Lettuce variety 45-153 RZ
AssigneeRijk Zwaan Zaadteelt En Zaadhandel B.V.
InventorsMaria Helena Roosenboom-Kooijmans, Willem van Vliet
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Abstract
The present invention relates to a Lactuca sativa seed designated 45-153 RZ, which exhibits a combination of traits including resistance against downy mildew (Bremia lactucae) races B1:1-B1:31, CA-I to CA-VIII, resistance against currant-lettuce aphid (Nasonovia ribisnigri), a small head size, and moderate blistering. The present invention also relates to a Lactuca sativa plant produced by growing the 45-153 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 45-153 RZ.
Claims34
A lettuce plant designated 45-153 RZ, representative seed of which having been deposited under NCIMB Accession No. 42330, wherein said plant comprises at least the following combination of traits including resistance against downy mildew (Bremia lactucae) races B1:1-B1:31, CA-I to CA-VIII, resistance against currant-lettuce aphid (Nasonovia ribisnigri), a small head size, and moderate blistering.
A container comprising one or more lettuce plants of claim l for harvest of leaves.
A method of producing a lettuce cultivar containing a combination of traits including resistance against downy mildew (Bremia lactucae) races B1:1-B1:31, CA-I to CA-VIII, resistance against currant-lettuce aphid (Nasonovia ribisnigri), a small head size, and moderate blistering, representative seed of which having been deposited under NCIMB Accession No. 42330, 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 B1:1-B1:31, CA-I to CA-VIII, resistance against currant-lettuce aphid (Nasonovia ribisnigri), a small head size, and moderate blistering, and, selfing said selected F2-plants to produce F3progeny seed;
- growing said F3 progeny seed to produce F3-plants;
- selecting F3-plants for exhibiting resistance against downy mildew (Bremia lactucae) races B1:1-B1:31, CA-I to CA-VIII, resistance against currant-lettuce aphid (Nasonovia ribisnigri), a small head size, and moderate blistering, representative seed of which having been deposited under NCIMB Accession No. 42330, optionally followed by more selfing and selection steps.
A lettuce plant having resistance against downy mildew (Bremia lactucae) races B1:1-B1:31, CA-I to CA-VIII, resistance against currant-lettuce aphid (Nasonovia ribisnigri), a small head size, and moderate blistering and other morphological and/or physiological characteristics of a lettuce plant, representative seed of which having been deposited under NCIMB Accession No. 42330.
A method of introducing a desired trait into a plant of lettuce variety 45-153 RZ comprising:
- (a) crossing a plant of lettuce variety 45-153 RZ, representative seed of which having been deposited under NCIMB Accession No. 42330, with a second lettuce plant that comprises the desired trait to produce F1 progeny;
- (b) selecting an F1progeny that comprises the desired trait;
- (c) crossing the selected F1 progeny with a plant of lettuce variety 45-153 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 45-153 RZ, when grown in the same environmental conditions.
A method for producing a seed of a 45-153 RZ-derived lettuce plant comprising (a) crossing a plant of lettuce variety 45-153 RZ, representative seed of which having been deposited under NCIMB Accession No. 42330, with a second lettuce plant, and (b) whereby seed of a 45-153 RZ-derived lettuce plant form.
A lettuce plant exhibiting a combination of traits including resistance against downy mildew (Bremia lactucae) races B1:1-B1:31, CA-I to CA-VIII, resistance against currant-lettuce aphid (Nasonovia ribisnigri), a small head size, and moderate blistering, and having genetic information for so exhibiting the combination of traits, wherein the genetic information is as contained in a plant, representative seed of which having been deposited under NCIMB Accession No. 42330.
Dependencies are inferred from the claim text.