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Gene Localization of Aspartate Aminotransferase and Endopeptidase Isozymes in Wheat and Rye Using Developmental and Organ‐Specific Patterns
Author(s) -
Drefahl Sonja,
Buschbeck R.
Publication year - 1991
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.1991.tb01209.x
Subject(s) - biology , isozyme , gene , genetics , chromosome , endopeptidase , allele , biochemistry , enzyme
Wheat, rye and wheat‐rye addition lines have been investigated regarding their developmental and organ‐specific isozyme patterns of aspartate amino‐transferase (AAT) and endopeptidase (EP). Evidence is given, that development‐specific isozymes of AAT are encoded by chromosomes 3R and 4R of ‘Imperial’ rye which can be used as biochemical markers up to leaf age of 14 days. Organ‐specific increase of intensity of bands for AAT in stems could be assigned to genes or alleles of chromosome 3A of ‘Chinese Spring’ wheat. For EP new markers were localized on chromosomes 4R and 6R of ‘Imperial’ rye showing variability. Utilization of these markers is possible at all developmental stages of the leaves. Mechanisms of gene regulation are discussed.