A process for preparing an expression system for use in the controlof fertility of a plant or plant cell or for use in expression in anappropriate organism, tissue, cell or medium, wherein the processcomprises the step of mixing the following :(a) a first pollen specific promoter sequence which is expressed specifically in pollen;(b) a first gene which when expressed, disrupts pollen biogenesis, under the control of said pollen specific promoter sequence;(c) a second promoter sequence responsive to the presence or absence of an exogenous chemical inducer; and(d) a second gene encoding an element which can inhibit either expression of said first gene, or can inhibit the said first pollen specific promoter sequence, operably linked to and under the control of said second promoter sequence; and(e) optionally one or more expression cassettes of the kind such as herein described;in the conventional manner to result in the expression system.

Patent Information

Application #

Filing Date

24 July 2000

Publication Number

Publication Type

Invention Field

Status

Email

Parent Application

Patent Number

Legal Status

Grant Date

1900-01-01

Renewal Date

Applicants

SYNGENTA LIMITED

EUROPEAN REGIONAL CENTRE, PRIESTLEY ROAD, SURREY RESEARCH PARK, GUILDFORD, SURREY GU2 7YH, UNITED KINGDOM.

Inventors

1. ANDREW JAMES GREENLAND

JEALOTT'S HILL RESEARCH STATION, BRACKNELL, BERKSHIRE RG42 6ET, UNITED KINGDOM.

2. HILARY JOAN ROGERS

SCHOOL OF PURE AND APPLIED BIOLOGY, UNIVERSITY OF WALES, P O BOX 915, CARDIFF CF1 3TL, UNITED KINGDOM.

3. PATRICK JOSEPH HUSSEY

SCHOOL OF PURE AND APPLIED BIOLOGY, UNIVERSITY OF WALES, P O BOX 915, CARDIFF CF1 3TL, UNITED KINGDOM.

Specification

Documents

Application Documents

#	Name	Date
1	in-pct-2000-00214-mum-power of authority(12-5-2004).pdf	2018-08-08
2	in-pct-2000-00214-mum-petition under rule 138(11-5-2004).pdf	2018-08-08
3	in-pct-2000-00214-mum-petition under rule 137(11-5-2004).pdf	2018-08-08
4	in-pct-2000-00214-mum-form 5(24-7-2000).pdf	2018-08-08
5	in-pct-2000-00214-mum-form 4(20-1-2004).pdf	2018-08-08
6	in-pct-2000-00214-mum-form 3(24-7-2000).pdf	2018-08-08
7	in-pct-2000-00214-mum-form 3(12-5-2004).pdf	2018-08-08
8	in-pct-2000-00214-mum-form 2(granted)-(10-5-2004).pdf	2018-08-08
10	in-pct-2000-00214-mum-form 1a(12-5-2004).pdf	2018-08-08
11	in-pct-2000-00214-mum-form 1(24-7-2000).pdf	2018-08-08
12	in-pct-2000-00214-mum-drawing(10-5-2004).pdf	2018-08-08
13	in-pct-2000-00214-mum-correspondence(ipo)-(15-10-04).pdf	2018-08-08
14	in-pct-2000-00214-mum-correspondence(30-6-04).pdf	2018-08-08
15	in-pct-2000-00214-mum-claims(granted)-(10-5-2004).pdf	2018-08-08
17	in-pct-2000-00214-mum-cancelled pages(10-5-2004).pdf	2018-08-08
18	in-pct-2000-00214-mum-assignment(12-5-2004).pdf	2018-08-08
19	in-pct-2000-00214-mum-assignment(11-5-2004).pdf	2018-08-08
20	abstract1.jpg	2018-08-08