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Updated: May 4, 2026

Agrobacterium-Mediated Immature Embryo Transformation of Recalcitrant Maize Inbred Lines Using Morphogenic Genes
Published on: February 14, 2020
Male gametophyte in maize: Influences of the gametophytic genotype
C M Johnson1, D L Mulcahy, W C Galinat
1Department of Botany, University of Massachusetts, Amherst, Massachusetts, USA.
Abstract:
Size and variation in pollen samples were investigated in several successively selfed generations. A significant decrease in mean diameter of pollen grains accompanied inbreeding; also decreased variation in pollen size from individual plants was observed. Since loss of developmental homeostasis in the sporophyte could affect variation in the gametophyte, sporophytic characters were observed as a control. The main conclusion reached in this study was that pollen diameter is influenced by the gametophytic genotype.
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