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Some aspects of inbreeding in haploids of tetraploidSolanum tuberosum L.

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Abstract

Inbreeding depression occurs in haploid (2n = 2X = 24) potatoes (Solarium tuberosum L.) extracted from tetraploid (2n = 4X = 48) potatoes. This depression has been postulated to occur due to the loss of intralocus interactions, the loss of favorable epistatic combinations in normal meiosis, inbreeding depression, or the exposure of deleterious genes. The inbreeding coefficient of haploids extracted from tetraploids is derived in this paper. This inbreeding coefficient is a function of the inbreeding levels in the parents, the coefficient of coancestry of the parents, and the coefficient of double reduction. When the coefficient of double reduction is greater than zero, the inbreeding coefficient of the haploid is greater than the inbreeding coefficient of the tetraploid from which it was extracted. The implications of these results on breeding strategies employing haploids is discussed.

Compendio

Ocurre una depresion del retrocruzamiento en papas (Solanum tuberosum L.) haploides (2n = 2x = 24) extraídas de papas tetraploides (2n = 4x = 48). Se ha asumido que esta depresión ocurre debido a la pérdida de interacciones de intralocus, a la pérdida de combinaciones epistáticas favorables en meiosis normales, a la depresión del retrocruzamiento, o a la exposición de genes perniciosos. En este documento, se obtiene el coeficiente del retrocruzamiento de haploides extraídos de tetraploides. Este coeficiente de retrocruzamiento es una función de los niveles de retrocruzamiento en los padres, el coeficiente de la coascendencia de los mismos, y el coeficiente de doble reducción. Cuando el coeficiente de doble reducción es mayor que cero, el coeficiente de retrocruzamiento del haploide es mayor que el coeficiente de retrocruzamiento del tetraploide del que fue extraído. Se discute las implicancias de estos resultados sobre las estrategias de mejoramiento que emplean haploides.

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Literature Cited

  1. Chase, S.S. 1963. Analytic breeding inSolanum tuberosum L. -A scheme utilizing parthenotes and other diploid stocks. Can J Genet Cytol 5:359–363.

    Google Scholar 

  2. Crow, J.F. and M. Kimura. 1970. An introduction to population genetics theory. Harper and Row Pub Inc, 591 pg.

  3. De Jong, H. and P.R. Rowe 1971. Inbreeding in cultivated diploid potatoes. Potato Res 14:74–83.

    Article  Google Scholar 

  4. DeMaine, M.J. 1978. Field resistance to late blight and potato root eelworm in group tuberosum dihaploids. Euphytica 27:305–315.

    Article  Google Scholar 

  5. DeMaine, M.J. 1982. An evaluation of the use of dihaploids and unreduced gametes in breeding for quantitative resistance to potato pathogens. J Agric Sci 99:79–83.

    Google Scholar 

  6. DeMaine, M.J. 1984. Patterns of variation in potato dihaploid families. Potato Res 27:1–11.

    Article  Google Scholar 

  7. DeMaine, M.J., L.A. Farrer, and M.S. Phillips. 1986. Breeding for quantitative resistance to potato cyst nematode (Globodera pallida) in tetraploid potatoes using dihaploids and unreduced gametes. Euphytica 39:1001–1006.

    Article  Google Scholar 

  8. Fish, N. and M.G.K. Jones 1988. A comparison of tissue culture response between related tetraploid and dihaploidS. tuberosum genotypes. Plant Cell, Tissue and Organ Culture 15:201–210.

    Article  Google Scholar 

  9. Freyre, R. and D.S. Douches. 1991. Use of molecular markers for the study and analyses of quantitative tuber traits in diploid potatoes (Solanum spp.). Am Potato J 68:609.

    Google Scholar 

  10. Haynes, K.G. 1992. Some aspects of inbreeding in derived tetraploids of potatoes. J Hered 83:67–70.

    Google Scholar 

  11. Haynes, K.G. and D.S. Douches. 1993. Estimation of the coefficient of double reduction in the cultivated tetraploid potato. Theor Appl Genet (In press).

