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| ACCESSION | PLANT NAME | TAXONOMY | ORIGIN | GENEBANK | IMAGE | AVAILABILITY | RECEIVED | SOURCE TYPE | SOURCE DATE | COLLECTION SITE | COORDINATES | ELEVATION | HABITAT | IMPROVEMENT LEVEL | NARRATIVE | | |
|---|
| 0 | PI 673104 | HA-R12 | Helianthus annuus L. | North Dakota, United States | NC7 | | | 2014 | DEVELOPED | | | | | | Breeding material | HA-R12 is a F3-derived F4 maintainer selection from the cross of a resistant plant (BC4F2, 12-55) selected from the cross CONFSCLB1*5/MC29 (AUS) and HA-R6. CONFSCLB1 is a confection maintainer line released by USDA and the North Dakota Agricultural Experiment Station in 2006 susceptible to rust (caused by Puccinia helianthi Schw.). MC29 (AUS) is an Australian selection of the line MC29, an old Canadian sunflower line resistant to the most of North American (NA) rust races. HA-R6 (PI 607509) is a confection maintainer line released by USDA and the North Dakota Agricultural Experiment Station in 2001 resistant to all NA rust races identified so far. HA-R12 was developed by the pedigree breeding method and DNA marker-assisted selection for the rust R-genes R2 from MC29 (AUS) and R13a from HA-R6. The F3-derived HA-R12 is homozygous for the both the R2 and R13a genes verified by DNA markers, and highly rust resistant. Plant height of HA-R12 was 116 cm compared to 104 cm for HA-R6 in the Fargo, ND, field nursery during the summer of 2013. | 1921727 | PI 673104 |
| 1 | PI 673105 | HA-R13 | Helianthus annuus L. | North Dakota, United States | NC7 | | | 2014 | DEVELOPED | | | | | | Breeding material | HA-R13 is a F3-derived F4 maintainer selection from the cross of a homozygous resistant plant (BC3F2, 12-105) selected from CONFSCLB1*4/HA-R2 and HA-R6. CONFSCLB1 is a confection maintainer line released by USDA and the North Dakota Agricultural Experiment Station in 2006 susceptible to rust (caused by Puccinia helianthi Schw.). HA-R2 (PI 650753) is an oilseed maintainer line resistant to the most of NA rust races released by USDA and the North Dakota Agricultural Experiment Station in 1985. HA-R6 (PI 607509) is a confection maintainer line released by USDA and the North Dakota Agricultural Experiment Station in 2001 resistant to all NA rust races identified so far. HA-R13 was developed by the pedigree breeding methods and DNA marker-assisted selection for the rust R-genes R5 from HA-R2 and R13a from HA-R6. The F3-derived HA-R13 is homozygous for the both the R5 and R13a genes verified by DNA markers, and immune to rust. Plant height of HA-R13 was 143 cm compared to 104 cm for HA-R6 in the Fargo, ND, field nursery during the summer of 2013. | 1921728 | PI 673105 |