A Hypothesis for the Evolution of Nuclear-Encoded, Plastid-Targeted Glyceraldehyde-3-Phosphate Dehydrogenase Genes in 'Chromalveolate' Members
2009

Evolution of GapC Genes in Chromalveolates

Sample size: 14 publication 10 minutes Evidence: moderate

Author Information

Author(s): Takishita Kiyotaka, Yamaguchi Haruyo, Maruyama Tadashi, Inagaki Yuji

Primary Institution: Japan Agency for Marine-Earth Science and Technology (JAMSTEC)

Hypothesis

The study proposes that multiple lateral gene transfer events explain the evolution of GapC genes in chromalveolates.

Conclusion

The research suggests that GapC genes in photosynthetic eukaryotes may have evolved through lateral gene transfer rather than vertical inheritance.

Supporting Evidence

  • Phylogenetic analyses revealed that GapC1 genes are not necessarily inherited from a common ancestor.
  • New GapC1 genes were identified from nine stramenopile and two cryptophyte species.
  • Results indicated that lateral gene transfer events played a significant role in GapC1 evolution.

Takeaway

Scientists studied how certain genes evolved in algae and found that they might have been shared between different species instead of being passed down from a common ancestor.

Methodology

Phylogenetic analyses were conducted on a dataset of GapC1 genes from various stramenopile and cryptophyte species.

Potential Biases

Potential biases may arise from the selection of gene sequences and the interpretation of phylogenetic relationships.

Limitations

The study's conclusions are based on phylogenetic analyses that may not account for all possible evolutionary scenarios.

Statistical Information

P-Value

2×10−6

Statistical Significance

p<0.01

Digital Object Identifier (DOI)

10.1371/journal.pone.0004737

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