The Salk Institute for Biological Studies

University of Pennsylvania

University of California

Joseph R Ecker

Hongwei Guo

Joseph J Kieber

Jose Alonso

Ronald Mark Evans

Martin F Yanofsky

Brian J Staskawicz

Andrew F Bent

Anna N Stepanova

Anne Lehman

Sarah J Liljegren

Madge Rothenberg

Ryan Lister

Gregg Roman

Robert B McGrath

Hong Qiao

Liang Song

Ramlah Nehring

Roger W Innes

This disclosure provides methods of downregulating or eliminating gene expression of one or more Dynamic Influencer of Gene expression (DIG) and/or one or more DIG-like (DIL) sequences in plants and plant cells, as well as constructs and compositions useful in such methods. Such recombinant plants can have decreased abscisic acid (ABA) sensitivity, decreased salt sensitivity, or both.

Environmental stress response transcriptional regulatory network

Provided herein are methods of characterizing the epigenetic signature of human induced pluripotent stem cells. The methods are useful in identifying human induced pluripotent stem cells (hiPSCs), diagnostic markers for incomplete hiPSCs reprogramming, and characterization of the efficacy of different reprogramming techniques.

Epigenomic induced pluripotent stem cell signatures

ETP1 and ETP2 bind to EIN2 and modulate plant ethylene sensitivity.

ETP1 and ETP2 regulate plant ethylene response

The relationship between F-box proteins and proteins involved in the ethylene response in plants is described. In particular, F-box proteins may bind to proteins involved in the ethylene response and target them for degradation by the ubiquitin/proteasome pathway. The transcription factor EIN3 is a key transcription factor mediating ethylene-regulated gene expression and morphological responses. EIN3 is degraded through a ubiquitin/proteasome pathway mediated by F-box proteins EBF1 and EBF2. The link between F-box proteins and the ethylene response is a key step in modulating or regulating the response of a plant to ethylene. Described herein are transgenic plants having an altered sensitivity to ethylene, and methods for making transgenic plant having an altered sensitivity to ethylene by modulating the level of activity of F-box proteins. Methods of altering the ethylene response in a plant by modulating the activity or expression of an F-box protein are described. Also described are methods of identifying compounds that modulate the ethylene response in plants by modulating the level of F-box protein expression or activity.

Regulating the ethylene response of a plant by modulation of F-box proteins

The invention relates to transgenic plants having reduced sensitivity to ethylene as a result of having a recombinant nucleic acid encoding an F-box protein that interacts with a EIN3 involved in an ethylene response of plants, and a method of producing a transgenic plant with reduced ethylene sensitivity by transforming the plant with a nucleic acid sequence encoding an F-box protein. The inventions also relates to methods of altering the ethylene response in a plant by modulating the activity or expression of an F-box protein.

The invention relates to transgenic plants having reduced sensitivity to ethylene as a result of having a recombinant nucleic acid encoding a F-box protein, and a method of producing a transgenic plant with reduced ethylene sensitivity by transforming the plant with a nucleic acid sequence encoding a F-box protein.

Nucleic acid and polypeptide sequences are described which relate to an EIN6 gene, a gene involved in the plant ethylene response. Plant transformation vectors and transgenic plants are described which display an altered ethylene-dependent phenotype due to altered expression of EIN6 in transformed plants.

Ethylene insensitive plants

A method for decreasing the rate of organ or floral abscission is described. The method includes modifying the ARF GAP domain of a gene. In one instance the gene is the NEVERSHED gene.

Genetic control of organ abscission

The field of the invention relates to plants and plant genes, including both plant mutants and transgenic plants containing a gene that confers an ethylene insensitive phenotype. Also encompassed by the invention are methods of using the disclosed plant gene to confer an ethylene insensitive phenotype.

Methods and compositions to modulate ethylene sensitivity

The present invention is directed to amino acid sequences for ethylene insensitive, EIN loci in the ethylene response in plant systems.

Plant genes for sensitivity to ethylene and pathogens

The present invention is directed to nucleic acid sequences for ethylene insensitive, EIN loci and corresponding amino acid sequences.

A process for identifying a plant having disease tolerance comprising administering to a plant an inhibitory amount of ethylene and screening for ethylene insensitivity, thereby identifying a disease tolerant plant, is described. Plants identified by the foregoing process are also described.

Method of identifying plant pathogen tolerance

The present invention is directed to nucleic acid sequences for ethylene insensitive, EIN loci and corresponding amino acid sequences. The present invention is also directed to nucleic acid sequences for hookless1, HLS1, alleles and amino acid sequences.

The present invention is directed to nucleic acid sequences for constitutive triple response mutants and corresponding amino acid sequences. Several ctr mutations are included within the scope of the present invention. The nucleic acid sequences set forth in SEQUENCE ID NUMBERS 1, and 3-6 as well as amino acid sequences set forth in SEQUENCE ID NUMBERS 1 and 2 are particular embodiments of the present invention.

Growing community of inventors

Carlsbad, CA, United States of America

Joseph R Ecker