Genomic Relationship of Five Species of the Genus Chromatium by Analysis of Large Restriction Fragments (Macrorestriction Analysis) Using Pulsed-Field Gel Electrophoresis

V. PAVÓN, N. GAJU

*↵ Corresponding author. Mailing address: Institute for Fundamental Biology and Department of Genetics and Microbiology, Autonomous University of Barcelona, 08193 Bellaterra, Spain. Phone: 34-3-581 12 78. Fax: 34-3-581 20 11. E-mail: ibfn0{at}cc.uab.es.

International Journal of Systematic Bacteriology 1997; 47(2):586–589 · https://doi.org/10.1099/00207713-47-2-586

Abstract

Large restriction fragment (macrorestriction) patterns resolved by pulsed-field gel electrophoresis (PFGE) were used to calculate the genomic similarity within and among five members of the genus Chromatium with closely related phenotypes: C. minutissimum, C. vinosum, C. gracile, C. salexigens, and C. tepidum. PFGE allowed the study of the genomic organizations of these organisms. The results reveal a high level of homogeneity among the strains of C. vinosum analyzed. Moreover, there seems to be a close genetic relationship between C. vinosum and C. minutissimum.