Comparison of isoenzyme spectra in Zea mays L., Euchlaena mexicana Schr. and Tripsacum dactyloides L

Monastyreva, L.E.; Sukhorzhevskaya, T.B.; Reimers, F.E.; Khavkin, E.E.; Shcherbak, V.S.

Doklady Akademii Nauk SSSR 231(6): 1468-1471


ISSN/ISBN: 0002-3264
Accession: 000321597

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As regards their glutamate dehydrogenase pattern, the forms of maize studied fell into three groups, groups A and B having a seven-band pattern differing only in staining intensity; line S103 alone belonged to the third group, which had a two-band pattern. Teosinte and Tripsacum both had seven bands, the former having maize pattern A and the latter a different pattern from maize. Two aspartate transaminase patterns occurred in maize, 46 out of 50 lines having pattern A, which was also found in teosinte; Tripsacum had pattern B. As regards the succinate dehydrogenase pattern, maize fell into five groups: 18% of lines belonged to group A, 62% to B, 8% to C, 10% to D and 2% to E. Teosinte and Tripsacum both had pattern B. The results suggest that teosinte is evolutionarily closer to maize than is Tripsacum.