The present invention provides novel lettuce cultivar Claudita 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.

New lettuce varieties designated ‘Dark Horse’, ‘Hotshot’, and ‘Uppercut’ are described. ‘Dark Horse’, ‘Hotshot’, and ‘Uppercut’ exhibit stability and uniformity.

A new and distinct lettuce variety NUN 08230 LTL is disclosed as well as seeds and plants and heads or leaves thereof. NUN 08230 LTL is a mini romaine lettuce variety comprising resistance to Downy Mildew (Bremia lactucae) Isolates Bl:16-27, 29, 32, 34, and 36EU, Nasonovia ribisnigri Biotype Nr:0, and Lettuce Necrotic Spot Virus (LNSV).

The present invention relates to a Lactuca sativa seed designated 79-40 RZ, which may exhibit a combination of traits including resistance against downy mildew (Bremia lactucae) races Bl:1 to Bl:31 and Ca-I to Ca-VIII, currant-lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, lettuce mosaic virus (LMV), as well as very deeply incised leaves. The present invention also relates to a Lactuca sativa plant produced by growing the 79-40 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 79-40 RZ.

The present invention relates to a Lactuca sativa seed designated 41-187 RZ, which exhibits a combination of traits including resistance against downy mildew (Bremia lactucae) races Bl:1 to Bl:17, Bl:21, Bl:23 and Ca-I to Ca-VI, currant-lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, lettuce mosaic virus (LMV), and corky root rot (Sphingomonas suberifaciens), as well as having a reduced wound-induced surface discoloration. The present invention also relates to a Lactuca sativa plant produced by growing the 41-187 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 41-187 RZ.

The present invention relates to a Lactuca sativa seed designated 41-342 RZ, which exhibits a combination of traits including resistance to downy mildew (Bremia lactucae) races Bl:1 to Bl:12, Bl:17, Bl:18, Bl:22, Bl:24, Bl:25, Bl:28-Bl:30, resistance to currant-lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, resistance to Lettuce Mosaic Virus (LMV) race LMV:1, as well as very thick mature leaves and a small head size. The present invention also relates to a Lactuca sativa plant produced by growing the 41-342 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 41-342 RZ.

The present invention relates to the field of lettuce breeding, in particular to Quantitative Trait Loci for resistance against the lettuce aphid Nasonovia ribisnigri biotype Nr:1 and to cultivated lettuce comprising one or more of these Quantitative Trait Loci.

The present invention relates to a Lactuca sativa seed designated 81-01 RZ, which exhibits a combination of traits including resistance to downy mildew (Bremia lactucae) races B1:1 to B1:28, B1:30 to B1:32 and Ca-I to Ca-VIII, resistance to currant-lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, and leaves having a solid main vein. The present invention also relates to a Lactuca sativa plant produced by growing the 81-01 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 81-01 RZ.

The present invention relates to a Lactuca sativa seed designated 81-52 RZ, which exhibits a combination of traits including resistance against downy mildew (Bremia lactucae Regel) races B1:1 to B1:17, B1:21, B1:23 and CA-I to CA-VIII, currant-lettuce aphid (Nasonovia ribignisi) biotype Nr:0, corky root (Sphingomonas suberifaciens) race CA1, root aphids (Pemphigus bursarius) and Lettuce Mosaic Virus (LMV), as well as very slow bolting. The present invention also relates to a Lactuca sativa plant produced by growing the 81-52 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 81-52 RZ.

New lettuce varieties designated ‘PRO 1277’ and ‘PRO 1632’ are described. ‘PRO 1277’ and ‘PRO 1632’ exhibit stability and uniformity.