Evolution of Polyadenylation Signals in Green Algae
Author Information
Author(s): Wodniok Sabina, Simon Andreas, Glöckner Gernot, Becker Burkhard
Primary Institution: Botanisches Institut, Universität zu Köln
Hypothesis
What are the differences in polyadenylation signals between streptophytes and chlorophytes that may have emerged after their evolutionary split?
Conclusion
Polyadenylation signals in green algae show considerable variation, with a new signal (UGUAA) evolving in derived chlorophytes.
Supporting Evidence
- The UGUAA motif is confined to late-branching Chlorophyta.
- Most streptophyte algae do not have an A-rich sequence motif.
- Polyadenylation signals vary widely among green algae.
Takeaway
This study looks at how different types of signals that help make RNA work vary in green algae, showing that some algae have unique signals.
Methodology
The study analyzed expressed genes (ESTs) from various green algae to compare polyadenylation signals.
Limitations
The number of mRNAs with a poly(A) tail investigated is still rather low for some species.
Statistical Information
P-Value
p<0.05
Confidence Interval
95%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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