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About biased and non-biased transmission of chloroplast genes following artificial fusion of gametes in Chlamydomonas reinhardtii

Current Genetics, ISSN: 0172-8083, Vol: 10, Issue: 1, Page: 81-85
1985
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  • Citations
    7
    • Citation Indexes
      7

Article Description

Artificial polyethyleneglycol induced fusions of gametes of opposite mating-types carrying chloroplast markers give rise to fusion products transmitting either both markers or the marker from the mt or from the mt parent exclusively. The frequencies of the three classes of products were approximately equal in our experiments (Matagne 1981). Similar experiments performed by Matsuda et al. (1983) gave different results, namely a preferential transmission of chloroplast gene from the mt parent, very similar to that observed in vegetative zygotes obtained in sexual crosses. Results described here show that in experimental conditions used by Matsuda et al., sexual copulation does occur, leading to formation of zygotes which were misinterpreted as artificial fusion products and gave a biased transmission of chloroplast genes. © 1985 Springer-Verlag.

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