AI Article Synopsis
- The study focuses on a newly identified genus (nov. gen.) and its combination (nov. comb.) found in southern China, revealing important morphological features through living observation and staining techniques.
- Key morphological traits include five frontoventral-transverse cirral anlagen, a dorsomarginal kinety anlage, and a specific arrangement of cirri, leading to the classification of the new genus and improved diagnosis of the combination.
- Phylogenetic analysis shows that the new genus and its combination cluster within the Deviatidae family, characterized by widely spaced cirri, and suggests a close relationship to other similar groups.
Article Abstract
The morphology and morphogenesis of nov. gen. and nov. comb., isolated from southern China, were investigated with living observation and protargol staining. Our population is similar to the original population in living characteristics and ciliary patterns. The main determinable morphogenetic features of nov. comb. are the presence of five frontoventral-transverse cirral anlagen (FVT-anlagen) and a dorsomarginal kinety anlage. According to the origin of FVT-anlagen IV and V in proter, it can be determined that nov. comb. possesses two frontoventral rows and one right marginal row. Hence, a new genus, nov. gen., is proposed, and the diagnosis of nov. comb. is improved. The new genus is diagnosed as follows: adoral zone of membranelles and undulating membranes is in a pattern; there are three enlarged frontal cirri, one buccal cirrus, and one parabuccal cirrus; postperistomial cirrus and transverse cirri are lacking; there are two more or less long frontoventral rows and one right and two or more left marginal rows; cirri within all rows very widely spaced; dorsal kinety pattern is of type, that is, three dorsal kineties and one dorsomarginal kinety; and caudal cirri are present. Phylogenetic analyses based on the small subunit ribosomal (SSU rDNA) sequence data indicate that nov. comb. clusters with and . It is considered that nov. gen. and should be assigned to the family Deviatidae; fine cirri, and cirri within all rows being relatively widely spaced, should be considered as plesiomorphies of Deviatidae; and Deviatidae is closely related to Dorsomarginalia or --
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8669764 | PMC |
| http://dx.doi.org/10.3389/fmicb.2021.777540 | DOI Listing |
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