Meanwhile, I’ve just run through my collection of peer reviewed scientific papers devoted to the evolvabliity of the “genetic code”, and it turns out that no less than twenty–three such papers were published as of 2011. Of course, more may have been added since, but I’ve yet to check for additions, which may appear later. For the meantime, here’s the 23 citations in question:
[1] A Co-Evolution Theory Of The Genetic Code[/i] by J. Tze-Fei Wong, Proceedings of the National Academy of Sciences of the USA, 72(5): 1909-1912 (May 1975)
[2] A Mechanism For The Association Of Amino Acids With Their Codons And The Origin Of The Genetic Code by Shelley D. Copley, Eric Smith & Harold J. Morowitz, Proceedings of the National Academy of Sciences of the USA, 102(12): 4442-4447 (22nd March 2005)
[3] An Expanded Genetic Code With A Functional Quadruplet Codon by J. Christopher Anderson, Ning Wu, Stephen W. Santoro, Vishva Lakshman, David S. King & Peter G. Schultz, Proceedings of the National Academy of Sciences of the USA, 101(20): 7566-7571 (18th May 2004)
[4] Collective Evolution And The Genetic Code by Kalin Vetsigian, Carl Woese and Nigel Goldenfeld, Proceedings of the National Academy of Sciences of the USA, 103(28): 10696-10701 (11th July 2006)
[5] Emergence Of A Code In The Polymerization Of Amino Acids Along RNA Templates by Jean Lehmann, Michael Cibils & Albert Libchaber, PLoS One, 4(6): e5773 (3rd June 2009) DOI:10.1371/journal.pone.0005773
[6] Encoding Multiple Unnatural Amino Acids Via Evolution Of A Quadruplet Decoding Ribosome by Heinz Neumann, Kaihang Wang, Lloyd Davis, Maria Garcia-Alai & Jason W. Chin, Nature, 464: 441-444 (18th March 2010)
[7] Evolution And Multilevel Optimisation Of The Genetic Code by Tobias Bollenbach, Kalin Vetsigian & Roy Kishony, Genome Research (Cold Spring Harbour Press), 17: 401-404 (2007)
[8] Evolution Of Amino Acid Frequencies In Proteins Over Deep Time: Inferred Order Of Introduction of Amino Acids Into The Genetic Code by Dawn J. Brooks, Jacques R. Fresco, Arthur M. Lesk & Mona Singh, Molecular & Biological Evolution, 19(10):1645-1655 (2002)
[9] Evolution Of The Aminoacyl-tRNA Synthetases And The Origin Of The Genetic Code by R. Wetzel, Journal of Molecular Evolution, 40: 545-550 (1995)
[10] Evolution Of The Genetic Code: Partial Optimization Of A Random Code For Robustness To Translation Error In A Rugged Fitness Landscape by Artem S Novozhilov, Yuri I Wolf and Eugene V Koonin, Biology Direect, 2: 24 (23rd October 2007) DOI:10.1186/1745-6150-2-24
[11] Exceptional Error Minimization In Putative Primordial Genetic Codes by Artem S Novozhilov & Eugene V. Koonin, Biology direct, 4(1): 44 (2009)
[12] Expanding The Genetic Code Of Escherichia coli by Lei Wang, Angsar Brock, Brad Herberich & Peter G. Schultz, Science, 292: 498-500 (20th April 2001)
[13] Experimental Rugged Fitness Landscape In Protein Sequence Space by Yuuki Hayashi, Takuyo Aita, Hitoshi Toyota, Yuzuru Husimi, Itaru Urabe & Tetsuya Yomo, PLoS One, 1(1): e96 (2006) DOI:10.1371/journal.pone.0000096
[14] Importance Of Compartment Formation For A Self-Encoding System by Tomoaki Matsuura, Muneyoshi Yamaguchi, Elizabeth P. Ko-Mitamura, Yasufumi Shima, Itaru Urabe & Tetsuya Yomo, Proceedings of the National Academy of Sciences of the USA, 99(11): 7514-7517 (28th May 2002)
[15] On The Origin Of The Genetic Code: Signatures Of Its Primordial Complementarity In tRNAs And Aaminoacyl-tRNA Synthetases by S. N. Rodin and A. S. Rodin, Heredity, 100: 341-355 (5th March 2008)
[16] Origin And Evolution Of The Genetic Code: The Universal Enigma by Eugene V. Koonin & Artem S. Novozhilov, IUBMB Life, 61(2): 99-111 (February 2009) (Also available at arXiv)
[17] Protein Evolution With An Expanded Genetic Code by Chang C. Liu, Antha V. Mack, Meng-Lin Tsao, Jeremy H. Mills, Hyun Soo Lee, Hyeryun Choe, Michael Farzan, Peter G. Schultz & Vaughn V. Smider, Proceedings of the National Academy of Sciences of the USA, 105(46): 17688-17693 (18th November 2008)
[18] Protein Stability Promotes Evolvability by Jesse D. Bloom, Sy T. Labthavikul, Christopher R. Otey & Frances H. Arnold, Proceedings of the National Academy of Sciences of the USA, 103(15): 5869-5874 (11th April 2006)
[19] Reassigning Cysteine In The Genetic Code Of Escherichia coli by Volker Döring and Philippe Marlière, Genetics, 150: 543-551 (October 1998)
[20] Recent Evidence For Evolution Of The Genetic Code by Syozo Osawa, Thomas H, Jukes, Kimitsuna Watanabe & Akira Muto, Microbiological Reviews, 56(1): 229-264 (March 1992)
[21] Rewiring The Keyboard: Evolvability Of The Genetic Code by Robin D. Knight, Stephen J. Freeland & Laura F. Landweber, Nature Reviews Genetics, 2: 41-58 (January 2001)
[22] Thawing The Frozen Accident by C. W. Carter Jr., Heredity, 100: 339-340 (13th February 2008)
[23] A Simple Model Based On Mutation And Selection Explains Trends In Codon And Amino-Acid Usage And GC Composition Within And Across Genomes by Robin D. Knight, Stephen J. Freeland & Laura F. Landweber, Genome Biology, 2(4): research0010.1–0010.13 (22nd March 2001)