Soltis, D E <br/><br/>
Chloroplast gene sequence data suggest a single origin of the predisposition for symbiotic nitrogen fixation in angiosperms.  [electronic resource] 

 -  Proceedings of the National Academy of Sciences of the United States of America  Mar 1995 
 - 2647-51 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article; Research Support, U.S. Gov't, Non-P.H.S. 
<br/><br/><label>ISSN: </label>0027-8424 
<br/><br/><label>Standard No.: </label>10.1073/pnas.92.7.2647  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Base Sequence<br/>Chloroplasts--metabolism<br/>Consensus Sequence<br/>Genes, Plant<br/>Gram-Positive Bacteria--physiology<br/>Molecular Sequence Data<br/>Nitrogen Fixation--genetics<br/>Phylogeny<br/>Plants--classification<br/>Rhizobium--physiology<br/>Ribulose-Bisphosphate Carboxylase--genetics<br/>Sequence Homology, Nucleic Acid<br/>Symbiosis<br/>Trees--classification