Issue 1295-1

US 6,903,249 B2

Lettuce plants having broad-spectrum Dm-resistance genes

Johannes Jacobus Maria Lambalk, Middenbeemster (Netherlands); Nanne Machiel Faber, Hoorn (Netherlands); Arie Bastiaan Bruijnis, Hoorn (Netherlands); Petrus Cornelis Johannes Conijn, Noordbeemster (Netherlands); Ijfke Arendtje Dèn Witte, Enkhuizen (Netherlands); Jacqueline Nieuwenhuis, Oostzaan (Netherlands); and Cornelis Jacob De Jong, Enkhuizen (Netherlands)

Assigned to Enza Zaden, de Enkhuizer Zaadhandel B.V., (Netherlands)

Appl. No. 9/959,037 PCT Filed Apr. 13, 2000, PCT No. PCT/NL00/00241 § 371(c)(1), (2), (4) Date Mar. 08, 2002, PCT Pub. No. WO00/63432, PCT Pub. Date Oct. 26, 2000.

Claims priority of application No. 1011819 (NL), filed on Apr. 16, 1999.

Prior Publication US 2004/0226060 A1, Nov. 11, 2004

Int. Cl.7A01H 1/00

U.S. Cl. 800—305  [800/269; 800/298]

6 Claims

1. A lettuce plant with a lasting resistance to Bremia Iactucae, wherein the lettuce plant is produced from a cultivated lettuce plant (L. sativa) crossed with a wild lettuce plant having at least one broad-spectrum Dm-resistance gene and further wherein said wild lettuce plant is represented by an accession number selected from the group consisting of CGN9365, CGN4683, CGN5148 and CGN5913.