Lettuce (Lactuca sativa) plants exhibiting resistance to Nasonovia ribisnigri biotype Nr:1 are provided, together with methods of producing, identifying, or selecting plants or germplasm with a Nasonovia ribisnigri biotype Nr:1 resistance phenotype. Such plants include lettuce plants comprising introgressed genomic regions conferring pest resistance. Compositions, including novel polymorphic markers for detecting plants comprising introgressed loci, are further provided.

The invention provides seed and plants of the lettuce line SVLD0033. The invention thus relates to the plants, seeds, and tissue cultures of lettuce line SVLD0033, and to methods for producing a lettuce plant produced by crossing a plant of lettuce line SVLD0033 with itself or with another lettuce plant, such as a plant of another genotype. The invention further relates to seeds and plants produced by such crossing. The invention further relates to parts of a plant of lettuce line SVLD0033, including the gametes of such plants.

Novel lettuce, such as lettuce designated CARRIZO is disclosed. In some embodiments, the disclosure relates to the seeds of lettuce designated CARRIZO, to the plants and plant parts of lettuce designated CARRIZO, and to methods for producing a lettuce plant by crossing the lettuce designated CARRIZO with itself or another lettuce plant. The disclosure further relates to methods for producing a lettuce plant containing in its genetic material one or more transgenes and to the transgenic plants produced by that method and to methods for producing other lettuce plants derived from the lettuce designated CARRIZO.

New lettuce variety designated ‘Kinlar’ is described. ‘Kinlar’ is a lettuce variety exhibiting stability and uniformity.

A new and distinct lettuce variety NUN 09188 LTL is disclosed, as well as seeds and plants and heads or leaves thereof.

New lettuce variety designated ‘E01L.30617’ is described. ‘E01L.30617’ is a lettuce variety exhibiting stability and uniformity.

The present invention relates to a Lactuca sativa seed designated 44-CL5001 RZ. The present invention also relates to a Lactuca sativa plant produced by growing the 44-CL5001 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 44-CL5001 RZ.

The present invention provides novel lettuce cultivar Grackle and plant parts, seed, and tissue culture therefrom. The invention also provides methods for producing a lettuce plant by crossing the lettuce plants of the invention with themselves or another lettuce plant. The invention also provides lettuce plants produced from such a crossing as well as plant parts, seed, and tissue culture therefrom.

According to the disclosure, there is provided a novel lettuce cultivar, designated Stomper. Stomper is described as a vigorous romaine cultivar with added disease resistance. This disclosure thus relates to the seeds of lettuce cultivar Stomper, to the plants of lettuce cultivar Stomper, to plant parts of lettuce cultivar Stomper, to methods for producing a lettuce cultivar by crossing the lettuce cultivar Stomper with another lettuce cultivar, and to methods for producing a lettuce cultivar containing in its genetic material one or more backcross conversion traits or transgenes and to the backcross conversion lettuce plants and plant parts produced by those methods.

New lettuce variety designated ‘Elevate’, is described. ‘Elevate’, is a lettuce variety exhibiting exhibit stability and uniformity.