Divergence of Genomic Sequences between Lactococcus lactis subsp. lactis and Lactococcus lactis subsp. cremoris
AUTOR(ES)
Godon, Jean-Jacques
RESUMO
Relatedness between Lactococcus lactis subsp. cremoris and L. lactis subsp. lactis was assessed by Southern hybridization analysis, with cloned chromosomal genes as probes. The results indicate that strains of the two subspecies form two distinct groups and that the DNA sequence divergence between L. lactis subsp. lactis and L. lactis subsp. cremoris is estimated to be between 20 and 30%. The previously used phenotypic criteria do not fully discriminate between the groups; therefore, we propose a new classification which is based on DNA homology. In agreement with this revised classification, the L. lactis subsp. lactis and L. lactis subsp. cremoris strains from our collection have distinct phage sensitivities.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=183224Documentos Relacionados
- PCR Amplification of the Gene acmA Differentiates Lactococcus lactis subsp. lactis and L. lactis subsp. cremoris
- Thermosensitive plasmid replication, temperature-sensitive host growth, and chromosomal plasmid integration conferred by Lactococcus lactis subsp. cremoris lactose plasmids in Lactococcus lactis subsp. lactis.
- Mechanism of Proteinase Release from Lactococcus lactis subsp. cremoris Wg2
- Inactivation of the Glutamate Decarboxylase Gene in Lactococcus lactis subsp. cremoris
- pAMβ1-Associated Mobilization of Proteinase Plasmids from Lactococcus lactis subsp. lactis UC317 and L. lactis subsp. cremoris UC205