Summary
Transmission of paternal chloroplasts was observed in Nicotiana, considered to inherit organelles in a strictly maternal way. Plants carrying streptomycin resistant plastids were used as pollen donors. Cell lines with paternal plastids in the offspring were selected as green (resistant) sectors on calli induced from the seedlings on streptomycin-containing media. The presence of paternal plastids in the regenerated plants was confirmed by restriction analysis. In the Nicotiana plumbaginifolia ♀xN. plumbaginifolia Np(SR1)3 ♂ and the N. plumbaginifolia Np(gos)29 ♀xN. tabacum SR1 ♂ crosses 2.5% and 0.07% of the offspring were found to contain paternal (tabacum) plastids, respectively. These plants, however, carried maternal mitochondria exclusively. This sexual cybridization method offers a simple way to transfer chloroplasts solely, a goal not accessible by protoplast fusion.
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Communicated by R.G. Hermann
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Medgyesy, P., Páy, A. & Márton, L. Transmission of paternal chloroplasts in Nicotiana . Molec. Gen. Genet. 204, 195–198 (1986). https://doi.org/10.1007/BF00425497
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DOI: https://doi.org/10.1007/BF00425497