Abstract
Dwarf plants were obtained in an F2 population of a cross betweenSolanum chacoense (clone chc 525-3) andS. phureja (clone 1.22). Segregation analyses in F2 and backcross populations suggested that the dwarfism was controlled by a single recessive gene transmitted fromS. phureja clone 1.22. The dwarf plants responded to treatment with gibberellic acid, which recovered normal growth. We named this gene‘ga 2’. Linkage analysis of the genega 2 with RFLP and RAPD markers indicated that the genega 2 was located on the most or near distal end of chromosome 7.
Resumen
Del cruce entreSolanum chacoense (clon 525-3) yS. phureja (clon 1.22) en una población F2 se obtuvieron plantas enanas. Los análisis de segregación en F2 y las poblaciones en retrocruza sugirieron que el enanismo estuvo controlado por un solo gen recesivo trasmitido del clon 1.22 deS. phureja. Las plantas enanas respondieron al tratamiendo con ácido giberélico después de lo cual recuperaron su crecimiento normal. A este gen lo hemos denominado “ga2”. Los análisis de enlace del genga 2 realizados con marcadores de RFLP y RAPD indicaron que el genga 2 estaba localizado en la parte más extrema del cromosoma 7 o cerca de su extremo distal.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
Literature Cited
Bamberg, J.B. 1999. Screening for gibberellin deficiency mutants inSolanum tuberosum ssp.andigena. Am J Potato Res 76: 321–322.
Bamberg, J.B., and R.E. Hanneman, Jr. 1991. Characterization of anew gibberellin related dwarfing locus in potato (Solanum tuberosum L.). Am Potato J 68: 45–52.
Bamberg, J.B., and R.E. Hanneman, Jr. 1993. Transmission and yield effects of a gibberellin mutant allele in potato. Potato Res 36: 365–372.
Hawkes, J.G. 1990. The Potato-Evolution, Biodiversity and Genetic Resources. Belhaven Press, London.
Hermsen, J.G.Th., L.M. Taylor, E.W.M. van Breukelen, and A. Lipski. 1978. Inheritance of genetic markers from two potato dihapoids and their respective parent cultivais. Euphytica 27: 681–688.
Hosaka, K. 1999. A genetic map of Solanum phureja clone 1.22 constructed using RFLP and RAPD markers. Am J Potato Res 75: 97–102.
Hosaka, K., and R.E. Hanneman, Jr. 1998a. Genetics of self-compatibility in a self-incompatible wild diploid potato speciesSolanum chacoense. Il Detection of an S locus inhibitor (Sli) gene. Euphytica 99: 191–197.
Hosaka, K., and R.E. Hanneman, Jr. 1998b. Genetics of self-compatibility in a self-incompatible wild diploid potato speciesSolanum chacoense. 2. Localization of an S locus inhibitor (Sli) gene on the potato genome using DNA markers. Euphytica 103: 265–271.
Hosaka, K., and D.M. Spooner. 1992. RFLP analysis of the wild potato species,Solanum acaule Bitter (Solanum sect.Petota). Theor Appl Genet 84: 851–858.
Kotch, G.P., and S.J. Peloquin. 1987. A new sources of haploid germplasm for genetic and breeding research. Am Potato J 64: 137–141.
Lander, E.S., P. Green, J. Abrahamson, A. Barlow, M.J. Daly, S.E. Lincoln, and L. Newburg. 1987. Mapmaker: An interactive computer package for constructing primary genetic linkage maps of experimental and natural populations. Genomics 1: 174–181.
Tanksley, S.D., M.W. Ganal, J.P. Prince, M.C. de Vicente, M.W. Bonierbale, P. Broun, T.M. Fulton, J.J. Giovannoni, S. Grandillo, G.B. Martin, R. Messeguer, J.C. Miller, L. Miller, A.H. Paterson, O. Pineda, M.S. Röder, R.A. Wing, W. Wu, and N.D. Young. 1992. High density molecular linkage maps of the tomato and potato genomes. Genetics 132: 1141–1160.
Valkonen, J.P.T., T. Moritz, K.N. Watanabe, and V.-M. Rokka 1999. Dwarf (di)haploidpito mutants obtained from a tetraploid potato cultivar (Solanum tuberosum, subsp.tuberosum) via anther culture are defective in gibberellin biosynthesis. Plant Sci 149: 51–57.
van den Berg, J.H., I. Simko, P.J. Davies, E.E. Ewing, and A. Halinska 1995. Morphology and [14C]gibberellm A12 metabolism in wildtype and dwarfSolanum tuberosum ssp.andigena grown under long and short photoperiods. J Plant Physiol 146: 467–473.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Kimura, T., Hosaka, K. Genetic mapping of a dwarfing gene found inSolanum phureja clone 1.22. Am. J. Pot Res 79, 201–204 (2002). https://doi.org/10.1007/BF02871935
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02871935