Hybrid seed potato breeding
AssigneeAgventure B.V.
InventorsWillem Hendrik Lindhout, Teunis Philippus Schotte, Richard Gerardus Franciscus Visser, Herman Johannes van Eck, Ronaldus Cornelis Bernardus Hutten
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Abstract
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.
Claims10
A plant of a potato line, wherein said potato line is of the species Solanum tuberosum optionally comprising introgression segments of other tuber bearing Solanum species crossable to Solanum tuberosum, wherein said potato line is diploid, fertile, self-compatible, produces at least 200 grams fresh weight of tubers per plant, and at least 75% of the genomic loci in said potato line are homozygous, wherein said self-compatibility in said potato line is conferred by the S-locus inhibitor (Sli) gene, and wherein a copy of said gene is present in potato lines AGVD1, AGVD2, AGVD3, and AGVD17, representative seeds of said lines having been deposited with the NCIMB under NCIMB accession number 41663, NCIMB accession number 41664, NCIMB accession number 41665, and NCIMB accession number 41765, respectively.
A method of producing a uniform diploid hybrid Solanum tuberosum potato seed, which seed, when sown produces a diploid, fertile, and self-compatible potato plant having a tuber yield expressed in grams of fresh weight of at least 200 grams and wherein said self-compatibility trait is due to the presence of the Sli gene, said method comprising:
- (a) providing a first potato plant, wherein said first potato plant is a plant of a first potato line, wherein said first potato line is of the species Solanum tuberosum optionally comprising introgression segments of other tuber bearing Solanum species crossable to Solanum tuberosum, wherein said first potato line is diploid, fertile, self-compatible and wherein at least 75% of the genomic loci in said first potato line are homozygous, and wherein said self-compatibility in said first potato line is conferred by the Sli gene, wherein a copy of said gene is present in potato lines AGVD1, AGVD2, AGVD3, and AGVD17, representative seeds of said lines having been deposited with the NCIMB under NCIMB accession number 41663, NCIMB accession number 41664, NCIMB accession number 41665, and NCIMB accession number 41765, respectively, and wherein said first potato plant has a tuber yield expressed in grams of fresh weight of at least 200 grams;
- (b) providing a second potato plant, wherein said second potato plant is a plant of a second potato line, wherein said second potato line is of the species Solanum tuberosum optionally comprising introgression segments of other tuber bearing Solanum species crossable to, wherein said second potato line is diploid fertile, self-compatible and wherein at least 75% of the genomic loci in said second potato line are homozygous, wherein said self-compatibility in said second potato line is conferred by Sli gene, wherein a copy of said gene is present in potato lines AGVD1, AGVD2, AGVD3, and AGVD17, representative seeds of said lines having been deposited with the NCIMB under NCIMB accession number 41663, NCIMB accession number 41664, NCIMB accession number 41665, and NCIMB accession number 41765, respectively, wherein said second potato plant has a tuber yield expressed in grams of fresh weight of at least 200 grams, and wherein said second potato plant contains at least 20% contrasting homozygous loci as determined by molecular marker analysis when compared to said first potato plant;
- (c) cross-pollinating said first and said second potato plant and allowing said potato plant to produce berries with seeds;
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- (d) collecting said seeds from said berries to provide hybrid potato seeds.
Dependencies are inferred from the claim text.