally, a 3' termination sequence, wherein the ECS has promoter activity sufficient to express the ExNA in at least one monocot and at least one dicot; (iii) a microorganism, plant cell, or plant may comprise an isolated nucleic acid; (iv) a method for constitutively expressing an ExNA in a plant (e.g., a monocot and/or a dicot) may comprise, contacting an expression vector with the cytosol of a cell of the plant, wherein the expression vector comprises the ExNA and an ECS operable to drive expression of the ExNA; and/or (v) a method of directing constitutive expression of a nucleic acid in a plant (e.g., a monocot and/or a dicot) may comprise transforming the plant with an expression nucleic acid comprising an ECS, an ExNA, and a 3&#x2032; termination sequence.

Compositions, organisms, systems, and methods for expressing a gene product in plants

The present disclosure relates, according to some embodiments, to compositions, organisms, systems, and methods for expressing a gene product in a plant (e.g., a monocot) using a promoter operable in one or more plant tissues and/or cells. In some embodiments, an artificial nucleic acid may comprise an expression control sequence having the sequence selected from the sequence of nucleotides 1-4710 of SEQ ID NO: 1 and the sequence of nucleotides 1137-4710 of SEQ ID NO: 1, wherein the expression control sequence has stem-regulated promoter activity in at least one monocot (e.g., at least two monocots).

Stem-specific promoter from sugarcane dirigent gene

The invention is directed to isolated promoters from stem-regulated, defense-inducible genes, such as OMT promoters. The promoters are useful in expression cassettes and expression vectors for the transformation of plants. Particularly, the invention provides transgenic plants of rice and sugarcane that have been modified such that expression of a heterologous coding sequence is directed by an OMT promoter and is limited to stem tissues or may be upregulated by the presence of a defense-inducing agent. The invention also discloses methods for producing the expression vectors and transgenic plants.

Stem-regulated, plant defense promoter and uses thereof in tissue-specific expression in monocots

The invention is directed to isolated promoters from stem-regulated, defense-inducible genes, such as JAS promoters. The promoters are useful in expression cassettes and expression vectors for the transformation of plants. Particularly, the invention provides transgenic plants of rice and sugarcane that have been modified such that expression of a heterologous coding sequence is directed by an JAS promoter and is limited to stem tissues or may be upregulated by the presence of a defense-inducing agent. The invention also discloses methods for producing the expression vectors and transgenic plants.

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College Station, TX, United States of America

Mona B Damaj