ISSN:
1439-0523
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Isoenzyme analyses have been carried out in polyploid rye. Taking into consideration zymograms at the diploid level, conclusions can be drawn concerning the genetics of band positions and band intensity. This is rather clear with the aspartate aminotransferase and the NAD-specific aromatic alcohol dehydrogenase. For both isoenzymes one gene locus with two alleles is responsible in the zones analyzed. In both cases a superdominance is assumed. Thereby nulliplex-, simplex-, duplex-, triplex- and quadru-plex types can be distinguished. For the banding pattern with the leucine aminopeptidase two gene loci with two alleles each are responsible. With allelic interaction codominance is supposed. On this base it is possible to differentiate between homozygosity and heterozygosity. Difficulties in autopolyploid breeding can be overcome by means of genetically-analyzed isoenzymes as markers. This is demonstrated by examples.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1439-0523.1990.tb00462.x
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