Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-03T05:22:18.875Z Has data issue: false hasContentIssue false
  • English
  • Français

Cytogenetic relationships of certain artificial and natural species of Avena

Published online by Cambridge University Press:  27 March 2009

D. J. Griffiths ,
D. G. Rowlands  and
W. T. H. Peregrine
D. J. Griffiths
Affiliation:
Welsh Plant Breeding Station, Aberystwyth
D. G. Rowlands
Affiliation:
Welsh Plant Breeding Station, Aberystwyth
W. T. H. Peregrine
Affiliation:
Welsh Plant Breeding Station, Aberystwyth
Get access Rights & Permissions [Opens in a new window]

Extract

1. The desirability of employing the genetic variation present in diploid and tetraploid wild species for the improvement of the cultivated hexaploid species stimulated an investigation into the synthesis of various amphiploid forms in Avena.

2. Five amphiploids at the hexaploid level have been produced, but the present investigation is limited to the amphiploids developed from the cross A. barbata (2n = 28)×.A. strigosa subsp. hirtula (2n= 14), their hybrids with the natural hexaploid species and with other amphiploid types.

3. These amphiploids, like their parents, possessed black paleae, with hairs and a fairly strong geniculate awn on both the lower and upper grains. The bases of both the lower and upper grains possessed the articulation surfaces characteristic of A. fatua. Their hybrids with A. fatua were similar in spikelet morphology, but the A. sterilis type of spikelet was dominant in both the amphiploid 6x × A. sterilis and amphiploid 6x × A. byzantina. Partial dominance of the cultivated type base over the shedding type was evident in crosses with A. sativa and A. nuda but the naked caryopsis and multiflorous spikelet were recessive in the latter cross. In crosses between the A. barbata/A. hirtula 6x amphiploid and the A. abyssinica/A. strigosa 6x amphiploid (Cc 4387) the hybrid exhibited a reversal of dominance relationships, with the cultivated base type of Cc4387 being completely recessive to the shedding base.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 52 , Issue 2 , April 1959 , pp. 189 - 199
Copyright
Copyright © Cambridge University Press 1959

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Bell, G. D. H. (1950). J. Agric. Sci. 40, 9.CrossRefGoogle Scholar
Bell, G. D. H. & Sachs, L. (1953). J. Agric. Sci. 43, 105.CrossRefGoogle Scholar
Caporn, A. St C. (1918). J. Genet. 7, 229.Google Scholar
Darlington, C. D. & La Cour, L. F. (1947). The Handling of Chromosomes. London: George Allen and Unwin.Google Scholar
Ellison, W. (1938). J. Genet. 36, 515.Google Scholar
Ellison, W. (1940). Genetica, 22, 409.Google Scholar
Emme, H. (1932). Bull. Appl. Bot., Genet, and Plant Breeding (Ser. II), 1, 169.Google Scholar
Howard, H. W. (1947). J. Agric. Sci. 37, 139.Google Scholar
Jones, E. T. (1940). Genetica, 22, 419.Google Scholar
Joshi, A. B. & Howard, H. W. (1955 a). J. Agric. Sci. 45, 380.Google Scholar
Joshi, A. B. & Howard, H. W. (1955 b). J. Agric. Sci. 46, 183.Google Scholar
Kihara, H. & Nishiyama, I. (1932). Jap. J. Bot. 6, 254.Google Scholar
Lesik, F. L. (1949). Zuchter, 19, 276 (Abstract).Google Scholar
Love, H. H. & McRostie, G. P. (1919). Amer. Nat. 52, 269.Google Scholar
Nishiyama, I. (1929). Jap. J. Genet. 5, 1.Google Scholar
Nishiyama, I. (1936). Cytologia, 7, 276.Google Scholar
Sachs, L. (1952). Heredity, 6, 157.Google Scholar
Spier, J. D. (1934). Canad. J. Res. 11, 347.Google Scholar
Zillinsky, F. J. (1956). Canad. J. Agric. Sci. 36, 107.Google Scholar
Zinn, J. & Surface, F. M. (1917). J. Agric. Res. 10, 293.Google Scholar