Average gene length is highly conserved in prokaryotes and eukaryotes and diverges only between the two kingdoms.

@article{Xu2006AverageGL,
  title={Average gene length is highly conserved in prokaryotes and eukaryotes and diverges only between the two kingdoms.},
  author={Lin Xu and Hong Chen and Xiao Hua Hu and Rongmei Zhang and Ze Zhang and Zewei Luo},
  journal={Molecular biology and evolution},
  year={2006},
  volume={23 6},
  pages={1107-8}
}
The average length of genes in a eukaryote is larger than in a prokaryote, implying that evolution of complexity is related to change of gene lengths. Here, we show that although the average lengths of genes in prokaryotes and eukaryotes are much different, the average lengths of genes are highly conserved within either of the two kingdoms. This suggests that natural selection has clearly set a strong limitation on gene elongation within the kingdom. Furthermore, the average gene size adds… CONTINUE READING
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The insertionofpalindromic repeats in the evolution of protein

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