New insights and investigation:Morphomolecular notes on the infraciliature,taxonomy,and systematics of pleurostomatid ciliates(Protozoa,Ciliophora),with establishment of a new suborder,two new genera,and three new species  

作　　者：Gong-Ao-Te Zhang Teng-Yue Zhang Yong Chi Hong-Bo Pan Zhe Zhang Jia-Chen Zhang Jun-Hua Niu Hong-Gang Ma Khaled A.S.Al-Rasheid Alan Warren Wei-Bo Song 

机构地区：[1]Institute of Evolution&Marine Biodiversity and MOE Key Laboratory of Evolution&Marine Biodiversity,Ocean University of China,Qingdao,Shandong 266003,China [2]Laboratory for Marine Biology and Biotechnology,Qingdao Marine Science and Technology Center,Qingdao,Shandong 266237,China [3]Key Laboratory of Zoological Systematics and Application,College of Life Sciences,Hebei University,Baoding,Hebei 071002,China [4]Shanghai Universities Key Laboratory of Marine Animal Taxonomy and Evolution,Shanghai Ocean University,Shanghai 201306,China [5]Zoology Department,College of Science,King Saud University,Riyadh 11451,Saudi Arabia [6]Department of Life Sciences,Natural History Museum,London SW75BD,UK

出　　处：《Zoological Research》2024年第6期1327-1346,共20页动物学研究（英文）

基　　金：supported by the National Natural Science Foundation of China(32030015,32170533);Researchers Supporting Project Number(RSP2024R10)King Saud University,Riyadh,Saudi Arabia。

摘　　要：Pleurostomatid ciliates,as a highly diverse and widely distributed unicellular eukaryote group,play a crucial role in the cycling of nutrients and energy in microbial food webs.However,research on pleurostomatids remains insufficient,resulting in a paucity of molecular information and substantial gaps in knowledge of their phylogenetic relationships.In recent years,we investigated pleurostomatid diversity in various Chinese habitats,including their systematic relationships and taxonomic circumscriptions,which were comprehensively analyzed using an integrative morphomolecular approach.Results revealed that:(1)pleurostomatids can be categorized into two suborders,Protolitonotina subord.nov.and Amphileptina Jankowski,1967;(2)Protolitonotina subord.nov.represents the ancestral pleurostomatid group and includes two genera,Protolitonotus and Heterolitonotus gen.nov.,characterized by right kineties progressively shortened along rightmost full kineties and absence of a left dorsolateral kinety;(3)Heterolitonotus gen.nov.represents an orphan lineage and is defined by an oral slit extending to its dorsal margin;(4)“Protolitonotus clampi”does not group with congeners but instead represents an orphan lineage,thus Novilitonotus gen.nov.is established to which P.clampi is transferred as Novilitonotus clampi comb.nov.;(5)three new species,Apoamphileptus paraclaparedii sp.nov.,Heterolitonotus rex gen.nov.,sp.nov.,and Loxophyllum apohelus sp.nov.,are described;and(6)helices 21es6a to 21es6d within the V4 region of small subunit ribosomal RNA(SSU rRNA)may serve as a useful tool for discriminating pleurostomatids.The evolutionary relationships among all main lineages of pleurostomatids are discussed and a key to the identification of pleurostomatid genera is provided.

关 键 词：CILIATES Integrative approaches New suborder Phylogeny Pleurostomatids 

分 类 号：Q959.11[生物学—动物学]