Xi I Chen

US Patent:

6964866, Nov 15, 2005

Filed:

Jun 28, 2001

Appl. No.:

09/894630

Inventors:

C. Peter Romaine - State College PA, US
Xi Chen - Durham NC, US

Assignee:

The Penn State Research Foundation - University Park PA

International Classification:

C12N001/14
C12N001/16
C12N001/18
C12N015/74
C12N015/82

US Classification:

43525411, 435243, 435440, 435471, 435469, 536 231

Abstract:

Applicants have devised a highly effective, convenient, and expeditious genetic transformation system for filamentous fungi, such as. The preferred method uses an -mediated transformation protocol. The critical features of this protocol include co-cultivation of the bacterium with fruit body tissue instead of spores. In a preferred embodiment, even higher transformation efficiencies were observed with the use of a homologous promoter in the polynucleotide expression construct in order to drive gene expression.

US Patent:

7230159, Jun 12, 2007

Filed:

Mar 5, 2003

Appl. No.:

10/505744

Inventors:

Tesfaye Mengiste - West Lafayette IN, US
Xi Chen - Research Triangle Park NC, US
John Salmeron - Research Triangle Park NC, US
Robert Dietrich - Research Triangle Park NC, US

Assignee:

Syngenta Participations AG - Basel

International Classification:

C12N 15/82
C12N 15/09
A01H 5/00

US Classification:

800279, 800278, 800298, 536 241, 4353201, 435468

Abstract:

The present invention pertains to an isolated promoter sequence from BOSI gene encoding a protein for biotic and abiotic stress tolerance. Also, the invention relates to recombinant vectors, expression cassettes, host cells, plants or progeny thereof comprising nucleic acid molecules operably linked to said promoter.

US Patent:

7700349, Apr 20, 2010

Filed:

Sep 30, 2004

Appl. No.:

10/955146

Inventors:

C. Peter Romaine - State College PA, US
Xi Chen - Durham NC, US

Assignee:

The Penn State Research Foundation - University Park PA

International Classification:

C12N 15/82

US Classification:

4353201

Abstract:

Applicants have devised a highly effective, convenient, and expeditious genetic transformation system for filamentous fungi, such as. The preferred method uses an -mediated transformation protocol. The critical features of this protocol include co-cultivation of the bacterium with fruit body tissue instead of spores. In a preferred embodiment, even higher transformation efficiencies were observed with the use of a homologous promoter in the polynucleotide expression construct in order to drive gene expression.

US Patent:

20110030099, Feb 3, 2011

Filed:

Jul 16, 2010

Appl. No.:

12/837905

Inventors:

John Andrew Ryals - Durham NC, US
Lining Guo - Durham NC, US
Kay Ann Lawton - Durham NC, US
Xi Chen - Durham NC, US

International Classification:

A01H 1/06
A01H 5/00

US Classification:

800285, 800278, 800298

Abstract:

Methods of conferring increased drought tolerance to a plant by reducing or inhibiting ammonia accumulation, and plants produced thereby.

US Patent:

20110214200, Sep 1, 2011

Filed:

Oct 14, 2010

Appl. No.:

12/904450

Inventors:

DAOLONG WANG - CLINTON IL, US
LIBARDO ANDRES GUTIERREZ ROJAS - SANTIAGO, CL
XI CHEN - DURHAM NC, US
JOSEPH CLARKE - DURHAM NC, US
MICHAEL G. MUSZYNSKI - AMES IA, US
PAUL ALTENDORF - STANTON MN, US
SARAH ALISSA FORRESTER - DURHAM NC, US
LYNN SENIOR - DURHAM NC, US
VENKATA KRISHNA KISHORE - CLINTON IL, US

International Classification:

A01H 1/02
C12Q 1/68
C12N 5/04
A01H 5/00
A01H 5/10
C07H 21/04

US Classification:

800275, 435 611, 435412, 8003201, 536 236, 536 2433

Abstract:

Methods for introgressing an allele of interest of a locus associated with a yield trait into germplasm are provided. In some embodiments, the methods include providing a plant that contains an allele of interest of a locus associated with a yield trait, wherein the locus associated with the yield trait is identifiable by PCR amplification of a nucleic acid with a pair of oligonucleotides primers as disclosed herein, and introgressing the allele of interest into germplasm that lacks the allele. Also provided are methods for identifying plants that contain at least one allele associated with improved yield, improved maize plants, elite plants, biomass produced from improved plants, isolated and purified genetic markers, and compositions that include an amplification primer pair capable of amplifying a nucleic acid to generate a marker amplicon.

US Patent:

20140173779, Jun 19, 2014

Filed:

Apr 5, 2013

Appl. No.:

13/857793

Inventors:

- Basel, CH
- Guelph, CA
Joseph Colasanti - Guelph, CA
Gregory Downs - Guelph, CA
Yong-Mei Bi - Guelph, CA
Lewis N. Lukens - Guelph, CA
Steven J. Rothstein - Guelph, CA
Tong Zhu - Research Triangle Park NC, US
Xi Chen - Research Triangle Park NC, US

Assignee:

The University of Guelph - Guelph
Syngenta Participations AG - Basel

International Classification:

C12N 15/82

US Classification:

800287, 536 241, 4353201, 435419, 800298

Abstract:

The invention provides nucleotide sequences that can be used in operable association with a promoter to express a polynucleotide sequence of interest in a plant, plant part or plant cell at particular stages of development and/or in specific tissues. and methods for directing developmental stage specific and/or tissue specific expression of a polynucleotide of interest.