We investigated the timing of transgene activation after fertilisation in Arabidopsis following crosses and using two transgenic promoters (from the AtCYCB1 and AtLTP1 genes). Using both a transactivation system and direct transcriptional fusion to drive β‐glucuronidase reporter expression, reciprocal crosses showed a lack of expression of the paternal components. This is consistent with a lack of paternal genome activity previously reported during early seed development in Arabidopsis [Viella‐Calzada et al. (2000) Nature 404, 91–94]. However, transactivation experiments of the BARNASE gene gave evidence that at least some paternal loci retain transcriptional activity, though at a low level, during early embryogenesis.
Paternally inherited transgenes are down‐regulated but retain low activity during early embryogenesis in Arabidopsis
C. Baroux,R. Blanvillain,P. Gallois
Published 2001 in FEBS Letters
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- Publication year
2001
- Venue
FEBS Letters
- Publication date
2001-11-30
- Fields of study
Biology, Medicine
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
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