Differences in the embryo specific globulins among maize zea mays inbred lines and their hybrids

Cross, J.W.; Adams, W.R.

Crop Science 23(6): 1160-1162


ISSN/ISBN: 0011-183X
Accession: 005151261

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The subunit composition of the major seed embryo globulins of corn was studied in a series of inbred lines and their hybrids. Polypeptides of molecular weight (in kilodaltons, kD) of 65, 50, 30, 29 and 21 kD were common to all inbreds nad hybrids examined. Certain genotypes contained additional polypeptides. For instance, embryos of Mo17 contained a 58 kD polypeptide not found in B73, and embryos of B73 contained a 42 kD polypeptide not found in Mo17. The hybrid B73 .times. Mol7 contained both of these polypeptides. The pattern of embryo globulin peptides is apparently distinctive in a particular inbred line and could be employed as part of a test for identity.