Lettuce variety 41-188 RZ

Patent metadata

Field	Value
Publication number	US-9392812-B2
Application number	US-201414539616-A
Country	US
Kind code	B2
Filing date	Nov 12, 2014
Priority date	Nov 13, 2013
Publication date	Jul 19, 2016
Grant date	Jul 19, 2016

Abstract

The present invention relates to a Lactuca sativa seed designated 41-188 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, and to corky root rot ( Sphingomonas suberifaciens ), as well as having solid main veins and narrow base leaves. The present invention also relates to a Lactuca sativa plant produced by growing the 41-188 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 41-188 RZ.

First claim

What is claimed is:

1. A lettuce plant designated 41-188 RZ, representative seed of which having been deposited under NCIMB Accession No. 42184, wherein said plant comprises at least the following 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, and to corky root rot ( Sphingomonas suberifaciens ), as well as having solid main veins and narrow base leaves.

2. A seed of the plant of claim 1 .

3. A part of the plant of claim 1 , wherein said part of the plant is suitable for sexual reproduction.

4. A part of the plant as claimed in claim 3 , wherein said part comprises a microspore, pollen, an ovary, an ovule, an embryo sac or egg cell.

5. A part of the plant of claim 1 , wherein said part of the plant is suitable for vegetative reproduction.

6. A part of the plant as claimed in claim 5 , wherein said part comprises a cutting, a root, a stem, a cell or a protoplast.

7. A tissue culture of regenerable cells or protoplasts from the lettuce plant of claim 1 .

8. The cell or protoplast of claim 6 derived from a leaf, pollen, an embryo, a cotyledon, a hypocotyl, a meristematic cell, a root, a root tip, an anther, a flower, a seed or a stem.

9. A method for producing a progeny plant of a lettuce plant of claim 1 , comprising crossing the plant of claim 1 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 9 wherein said progeny plant exhibits 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, and to corky root rot ( Sphingomonas suberifaciens ), as well as having solid main veins and narrow base leaves and has genetic material for the combination of traits, representative seed of which having been deposited under NCIMB Accession No. 42184.

11. A progeny plant produced by the method of claim 9 , wherein said progeny plant has all the morphological and physiological characteristics of the lettuce plant designated 41-188 RZ, representative seed of which having been deposited under NCIMB Accession No. 42184.

12. The progeny plant as claimed in claim 9 , wherein said progeny plant is modified in one or more other characteristics.

13. The progeny plant as claimed in claim 12 , wherein the modification is effected by mutagenesis.

14. The progeny plant as claimed in claim 12 , wherein the modification is effected by transformation with a transgene.

15. A method of producing a hybrid lettuce seed comprising crossing a first parent lettuce plant with a second parent lettuce plant and harvesting the resultant hybrid lettuce seed, wherein said first parent lettuce plant or said second parent lettuce plant is the lettuce plant of claim 1 .

16. A hybrid lettuce seed produced by the method of claim 15 .

17. A method of producing a lettuce cultivar exhibiting 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, and to corky root rot ( Sphingomonas suberifaciens ), as well as having solid main veins and narrow base leaves, representative seed of which having been deposited under NCIMB Accession No. 42184, comprising: crossing a mother lettuce plant with a father lettuce plant to produce a hybrid seed; growing said hybrid seed to produce a hybrid plant; selfing said hybrid plant to produce F2 progeny seed; growing said F2 progeny seed to produce F2-plants; selecting said F2-plants for exhibiting 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, and to corky root rot ( Sphingomonas suberifaciens ), as well as having solid main veins and narrow base leaves, and, selfing said selected F2-plants to produce F3 progeny seed; growing said F3 progeny seed to produce F3-plants; selecting F3-plants for exhibiting 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, and to corky root rot ( Sphingomonas suberifaciens ), as well as having solid main veins and narrow base leaves, representative seed of which having been deposited under NCIMB Accession No. 42184, optionally followed by more selfing and selection steps.

18. A lettuce cultivar produced by the method of claim 17 .

19. A method for producing lettuce leaves as a fresh vegetable comprising packaging leaves of a plant of claim 1 .

20. A method for producing lettuce leaves as a processed food comprising processing leaves of a plant of claim 1 .

21. A container comprising one or more lettuce plants of claim 1 for harvest of leaves.

22. A lettuce plant having 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, and to corky root rot ( Sphingomonas suberifaciens ), as well as having solid main veins and narrow base leaves and other morphological and/or physiological characteristics of a lettuce plant, representative seed of which having been deposited under NCIMB Accession No. 42184.

23. A method of introducing a desired trait into a plant of lettuce variety 41-188 RZ comprising: (a) crossing a plant of lettuce variety 41-188 RZ, representative seed of which having been deposited under NCIMB Accession No. 42184, with a second lettuce plant that comprises the desired trait to produce F1 progeny; (b) selecting an 1 progeny that comprises the desired trait; (c) crossing the selected F1 progeny with a plant of lettuce variety 41-188 RZ, to produce backcross progeny and (d) selecting backcross progeny comprising the desired trait and physiological and morphological characteristics of a plant of lettuce variety 41-188 RZ, when grown in the same environmental conditions.

24. The method of claim 23 further comprising (e) repeating steps (c) and (d) one or more times in succession to produce selected fourth or higher backcross progeny that comprise the desired trait and all of the physiological and morphological characteristics of a plant of lettuce variety 41-188 RZ, when grown in the same environmental conditions.

25. A lettuce plant produced by the method of claim 23 .

26. A method for producing a seed of a 41-188 RZ-derived lettuce plant comprising (a) crossing a plant of lettuce variety 41-188 RZ, representative seed of which having been deposited under NCIMB Accession No. 42184, with a second lettuce plant, and (b) whereby seed of a 41-188 RZ-derived lettuce plant forms.

27. The method of claim 26 further comprising (c) crossing a plant grown from 41-188 RZ-derived lettuce seed with itself or with a second lettuce plant to yield additional 41-188 RZ-derived lettuce seed, (d) growing the additional 41-188 RZ-derived lettuce seed of step (c) to yield additional 41-188 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 41-188 RZ-derived lettuce plants.

28. The method of claim 27 further comprising selecting at steps b), d), and e), a 41-188 RZ-derived lettuce plant, exhibitin

Assignees

• Rijk Zwaan Zaadteelt En Zaadhandel Bv

Inventors

• Ammerlaan Adrianus Martinus Jozeph

Classifications

• C12Q1/6895 Primary

  for plants, fungi or algae · CPC title

• C12Q2600/158

  Expression markers · CPC title

• C12Q2600/13

  Plant traits · CPC title

• A23L1/212 Primary

  Human Necessities · mapped topic

• A01H5/12 Primary

  Leaves · CPC title