''Waddlia'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

bacteria Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among ...

in its own family, Waddliaceae. Species in this genus have a '' Chlamydia''-like cycle of replication and their

ribosomal RNA Ribosomal ribonucleic acid (rRNA) is a type of non-coding RNA which is the primary component of ribosomes, essential to all cells. rRNA is a ribozyme which carries out protein synthesis in ribosomes. Ribosomal RNA is transcribed from ribosomal ...

genes are 80–90% identical to

ribosomal genes Ribosomal DNA (rDNA) is a DNA sequence that codes for ribosomal RNA. These sequences regulate transcription initiation and amplification, and contain both transcribed and non-transcribed spacer segments. In the human genome there are 5 chromos ...

in the

Chlamydiaceae The Chlamydiaceae are a family of gram-negative bacteria that belongs to the phylum Chlamydiota, order Chlamydiales. Chlamydiaceae species express the family-specific lipopolysaccharide epitope αKdo-(2→8)-αKdo-(2→4)-αKdo (previously call ...

. The type species is ''Waddlia chondrophila'' strain WSU 86-1044T, which was isolated from the tissues of a first-trimester aborted bovine

fetus A fetus or foetus (; plural fetuses, feti, foetuses, or foeti) is the unborn offspring that develops from an animal embryo. Following embryonic development the fetal stage of development takes place. In human prenatal development, fetal deve ...

. Isolated in 1986, this species was originally characterized as a ''

Rickettsia ''Rickettsia'' is a genus of nonmotile, gram-negative, nonspore-forming, highly pleomorphic bacteria that may occur in the forms of cocci (0.1 μm in diameter), bacilli (1–4 μm long), or threads (up to about 10 μm long). The term "rickett ...

''.

DNA sequencing DNA sequencing is the process of determining the nucleic acid sequence – the order of nucleotides in DNA. It includes any method or technology that is used to determine the order of the four bases: adenine, guanine, cytosine, and thymine. Th ...

of the

corrected the characterization. Another ''W. chondrophila'' strain, 2032/99, was found along with ''

Neospora caninum ''Neospora caninum'' is a coccidian parasite that was identified as a species in 1988. Prior to this, it was misclassified as ''Toxoplasma gondii'' due to structural similarities. The genome sequence of ''Neospora caninum'' has been determined by ...

'' in a septic stillborn calf. ''Waddlia chondrophila'' may be linked to miscarriages in pregnant women. A study found ''Waddlia chondrophila'' present in the placenta and vagina of 32 women, 10 of which who had miscarriages. It is hypothesized that the bacterial grows in placental cells, damaging the placenta. The species ''Waddlia malaysiensis'' G817 has been proposed. ''W. malaysiensis'' was identified in the urine of Malaysian fruit bats (''

Eonycteris spelaea The cave nectar bat, dawn bat, common dawn bat, common nectar bat or lesser dawn bat (''Eonycteris spelaea'') is a species of megabat within the genus '' Eonycteris''. The scientific name of the species was first published by Dobson in 1871. De ...

'').

References

Chlamydiota Bacteria genera {{Bacteria-stub

See also

References