IP Library › Granted Patent US 12,745,726
Granted Patent B2
US 12,745,726 · App. 18/451,198 · Granted Sep 29, 2026

Lettuce variety 41-CR1378 RZ

Inventor: Maria Helena Roosenboom-Kooijmans (De Lier, NL)
Assignee: RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
A01H6/1472A01H5/12
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Quick Facts
Patent No.
US 12,745,726
App. No.
18/451,198
Granted
Sep 29, 2026
Kind
B2
Abstract

The present invention relates to a Lactuca sativa seed designated 41-CR1378 RZ. The present invention also relates to a Lactuca sativa plant produced by growing the 41-CR1378 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 41-CR1378 RZ.

Claims (25)

1 . A seed of lettuce variety 41-CR1378 RZ, a sample of seed of said variety having been deposited under NCIMB Accession No. 44183.

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, cotyledon, hypocotyl, meristematic cell, microspore, pollen, ovary, ovule, embryo, embryo sac, egg cell, cutting, root, root tip, anther, flower, 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 41-CR1378 RZ, a sample of seed of said variety having been deposited under NCIMB Accession No. 44183.

7 . A method of vegetatively propagating a plant of lettuce variety 41-CR1378 RZ, a sample of seed of said variety having been deposited under NCIMB Accession No. 44183 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.

8 . A method for producing a progeny plant of lettuce cultivar 41-CR1378 RZ, comprising crossing the lettuce plant of claim 2 with itself or with another lettuce plant, harvesting the resultant seed, and growing said seed.

9 . 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 41-CR1378 RZ, a sample of seed of said variety having been deposited under NCIMB Accession No. 44183.

10 . A lettuce plant exhibiting all the morphological and physiological characteristics of the lettuce variety designated 41-CR1378 RZ, further comprising a transgene.

11 . The plant of claim 10 , wherein the transgene is introduced via transformation.

12 . A method for producing a modified lettuce plant comprising mutagenizing the seed of claim 1 and growing said seed.

13 . A method for producing a modified lettuce plant comprising mutagenizing the plant of claim 2 .

14 . A method for producing a modified lettuce plant comprising mutagenizing the plant of claim 3 .

15 . A method for producing a modified lettuce plant comprising mutagenizing the plant of claim 6 .

16 . A method for producing a modified lettuce plant comprising mutagenizing the part of plant of claim 4 .

17 . A method for producing a modified lettuce plant comprising mutagenizing the tissue culture of claim 5 .

18 . 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 .

19 . An F1 lettuce seed produced by the method of claim 18 .

20 . A lettuce plant produced by growing the seed of claim 19 .

21 . A method for producing a seed of a 41-CR1378 RZ-derived lettuce plant comprising (a) crossing a plant of lettuce variety 41-CR1378 RZ, a sample of seed of which having been deposited under NCIMB Accession No. 44183, with a second lettuce plant, and (b) whereby seed of a 41-CR1378 RZ-derived lettuce plant forms.

22 . The method of claim 21 , further comprising (c) crossing a plant grown from 41-CR1378 RZ-derived lettuce seed with itself or with a second lettuce plant to yield additional 41-CR1378 RZ-derived lettuce seed, (d) growing the additional 41-CR1378 RZ-derived lettuce seed of step (c) to yield additional 41-CR1378 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 41-CR1378 RZ-derived lettuce plants, and (f) whereby seed of a 41-CR1378 RZ-derived lettuce plant forms.

23 . A method of introducing at least one new trait into a plant of lettuce variety 41-CR1378 RZ comprising: (a) crossing the plant of claim 2 , 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 41-CR1378 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 41-CR1378 RZ comprising at least one new trait and all of the physiological and morphological characteristics of a plant of lettuce variety 41-CR1378 RZ, when grown in the same environmental conditions.

24 . 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.

25 . A container comprising one or more lettuce plants of claim 2 or head(s) thereof for harvest of leaves.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 17, 2023
From: ROOSENBOOM-KOOIJMANS, MARIA HELENA
To: RIJK ZWAAN ZAADTEELT EN ZAADHANDEL B.V.
Reel/Frame 064619/0104 →
Continuity (2)
Provisional Application 63371903 · Aug 19, 2022
Related Publication 20240057542A1 · Feb 22, 2024
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