''Parduczia'' is a genus of
karyorelict ciliates
The ciliates are a group of alveolates characterized by the presence of hair-like organelles called cilia, which are identical in structure to flagellum, eukaryotic flagella, but are in general shorter and present in much larger numbers, with a ...
in the family Geleiidae.
''Parduczia'' species are filiform to serpentiform ciliates characterized by their giant size (1200 to 2500 µm on average) and their very long buccal split.
The genus name is a
taxonomic patronym honoring the protistologist Béla Párducz (1911–1964).
Systematics
Five species are currently described in the genus ''Parduczia''.
* ''
Parduczia arcachonense
''Parduczia'' is a genus of karyorelict ciliates in the family Geleiidae.
''Parduczia'' species are filiform to serpentiform ciliates characterized by their giant size (1200 to 2500 µm on average) and their very long buccal split.
The genus ...
''
(Nouzarède, 1965) Dragesco, 1999
* ''
Parduczia filiformis
''Parduczia'' is a genus of karyorelict ciliates in the family Geleiidae.
''Parduczia'' species are filiform to serpentiform ciliates characterized by their giant size (1200 to 2500 µm on average) and their very long buccal split.
The genus ...
''
(Nouzarède, 1977) Dragesco, 1999
* ''
Parduczia martinicense
''Parduczia'' is a genus of karyorelict ciliates in the family Geleiidae.
''Parduczia'' species are filiform to serpentiform ciliates characterized by their giant size (1200 to 2500 µm on average) and their very long buccal split.
The genus ...
''
(Nouzarède, 1977) Dragesco, 1999
* ''
Parduczia murmanica
''Parduczia'' is a genus of karyorelict ciliates in the family Geleiidae.
''Parduczia'' species are filiform to serpentiform ciliates characterized by their giant size (1200 to 2500 µm on average) and their very long buccal split.
The genus ...
''
(Raikov, 1962) Dragesco, 1999
* ''
Parduczia orbis
''Parduczia'' is a genus of karyorelict ciliates in the family Geleiidae.
''Parduczia'' species are filiform to serpentiform ciliates characterized by their giant size (1200 to 2500 µm on average) and their very long buccal split.
The genus ...
''
(Fauré-Fremiet, 1950) Dragesco, 1999 is the type species of the genus.
Phylogeny
Comparison and
phylogenetic analysis
In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups o ...
of
18S rRNA 18S may refer to:
*18S ribosomal RNA
*18S rRNA (adenine1779-N6/adenine1780-N6)-dimethyltransferase
*18SEH
The Family II is a straight-4 piston engine that was originally developed by Opel in the 1970s, debuting in 1979. Available in a wide ran ...
sequences showed that ''Parduczia orbis'' is the
sister group
In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree.
Definition
The expression is most easily illustrated by a cladogram:
Taxon A and t ...
to ''
Corlissina maricaensis''. In turn, these two genera form a
clade
A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, ...
with ''
Geleia
''Geleia'' is a genus of karyorelict ciliates in the family Geleiidae.
The genus name is a taxonomic patronym honoring the Hungarian protistologist József von Gelei (1885-1952).
Systematics
17 species are currently described in the genus ...
''.
Alternative genetic code
An alternative
genetic code
The genetic code is the set of rules used by living cells to translate information encoded within genetic material ( DNA or RNA sequences of nucleotide triplets, or codons) into proteins. Translation is accomplished by the ribosome, which links ...
is used by the
nuclear genome
Nuclear DNA (nDNA), or nuclear deoxyribonucleic acid, is the DNA contained within each cell nucleus of a eukaryotic organism. It encodes for the majority of the genome in eukaryotes, with mitochondrial DNA and plastid DNA coding for the rest. It ...
of ''Parduczia'' sp.
This code corresponds to the
translation table 27 and involves the unusual reassignment of the three standard termination codons to sense codons:
Notes
References
{{Taxonbar, from=Q89577854
Ciliate genera
Karyorelictea
Taxa described in 1999