Structure and evolution of Apetala3, a sex-linked gene in Silene latifolia
2010

Study of the AP3 Gene in Silene latifolia

publication Evidence: moderate

Author Information

Author(s): Cegan Radim, Marais Gabriel A B, Kubekova Hana, Blavet Nicolas, Widmer Alex, Vyskot Boris, Doležel Jaroslav, Šafář Jan, Hobza Roman

Primary Institution: Institute of Biophysics, Academy of Sciences of the Czech Republic

Hypothesis

The AP3 gene has been transferred from an autosome to the Y chromosome in Silene latifolia.

Conclusion

The study reveals that the AP3 gene has copies on both the X and Y chromosomes, showing complementary expression patterns and relaxed evolution compared to autosomal orthologues.

Supporting Evidence

  • The study provides evidence for the existence of an X linked copy of the AP3 gene.
  • Promoter sequences of the X and Y copies differ significantly.
  • The Y copy shows evidence for relaxed selection compared to autosomal orthologues.

Takeaway

This study looks at a gene that helps determine the sex of a plant and shows how it has changed over time, with different versions on the X and Y chromosomes.

Methodology

The study involved screening BAC libraries, PCR amplification, and expression analysis of the AP3 gene and its alleles.

Limitations

The study may not account for all genetic variations and environmental factors affecting gene expression.

Statistical Information

P-Value

0.0149

Statistical Significance

p=0.0149

Digital Object Identifier (DOI)

10.1186/1471-2229-10-180

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