Lettuce variety 42-BU1911 RZ
The present invention relates to a Lactuca sativa seed designated 42-BU1911 RZ. The present invention also relates to a Lactuca sativa plant produced by growing the 42-BU1911 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 42-BU1911 RZ.
1 . A seed of lettuce variety 42-BU1911 RZ, a sample of seed of said variety having been deposited under NCIMB Accession No. 44250.
2 . A lettuce plant grown from the seed of claim 1 .
3 . A lettuce plant, or a part thereof, having all the physiological and morphological characteristics of the lettuce plant of claim 2 .
4 . A part of the lettuce plant of claim 2 , wherein said part comprises a leaf, pollen, embryo, cotyledon, hypocotyl, meristematic cell, root tip, anther, flower, microspore, pollen, ovary, ovule, embryo sac, egg cell, cutting, root, stem, cell or protoplast.
5 . A tissue culture of regenerable cells or protoplasts from the lettuce plant of claim 2 .
6 . A lettuce plant regenerated from the tissue culture of claim 5 , wherein the regenerated plant expresses all of the physiological and morphological characteristics of lettuce variety 42-BU1911 RZ, a sample of seed of said variety having been deposited under NCIMB Accession No. 44250.
7 . A lettuce plant regenerated from the tissue culture of claim 5 , wherein the regenerated plant is of lettuce variety 42-BU1911 RZ and exhibits a combination of traits or resistances including resistance to downy mildew ( Bremia lactucae ) races Bl:29EU to Bl:40EU and Bl:5US to Bl:9US, resistance to currant-lettuce aphid ( Nasonovia ribisnigri ) biotype Nr:0, dark green leaves and a medium to dense head, a sample of seed of said variety having been deposited under NCIMB Accession No. 44250.
8 . A method of vegetatively propagating a plant of lettuce variety 42-BU1911 RZ, a sample of seed of said variety having been deposited under NCIMB Accession No. 44250, comprising (a) collecting tissue capable of being propagated from the lettuce plant of claim 2 , (b) cultivating the tissue to obtain proliferated shoots and rooting the proliferated shoots to obtain rooted plantlets, and (c) optionally growing plants from the rooted plantlets.
9 . A method for producing a progeny plant of lettuce cultivar 42-BU1911 RZ, comprising crossing the lettuce plant of claim 2 with itself or with another lettuce plant, harvesting the resultant seed, and growing said seed.
10 . A progeny plant produced by the method of claim 8 , wherein said progeny exhibits all the morphological and physiological characteristics of the lettuce variety designated 42-BU1911 RZ, a sample of seed of said variety having been deposited under NCIMB Accession No. 44250.
11 . A progeny plant produced by the method of claim 9 , wherein said progeny plant is of lettuce variety 42-BU1911 RZ and exhibits a combination of traits or resistances including resistance to downy mildew ( Bremia lactucae ) races Bl:29EU to Bl:40EU and Bl:5US to Bl:9US, resistance to currant-lettuce aphid ( Nasonovia ribisnigri ) biotype Nr:0, dark green leaves and a medium to dense head, a sample of seed of said variety having been deposited under NCIMB Accession No. 44250.
12 . The progeny plant of claim 10 , wherein said progeny plant is modified in one or more other characteristics.
13 . The progeny plant of claim 11 , wherein said progeny plant is modified in one or more other characteristics.
14 . A lettuce plant of claim 2 further comprising a transgene.
15 . The plant of claim 14 , wherein the transgene is introduced via transformation.
16 . A method for producing a modified lettuce plant comprising mutagenizing the seed of claim 1 and growing said seed.
17 . A method for producing a modified lettuce plant comprising mutagenizing the plant of claim 2 .
18 . A method for producing a modified lettuce plant comprising mutagenizing the plant of claim 3 .
19 . A method for producing a modified lettuce plant comprising mutagenizing the plant of claim 6 .
20 . A method for producing a modified lettuce plant comprising mutagenizing the part of the plant of claim 3 .
21 . A method for producing a modified lettuce plant comprising mutagenizing the part of the plant of claim 4 .
22 . A method for producing a modified lettuce plant comprising mutagenizing the tissue culture of claim 5 .
23 . A method of producing a lettuce seed comprising crossing a male parent lettuce plant with a female parent lettuce plant and harvesting the resultant lettuce seed, wherein said male parent lettuce plant or said female parent lettuce plant is the lettuce plant of claim 2 .
24 . An F 1 lettuce seed produced by the method of claim 23 wherein a lettuce plant grown from said seed exhibits all of the morphological and physiological characteristics of the lettuce variety designated 42-BU1911 RZ.
25 . A lettuce plant produced by growing the seed of claim 24 wherein said lettuce plant exhibits all the morphological and physiological characteristics of the lettuce variety designated 42-BU1911 RZ, a sample of seed of said variety having been deposited under NCIMB Accession No. 44250.
26 . A method for producing a seed of a 42-BU1911 RZ-derived lettuce plant comprising (a) crossing a plant of lettuce variety 42-BU1911 RZ, a sample of seed of which having been deposited under NCIMB Accession No. 44250, with a second lettuce plant, and (b) whereby seed of a 42-BU1911 RZ-derived lettuce plant forms.
27 . The method of claim 26 further comprising (c) crossing a plant grown from 42-BU1911 RZ-derived lettuce seed with itself or with a second lettuce plant to yield additional 42-BU1911 RZ-derived lettuce seed, (d) growing the additional 42-BU1911 RZ-derived lettuce seed of step (c) to yield additional 42-BU1911 RZ-derived lettuce plants, and (e) repeating the crossing and growing of steps (c) and (d) for an additional 3-10 generations to generate further 42-BU1911 RZ-derived lettuce plants, and (f) whereby seed of a 42-BU1911 RZ-derived lettuce plant forms.
28 . A method of introducing at least one new trait into a plant of lettuce variety 42-BU1911 RZ comprising: (a) crossing a plant of lettuce variety 42-BU1911 RZ, a sample of seed of which having been deposited under NCIMB Accession No. 44250, with a second lettuce plant that comprises at least one new trait to produce progeny seed, (b) harvesting and planting the progeny seed to produce at least one progeny plant of a subsequent generation, wherein the progeny plant comprises the at least one new trait, (c) crossing the progeny plant with a plant of lettuce variety 42-BU1911 RZ to produce backcross progeny seed, (d) harvesting and planting the backcross progeny seed to produce a backcross progeny plant, and (e) repeating steps (c) and (d) for at least three additional generations to produce a lettuce plant of variety 42-BU1911 RZ comprising at least one new trait and all of the physiological and morphological characteristics of a plant of lettuce variety 42-BU1911 RZ, when grown in the same environmental conditions.
29 . The lettuce plant produced by the method of claim 28 , wherein the plant comprises the at least one new trait and otherwise all of the physiological and morphological characteristics of a lettuce plant of lettuce variety 42-BU1911 RZ.
30 . A method for producing lettuce leaves as a food product comprising sowing the seed of claim 1 and growing the seed into a harvestable lettuce plant and harvesting the head or leaves of said plant, optionally processing and/or packaging the head or the leaves.
31 . A container comprising one or more lettuce plants of claim 2 or head(s) thereof for harvest of leaves.
32 . A container comprising one or more lettuce plants of claim 3 or head(s) thereof for harvest of leaves.
33 . The lettuce plant of claim 2 , which is a plant grown from seed having been deposited under NCIMB Accession No. 44250.