Myoglobin Evolution

Cross references:    Globin   Heme      Myoglobin   
Red Nucleus     Red Nucleus Evolution    
Extrapyramidal System    Fast vs. Slow Twitch Muscles   

Searching Google for "myoglobin evolution" yielded 257,000 claimed hits. 

Evolution of myoglobin (Goog) - 1998  
Only abstract available online for free. 
The distribution, physiological function, amino acid sequence and gene structure of myoglobin and myoglobin-like proteins from various taxa are summarized, and their evolution is discussed. Although it has long been thought that all haemoglobins and myoglobins have evolved from a common ancestral gene, the knowledge presently accumulated about the structures of these proteins suggests that there may be three distinct origins: a 'universal globin', a 'compact globin' and an 'IDO-like globin'."  
My comment
    Although the abstract doesn't say much, there are 5 related citations and 14 Cited by's. 

    Related citations: 
1.  n/a 
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5.  Structure-function relationships in unusual nonverterbrate globulins          
    which had one interesting citation: 
A phylogenomic profile of globins   
    Full length HTML for free: 
    See:  Globin