# US 11,991,965 B2 · Potato late blight resistance in potato, Solanum tuberosum L

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- Number: US 11,991,965 B2
- Document ID: US11991965B2
- Status: Granted
- Kind: B2
- Application number: 17/293,204
- Filed: 2019-11-11
- Published: 2022-01-06
- Granted: 2024-05-28
- Earliest claimed: 2018-11-13
- Assignees: Bejo Zaden B.V.
- Applicants: Bejo Zaden B.V.
- Inventors: Cornelis Anthonius Schuit; Martinus Jacobus Theodorus Klaver; Marie Anne Sophie Jeanne Elisabeth Hardy; Dora Lisa Moita E Coelho; Albertus Johannes Maria Schrijver
- Web page: https://patentgrep.com/patent/US11991965B2

## CPC

- A01H 1/1245: {for biotic stress resistance, e.g. pathogen, pest or disease resistance}
- A01H 5/04: Stems
- A01H 6/827: {Solanum tuberosum [potato]}
- A01H: NEW PLANTS OR {NON-TRANSGENIC} PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES

## Abstract

Provided herein is a genetic determinant for potato late blight resistance caused by the plant pathogen Phytophtora infestans, in potato, Solanum tuberosum L. Specifically, disclosed herein are Solanum tuberosum plants having a genetic determinant providing qualitative resistance against Phytophtora infestans which genetic determinant is located in the distal part of chromosome 12 of Solanum tuberosum between positions 60.1 and 67.2. Mbp and which genetic determinant is obtainable from a Solanum tuberosum plant with deposit No. NCIMB 43225.

## Claims

### Claim 1

A Solanum tuberosum plant comprising in its genome a genetic determinant providing qualitative resistance against Phytophthora infestans, wherein the genetic determinant is located in the distal part of chromosome 12 of said Solanum tuberosum between positions 60.1 and 67.2 Mbp and comprising a quantitative trait locus at 59,870,038 bp of chromosome 12, representative seed of said Solanum tuberosum plant deposited with NCIMB under Accession No. NCIMB 43225.

### Claim 2 (depends on 1)

The Solanum tuberosum plant according to claim 1, wherein said Solanum tuberosum plant is grown from a seed.

### Claim 3 (depends on 2)

The Solanum tuberosum plant according to claim 2, wherein said seed is diploid.

### Claim 4 (depends on 2)

The Solanum tuberosum plant according to claim 2, wherein said seed is tetraploid.

### Claim 5 (depends on 1)

A tuber or plant part of the Solanum tuberosum plant according to claim 1, wherein the tuber or plant part comprises the genetic determinant and the quantitative trait locus on chromosome 12.

### Claim 6 (depends on 1)

A seed of the Solanum tuberosum plant according to claim 1, wherein the seed comprises the genetic determinant and the quantitative trait locus on chromosome 12.

### Claim 7

A method for providing a Solanum tuberosum plant having qualitative resistance against Phytophthora infestans, the method comprising introgressing a genetic determinant providing qualitative resistance against Phytophthora infestans and a quantitative trait locus at 59,870,038 bp of chromosome 12 from the Solanum tuberosum plant deposited with NCIMB under Accession No. NCIMB 43225 into a susceptible Solanum tuberosum plant, thereby producing the Solanum tuberosum plant having qualitative resistance against Phytophthora infestans.

### Claim 8 (depends on 1)

A Solanum tuberosum plant obtainable by vegetative propagation of the Solanum tuberosum plant according to claim 1, wherein said vegetatively propagated Solanum tuberosum comprises in its genome the genetic determinant located in the distal part of chromosome 12 between positions 60.1 and 67.2 Mbp and the quantitative trait locus at 59,870,038 bp of chromosome 12.