Yield10 Bioscience, Inc.

Metabolix, Inc.

Nuseed Nutritional US Inc.

Jihong Tang

Kristi D Snell

Meghna Malik

Oliver P Peoples

Nirmala Sharma

Frank Anthony Skraly

Thomas Martin Ramseier

Nii Patterson

Madana M R Ambavaram

Jixiang Han

Zhigang Zhang

Karen Bohmert-Tatarev

Venkatesh Bollina

Matthew Martino

Claire Burkitt

Kieran Ryan

Venkata Tavva

Andrew Hertig

Yuanyuan Ji

A transgenic land plant that expresses a polyhydroxy alkanoate synthase seed specifically, with cytosolic localization is disclosed. The plant includes a nucleic acid encoding the polyhydroxy alkanoate synthase and a seed-specific promoter operably linked to the nucleic acid. The seed-specific promoter drives expression of the polyhydroxy alkanoate synthase in cytosol of cells of seeds of the plant. The polyhydroxy alkanoate synthase includes a catalytic domain. The polyhydroxy alkanoate synthase does not include any sequence positioned to mediate translocation of the catalytic domain across any membrane of the cells, thereby resulting in the polyhydroxy alkanoate synthase being expressed seed specifically, with cytosolic localization.

Transgenic land plants that express a polyhydroxyalkanoate synthase seed specifically with cytosolic localization

A genetically engineered land plant that expresses a protein that has homology to a plant invertase inhibitor and/or a pectin methylesterase inhibitor and that increases seed yield with increased expression ('an ISY protein') is disclosed. The plant comprises a modified gene for the ISY protein. The ISY protein comprises one or more of an ISY protein ofcomprising SEQ ID NO: 2 or a fragment,homolog, or ortholog thereof. The modified gene comprises a promoter and a nucleic acid sequence encoding the ISY protein. The promoter is non-cognate with respect to the nucleic acid sequence encoding the ISY protein. The modified gene is configured such that transcription of the nucleic acid sequence is initiated from the promoter and results in expression of the ISY protein. A genetically engineered land plant that expresses an RNA that increases seed yield with increased expression also is disclosed.

Genetically engineered land plants that express an increased seed yield protein and/or an increased seed yield RNA

Transgenic plants having enhanced yield and having enhanced seed yield are disclosed. The transgenic plants are transformed with a transgenic polynucleotide encoding one or more metabolic enzymes. The metabolic enzymes can be from any biological source. The transgenic polynucleotide(s) comprises a nucleic acid sequences encoding the metabolic enzymes under the control of functional plant promoters, the one or more metabolic enzymes are targeted to the plastids by the addition of plastid targeting signals. Optionally the functional plant promoters are seed specific promoters and the metabolic enzymes are targeted to the plastids by the addition of plastid targeting peptide heterologous to the metabolic enzymes. Methods of making the transgenic plants and transgenic polynucleotides are disclosed. The magnitude of the increases in seed yield achieved with these transgenic plants are unprecedented.

Plants with enhanced yield and methods of construction

Transgenic plants having enhanced yield and having enhanced seed yield are disclosed. The transgenic plants are transformed with a transgenic polynucleotide encoding one or more metabolic enzymes. The metabolic enzymes can be from any biological source. The transgenic polynucleotide(s) comprises a nucleic acid sequences encoding the metabolic enzymes under the control of functional plant promoters, the one or more metabolic enzymes are targeted to the plastids by the addition of plastid targeting signals. Optionally the functional plant promoters are seed specific promoters and the metabolic enzymes are targeted to the plastids by the addition of plastid targeting peptide heterologous to the metabolic enzymes. Methods of making the transgenic plants and transgenic polynucleotides are disclosed. The magnitude of the increases in seed yield achieved with these transgenic plants are simply unprecedented.

Transgenic plants, plant material, plant cells, and genetic constructs for synthesis of biopolymers, for example polyhydroxyalkanoates ('PHA') are provided. In one embodiment, the transgenic plants synthesize polyhydroxybutyrate ('PHB'). In one embodiment the transgenic plant encodes siRNA for one or more of the genes encoding enzymes for producing PHA. In a more preferred embodiment, the siRNA expression is under the control of an inducible regulatory element. In another embodiment, the transgenic plant contains transgenes that encode expression enzymes that will degrade the polymer. In a preferred embodiment, the expression of these enzymes is under the control of a germination specific, inducible, or minimal promoter. In another embodiment, the transgenic plant contains transgenes encoding enzymes that increase carbon flow for polymer synthesis. In a preferred embodiment, these transgenes encode enzymes that increase carbon flow in the Calvin Cycle.

Generation of high polyhydroxybutyrate producing oilseeds

Growing community of inventors

West Roxbury, MA, United States of America

Jihong Tang