Letter | Published:

Origin of Unreduced Embryo Sacs in Diploid Potatoes

Naturevolume 247pages378379 (1974) | Download Citation

Subjects

Abstract

THERE are clear advantages in carrying out potato breeding at the diploid level, but it is likely that the expression of maximum productivity occurs at the tetraploid level1. One way in which diploids can be brought to the tetraploid level is by 2x–4x or 4x–2x crosses. It has long been known that a large proportion of the progeny of such crosses is tetraploid2,3, and it is generally recognised that unreduced gametes with the somatic chromosome number (2n) are produced by the diploid parent and these, with normal gametes (n) of the tetraploid parent, give tetraploid offspring.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1

    Chase, S. S., Can. J. Genet. Cytol., 5, 359 (1963).

  2. 2

    Swaminathan, M. S., and Howard, H. W., Biblphia genet., 16, 1 (1953).

  3. 3

    Hanneman, R. E., and Peloquin, S. J., Am. Pot. J., 45, 255 (1968).

  4. 4

    Mendiburu, A. O., thesis (Univ. of Wisconsin, 1971).

  5. 5

    Mendiburu, A. O., Peloquin, S. J., and Hanneman, R. E., Am. Pot. J., 47, 356 (1970).

  6. 6

    Mendiburu, A., and Peloquin, S. J., Am. Pot. J., 48, 300 (1971).

  7. 7

    Wang, H., Peloquin, S. J., and Mendiburu, A., Am. Pot. J., 48, 301 (1971).

  8. 8

    Mok, D., and Peloquin, S. J., Am. Pot. J., 49, 362 (1972).

  9. 9

    Wangenheim, K. H. v., Chromosoma, 8, 671 (1957).

  10. 10

    Kidane, M., Haile, M., Peloquin, S. J., and Mendiburu, A., Am. Pot. J., 48, 301 (1971).

  11. 11

    Kidane, M., Haile, M., and Peloquin, S. J., Am. Pot. J., 49, 363 (1972).

  12. 12

    Ross, H., Caryologia, 6 (Suppl.), 1128 (1954).

  13. 13

    Cockerham, G., Heredity, Lond., 25, 309 (1970).

  14. 14

    Koopmans, A., and Van der Burg, A. H., Genetica, 26, 102 (1952).

Download references

Author information

Affiliations

  1. Max-Planck-Institut für Züchtungsforschung, Abteilung Straub, 5, Köln, 30, West Germany

    • H. Ross
    •  & F. A. LANGTON

Authors

  1. Search for H. Ross in:

  2. Search for F. A. LANGTON in:

About this article

Publication history

Received

Issue Date

DOI

https://doi.org/10.1038/247378a0

Further reading

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.