Premeiotic Mitosis in Maize: Evidence for Pairing of Homologues

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Abstract
The last premeiotic mitosis was studied in sporogenous tissue of maize anthers. This division is poorly synchronized and of short duration (relative to the premeiotic interphase). In these mitotic cells homologous chromosomes appear closely paired side by side at metaphase. It is not clear whether such association is initiated at the prophase of this division (from a heretofore random distribution), but observable homologous association seems to begin in this material at about mid-prophase and to be maximal at metaphase. It is also visible at anaphase.