The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 1997
Filed:
Feb. 26, 1993
Applicant:
Inventors:
Assignees:
Calgene, Inc., Davis, CA (US);
The Regents of the University of California, Oakland, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
435 9141 ; 435 9142 ; 4352404 ; 4353201 ;
Abstract
A geminivirus based vector system for obtaining controlled expression of a nucleic acid fragment of interest is disclosed. Tissue specific regulatory regions are identified employing cDNA screening and the resulting tissue specific regulatory regions are manipulated for use in geminivirus constructs to provide for transcription and/or expression of nucleic acid sequences nonindigenous to the geminivirus vector for introduction into plant cells. The vector system may be used to provide transformed plants having cells, tissues or parts with a modified phenotypic property.