Complete Genome Sequence of Francisella sp. Strain LA11-2445 (FDC406), a Novel Francisella Species Isolated from a Human Skin Lesion.

Here, we present the 2,139,666-bp circular chromosome of Francisella sp. strain LA11-2445 (FDC406), a proposed novel species of Francisella that was isolated from a human cutaneous lesion and is related to Francisella species from marine environments.

Reorganized Genomic Taxonomy of Francisellaceae Enables Design of Robust Environmental PCR Assays for Detection of Francisella tularensis.

In recent years, an increasing diversity of species has been recognized within the family Francisellaceae. Unfortunately, novel isolates are sometimes misnamed in initial publications or multiple sources propose different nomenclature for genetically highly similar isolates. Thus, unstructured and occasionally incorrect information can lead to confusion in the scientific community. Historically, detection of Francisella tularensis in environmental samples has been challenging due to the considerable and unknown genetic diversity within the family, which can result in false positive results. We have assembled a comprehensive collection of genome sequences representing most known Francisellaceae species/strains and restructured them according to a taxonomy that is based on phylogenetic structure. From this structured dataset, we identified a small number of genomic regions unique to F. tularensis that are putatively suitable for specific detection of this pathogen in environmental samples. We designed and validated specific PCR assays based on these genetic regions that can be used for the detection of F. tularensis in environmental samples, such as water and air filters.

Complete Genome Sequences of Allofrancisella inopinata SYSU YG23 and Allofrancisella frigidaquae SYSU 10HL1970, Isolated from Water from Cooling Systems in China.

Near neighbors to the causative agent of tularemia, Francisella tularensis, isolated from diverse sources, have been reported in recent years. In this announcement, we present the complete sequences of circular chromosomes of one of the closest neighboring genera of Francisella (i.e., the type strains of Allofrancisella inopinata and Allofrancisella frigidaquae).

Complete Genome Sequence of Francisella tularensis subsp. holarctica Strain A271_1 (FDC408), Isolated from a Eurasian Beaver (Castor fiber).

Here, we report the complete genome sequence of Francisella tularensis subsp. holarctica strain A271_1, isolated from a Eurasian beaver (Castor fiber) in 2012 in the Berlin/Brandenburg region, Germany.

Complete Genome Sequence of Francisella halioticida Type Strain DSM 23729 (FSC1005).

Here, we announce the complete genome sequence of the Francisella halioticida type strain DSM 23729 (FSC1005), isolated from a diseased cultured giant abalone in Japan in 2005. The genome is composed of a 2,197,430-bp-long circular chromosome, with a G+C content of 31.2%.