The present invention relates to diploid, fertile, self-compatible and essentially homozygous potato lines, wherein said lines comprise an agronomically desirable trait such as vigour. The invention further relates to methods for producing such plants and to hybrid seeds obtained by crossing such homozygous potato lines and to potato plants grown from said see.

Provided herein are hybrid True Potato Seeds (TPS). Also provided herein are potato plants grown from the present hybrid True Potato Seeds and the potato tubers produced by these plants. Also provided herein is use of the present potato tubers for vegetative propagation thereof and to the use of the present potato tubers as seed potato for producing potato tubers for consumption and the food processing industry. Specifically, provided herein are hybrid True Potato Seed (TPS), wherein the seed is tetraploid and is produced as an F1 of a cross between a tetraploid male potato line and a tetraploid female potato line and preferably to hybrid True Potato Seed (TPS) wherein said tetraploid male potato line and said tetraploid female potato line have a sufficient degree of genetic and phenotypic uniformity to yield, as F1, hybrid True Potato Seed (TPS).

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.

The spirosolane skeleton 23-position hydroxylase gene and the spirosolane skeleton 23-position acetyltransferase gene derived from S. chacoense, S. tuberosum, and S. lycopersicum are found to be involved with the biosynthesis of leptine, which achieves resistance against Colorado potato beetle.

The present application relates to the technical field of genetic breeding, and provides a method for identifying whether a diploid potato is self-compatible. The method relates to identifying whether a StSCI gene in the diploid potato is transcribed and expressed. Also disclosed is a method for identifying whether a StSCI gene is expressed by using molecular marker, and a method of screening for the molecular marker, which includes: obtaining the genome sequence information of parental materials, screening for difference sites of the parental materials, screening for the molecular marker, and identifying whether the screened molecular marker are usable. As for the identification of the self-compatibility of a diploid potato by using the screened molecular marker, the identification workload is small, a lot of time is saved, and the identification result is not affected by the environment, and it is accurate and reliable.

A potato cultivar designated FL 2505 is disclosed. The invention relates to tubers of potato cultivar FL 2505, to seeds of potato cultivar FL 2505, to plants and plant parts of potato cultivar FL 2505, to food products produced from potato cultivar FL 2505, and to methods for producing a potato plant by crossing potato cultivar FL 2505 with itself or with another potato variety. The invention also relates to methods for producing a transgenic potato plant and to the transgenic potato plants and parts produced by those methods. This invention also relates to potato plants and plant parts derived from potato cultivar FL 2505, to methods for producing other potato plants or plant parts derived from potato cultivar FL 2505 and to the potato plants and their parts derived from use of those methods. The invention further relates to hybrid potato tubers, seeds, plants and plant parts produced by crossing potato cultivar FL 2505 with another potato cultivar.

A method for producing a genetically modified potato, which includes introducing deletion, insertion, or substitution into a CSLM gene of a potato. The genetically modified potato includes the CSLM gene into which deletion, insertion, or substitution is introduced.

A new and distinct clonal line plant of Solanum tuberosum L. named KI964 and characterized by elevated levels of proteinase inhibitor II.

A new and distinct clonal line plant of Solanum tuberosum L. named KI969 and characterized by elevated levels of proteinase inhibitor II.

A new and distinct clonal line plant of Solanum tuberosum L. named KI969 and characterized by elevated levels of proteinase inhibitor II.