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A genetic linkage map of black raspberry (Rubus occidentalis) and the mapping of Ag (4) conferring resistance to the aphid Amphorophora agathonica

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https://ir.library.oregonstate.edu/concern/articles/cj82k9193

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  • Black raspberry (Rubus occidentalis L.) is a high-value crop in the Pacific Northwest of North America with an international marketplace. Few genetic resources are readily available and little improvement has been achieved through breeding efforts to address production challenges involved in growing this crop. Contributing to its lack of improvement is low genetic diversity in elite cultivars and an untapped reservoir of genetic diversity from wild germplasm. In the Pacific Northwest, where most production is centered, the current standard commercial cultivar is highly susceptible to the aphid Amphorophora agathonica Hottes, which is a vector for the Raspberry mosaic virus complex. Infection with the virus complex leads to a rapid decline in plant health resulting in field replacement after only 3–4 growing seasons. Sources of aphid resistance have been identified in wild germplasm and are used to develop mapping populations to study the inheritance of these valuable traits. We have constructed a genetic linkage map using single-nucleotide polymorphism and transferable (primarily simple sequence repeat) markers for F1 population ORUS 4305 consisting of 115 progeny that segregate for aphid resistance. Our linkage map of seven linkage groups representing the seven haploid chromosomes of black raspberry consists of 274 markers on the maternal map and 292 markers on the paternal map including a morphological locus for aphid resistance. This is the first linkage map of black raspberry and will aid in developing markers for marker-assisted breeding, comparative mapping with other Rubus species, and enhancing the black raspberry genome assembly.
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  • Bushakra, J. M., Bryant, D. W., Dossett, M., Vining, K. J., VanBuren, R., Gilmore, B. S., ... & Bassil, N. V. (2015). A genetic linkage map of black raspberry (Rubus occidentalis) and the mapping of Ag 4 conferring resistance to the aphid Amphorophora agathonica. Theoretical and Applied Genetics, 128(8), 1631-1646. doi:10.1007/s00122-015-2541-x
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  • 128
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  • 8
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  • The authors thank the Washington Red Raspberry Commission, the Oregon Raspberry and Blackberry Commission, the North American Raspberry and Blackberry Growers Association, the USDA-ARS, and the Northwest Center for Small Fruit Research for providing matching funds or other support. This work was funded by the USDA-National Institute of Food and Agriculture (NIFA) Specialty Crop Research Initiative (SCRI) USDA-ARS CRIS 2072-21000-044-00D, 2072-21000-047-00D and 2072-21220-002-00D
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file details ViningKellyCenterGenomeResearchBiocomputingGeneticLinkageMap.pdf 07/26/2017 Público
file details ViningKellyCenterGenomeResearchBiocomputingGeneticLinkageMapSupplementaryFig1.pdf 07/26/2017 Público
file details ViningKellyCenterGenomeResearchBiocomputingGeneticLinkageMapSupplementaryFig2.pdf 07/26/2017 Público
file details ViningKellyCenterGenomeResearchBiocomputingGeneticLinkageMapSupplementaryTable1.pdf 07/26/2017 Público
file details ViningKellyCenterGenomeResearchBiocomputingGeneticLinkageMapSupplementaryTable2.pdf 07/26/2017 Público