Lettuce Aphid (Nasonovia ribisnigri) Lettuce plant resistant to biotype NR: 1.

摘要

PROBLEM TO BE SOLVED: To give resistance to lettuce higenaga aphid (Nasonovia rivisnigri) biotype Nr: 1 to prickly lettuce (Lactuca sativa) plant, and lettuce higenaga aphid (Nasonovia rivis nigro) Provided is a method for producing, identifying, or selecting a plant or lettuce having a biotype Nr: 1 resistant phenotype. A Lactuca sativa plant comprising a first recombinant chromosomal segment from Lactuca seriola on at least chromosome 8, wherein the recombinant chromosomal segment is compared to a plant lacking the recombinant chromosomal segment. , Said plant comprising an allelic gene that confers resistance to the biotype Nr: 1 of Nasonovia rivisnigri. [Selection diagram] None