LETTUCE THAT IS RESISTANT TO THE LETTUCE APHID NASONOVIA RIBISNIGRI BIOTYPE 1

• US 20110126308A1
• Filed: 11/16/2010
• Published: 05/26/2011
• Est. Priority Date: 11/16/2009
• Status: Active Grant

• Current Assignee: Rijk Zwaan Zaadteelt En Zaadhandel B.V (RIJK Zwaan Top Holding BV)
• Original Assignee: Rijk Zwaan Zaadteelt En Zaadhandel B.V (RIJK Zwaan Top Holding BV)
• Inventors: Thabuis, Arnaud Paul Pierre, Herwijnen, Zeger Otto van, Teekens, Korstiaan Cornelis
• Granted Patent: US 8,829,280 B2
• Time in Patent Office: Days
• US Class Current: 800/265
• CPC Class Codes: A01H 1/127 for insect resistance
• CPC Class Codes: A01H 5/12 Leaves
• CPC Class Codes: A01H 6/1472 Lactuca sativa [lettuce]
• CPC Class Codes: C12N 5/04 Plant cells or tissues culture media C12N5/0025

Abstract

The present invention relates to lettuce plants and heads that are resistant to Nasonovia ribisnigri biotype 1 (also called herein Nr:1) as well as to progeny of the plants and propagation material for producing the plants. The invention further relates to a source of the resistance for use in breeding.

Claims

1. Lettuce (Lactuca sativa) plant, which has the resistance against Nasonovia ribisnigri biotype 1 (Nr:

1) as found in plants grown from seeds of Lactuca serriola 10G.913571 representative seeds of which were deposited under NCIMB accession number 41775.

2. Lettuce plant as claimed in claim 1, obtainable by introgressing the resistance to Nasonovia risbisnigri Nr:

1 as found in Lactuca serriola 10G.913571 representative seeds of which were deposited under NCIMB accession number 41775 into a plant that is not resistant.

3. Lettuce plant as claimed in claim 1, which is resistant to Nasonovia ribisnigri biotype 1 (Nr:

1), and which plant is obtainable by crossing a lettuce plant with a plant grown from seeds of L. serriola 10G.913571 representative seeds of which were deposited with the NCIMB under NCIMB accession number 41775 and selecting in the F2 progeny of the cross that is obtained after selling the F1 for plants showing the resistance.

4. Seed of a lettuce plant as claimed in claim 1.

5. Seed as claimed in claim 4, wherein the plant that can be grown from the seed is resistant to Nasonovia ribisnigri biotype 1 (Nr:

1).

6. Progeny of a lettuce plant or lettuce seeds as claimed in claim 1, wherein the progeny is resistant to Nasonovia ribisnigri biotype 1 (Nr:

1).

7. Propagation material suitable for producing a plant as claimed in claim 1.

8. Propagation material as claimed in claim 7, which propagation material is formed by seeds.

9. Propagation material as claimed in claim 7, which propagation material is formed by parts of the plant that are suitable for sexual reproduction, in particular microspores, pollen, ovaries, ovules, embryo sacs and egg cells.

10. Propagation material as claimed in claim 7, which propagation material is formed by parts of the plant that are suitable for vegetative reproduction, in particular cuttings, roots, stems, cells and protoplasts, tissue cultures of regenerable cells.

11. Propagation material as claimed in claim 7, which propagation material is formed by parts of the plant that are suitable for preparing tissue cultures, in particular leaves, pollen, embryos, cotyledons, hypocotyls, meristematic cells, roots, root tips, anthers, flowers, seeds and stems.

12. Propagation material as claimed in claim 7, wherein the plant produced from the propagation material is resistant to Nasonovia ribisnigri biotype 1 (Nr:

1)

13. Head of a lettuce plant as claimed in claim 1.

14. Food product, comprising the lettuce head of claim 13 or parts thereof.

15. Food product as claimed in claim 14, wherein the parts are leaves or parts thereof.

16. Use of Lactuca serriola 10G.913571, representative seeds of which were deposited under NCIMB accession number 41775, in breeding to confer resistance against Nasonovia ribisnigri biotype 1 (Nr:

1) to plants that are susceptible to Nasonovia ribisnigri biotype 1 (Nr;

     1).

17. Lactuca serriola 10G.913571 representative seeds of which were deposited under NCIMB accession number 41775.