  12. Hermundstad, S.A. and S.J. Peloquin. 1985. Germplasm enhancement with potato haploids. J Hered 76:463–467.

    Google Scholar 

  13. Hermundstad, S.A. and S.J. Peloquin. 1986. Tuber yields and tuber traits of haploidwild species F1 hybrids. Potato Res 29:289–297.

    Article  Google Scholar 

  14. Hougas, R.W. and S.J. Peloquin. 1957. A haploid plant of the potato variety Katahdin. Nature 180:1209–1210.

    Article  Google Scholar 

  15. Hougas, R.W. and S.J. Peloquin 1958. The potential of potato haploids in breeding and genetic research. Am Potato J 35:701–707.

    Google Scholar 

  16. Hougas, R.W., S.J. Peloquin, and A.C. Gabert 1964. Effect of seed-parent and pollinator on frequency of haploids inSolatium tuberosum. Crop Sci 4:593–595.

    Article  Google Scholar 

  17. Hougas, R.W., S.J. Peloquin, and R.W. Ross 1958. Haploids of the common potato. J Hered49:103–107.

    Google Scholar 

  18. Malecot, G. 1969. The mathematics of heredity (Yermanos DM trans). San Francisco: Freeman, 88 pg.

    Google Scholar 

  19. Mather, K. 1935. Reductional and equational separation of the chromosomes in bivalents and multivalents. J Genet 30:53–78.

    Article  Google Scholar 

  20. Mather, K. 1936. Segregation and linkage in autotetraploids. J Genet 32:287–314.

    Google Scholar 

  21. Mendiburu, A.O., S.J. Peloquin and D.W.S. Mok 1974. Potato breeding with haploids and 2n gametes.In: Kasha K.J., (Ed.). Haploids in Higher Plants, Guelph University Press; Guelph, Ontario, Canada: 249–258.

    Google Scholar 

  22. Mendoza, H.A. and F.L. Haynes 1973. Some aspects of breeding and inbreeding in potatoes. Am Potato J 50:216–222.

    Google Scholar 

  23. Mendoza, H.A. and F.L. Haynes 1974. Genetic relationship among potato cultivars grown in the United States. HortScience 9:328–330.

    Google Scholar 

  24. M’Ribu, H. Kaburu and R.E. Veilleux. 1990. Field evaluation of the breeding value of doubled monoploids from a clone of the diploid potato speciesSolarium phureja Juz. & Buk. Am Potato J 67:566.

    Google Scholar 

  25. Mullin, R. and F.I. Lauer 1966. Breeding behavior of F1 and inbred potato clones. Proc Amer Soc Hort Sci 89:449–455.

    Google Scholar 

  26. Peloquin, S.J. and R.W. Hougas. 1960. Genetic variation among haploids of the common potato. Am Potato J 37:289–297.

    Google Scholar 

  27. Ross, H. 1986. Potato breeding: problems and perspectives. Verlag Paul Parey, Berlin/Hamburg, 132 pg.

    Google Scholar 

  28. Sanford, J.C. and R.E. Hanneman, Jr. 1982. Intermating of potato haploids and spontaneous sexual polyploidization-effects on heterozygosity. Am Potato J 59:407–414.

    Google Scholar 

  29. Yerk, G.L. and S.J. Peloquin. 1989. Comparison of 2n and non-2n pollen-producing haploid × wild species hybrids in potato. J Hered 80:468–471.

    Google Scholar 

  30. Yerk, G.L. and S.J. Peloquin. 1990. Selection of potato haploid parents for use in crosses with 2 × (2 Endosperm Balance Number) wild species. Crop Sci 30:943–946.

    Article  Google Scholar 

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Haynes, K.G. Some aspects of inbreeding in haploids of tetraploidSolanum tuberosum L.. American Potato Journal 70, 339–344 (1993). https://doi.org/10.1007/BF02851427

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