Abstract
The I3 cDNA isolated from a library made from 2–4 mm (immature) anthers of Brassica napus shows microspore-specific expression. Homologous transcripts are detected in buds and anthers of male-fertile plants, but not in green tissues, roots, or in cytoplasmic male-sterile buds. High expression of the transcript is limited to microspores entering and undergoing mitosis. The predicted peptide sequence of the cDNA shows an unusual repeated alanine/proline motif at the C-terminus, which may be of importance in the native protein structure.
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References
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Roberts, M.R., Robson, F., Foster, G.D. et al. A Brassica napus mRNA expressed specifically in developing microspores. Plant Mol Biol 17, 295–299 (1991). https://doi.org/10.1007/BF00039509
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DOI: https://doi.org/10.1007/BF00039509