Morphology, morphogenesis and molecular phylogeny of an oxytrichid ciliate, Rubrioxytricha haematoplasma (Blatterer & Foissner, 1990) Berger, 1999 (Ciliophora, Hypotricha)
Chen, Wenping and Chen, Xumiao and Li, Lifang and Warren, Alan and Lin, Xiaofeng,, 65, 309-320 (2015),
doi = https://doi.org/10.1099/ijs.0.067801-0,
publicationName = Microbiology Society,
issn = 1466-5026,
abstract= The morphology and morphogenesis of an oxytrichid ciliate, Rubrioxytricha haematoplasma (Blatterer & Foissner, 1990) Berger, 1999, collected from brackish and marine waters in China, were investigated using live observation and the protargol staining method. The main features of the morphogenetic process are: (i) the parental adoral zone of membranelles is retained completely in the proter and the anlage of undulating membranes originates from dedifferentiation of the old structures; (ii) three frontal, four frontoventral, one buccal, five ventral and five transverse cirri are derived from the anlagen of the undulating membranes and the five streaks of frontal-ventral-transverse anlagen in the pattern of 1 : 3 : 3 : 3 : 4 : 4 from left to right; (iii) the morphogenesis of the dorsal kineties is simpler than the Oxytricha pattern, i.e. without fragmentation of the dorsal kinety 3 anlagen; (iv) the single caudal cirrus originates from the dorsal kinety 3 anlage on the right side; (v) the two macronuclear nodules fuse into a single mass during the mid-stage of morphogenesis. These features correspond well with Rubrioxytricha indica, indicating that the morphogenetic pattern of Rubrioxytricha is stable. Phylogenetic analysis based on small-subunit rRNA gene sequence data supports the monophyly of the genus Rubrioxytricha, which is nested within the non-Stylonychinae clade.,
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