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Journal of Bacteriology, September 2007, p. 6474-6476, Vol. 189, No. 17
0021-9193/07/$08.00+0     doi:10.1128/JB.00384-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

DNA Diversification in Two Sinorhizobium Species{triangledown} ,{dagger}

Xianwu Guo, Margarita Flores, Lucía Morales, Delfino García, Patricia Bustos, Víctor González, Rafael Palacios, and Guillermo Dávila*

Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México

Received 14 March 2007/ Accepted 18 June 2007

The comparative analysis of genomic characteristics and single-nucleotide polymorphism patterns from large fragments borne on different replicons of Sinorhizobium spp. genomes clearly demonstrate that DNA recombination among closely related bacteria is a major event in the diversification of this genome, especially in pSymA, resulting in mosaic structure.

* Corresponding author. Mailing address: Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Ap. Postal 565-A, Cuernavaca, Morelos, México. Phone: (73) 133881. Fax: (73) 116710. E-mail: davila{at}ccg.unam.mx

{triangledown} Published ahead of print on 29 June 2007.

{dagger} Supplemental material for this article may be found at http://jb.asm.org/.

Journal of Bacteriology, September 2007, p. 6474-6476, Vol. 189, No. 17
0021-9193/07/$08.00+0     doi:10.1128/JB.00384-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.





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