Taxonomy and regeneration of a newly recorded Polychaete Capitella teleta(Annelida,Capitellidae)in the coastal water of Shandong,China  

作　　者：Qian LI Yongnan LI Yue WANG Xuwen WU Linlin ZHANG 

机构地区：[1]CAS and Shandong Province Key Laboratory of Experimental Marine Biology&Center of Deep Sea Research,Center for Ocean Mega-Science,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China [2]Laboratory for Marine Biology and Biotechnology,Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China [3]University of Chinese Academy of Sciences,Beijing 100049,China [4]Department of Marine Organism Taxonomy&Phylogeny,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China

出　　处：《Journal of Oceanology and Limnology》2022年第1期309-321,共13页海洋湖沼学报（英文）

基　　金：Supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB42000000)to L Z;the National Natural Science Foundation of China(No.41976088)to L Z;the Key Development Project of Centre for Ocean Mega-Research of Science,Chinese academy of science(No.COMS2019R01)to L Z;the Pilot National Laboratory for Marine Science and Technology(No.YJ2019NO01)to L Z。

摘　　要：The polychaete species of Capitella are widely distributed in the China seas,however little is known about Capitella taxonomy,and specimens collected from China have been identifi ed as Capitella capitata(Fabricius,1780)for more than 50 years.C.capitata was considered to be Arctic and subarctic in distribution,therefore the records of C.capitata in the China seas probably represent other species.A taxonomic study based on the samples collected from the northeast coastal water of Shandong Province reveals a diff erent species,Capitella teleta Blake et al.,2009,which is recorded in the China seas for the fi rst time.Morphologically,C.teleta can be easily distinguished from C.capitata by the absence of neuropodial capillaries on chaetigers 8 and 9.The identity of C.teleta is further supported by genetic distance and phylogenetic analyses assessed from mitochondrial cytochrome c oxidase subunit I(COI)gene.In addition,the regeneration feature of C.teleta was studied through whole mount immunohistochemistry and chemical staining.After amputation,the wound of C.teleta was healed within 24 h,forming a signifi cant regeneration blastema by 3 days post amputation(dpa).By 5 dpa,muscle tissues regenerated,nerve fi bers also extended.By 7 dpa,neurites and muscle tissues are both signifi cantly regenerated.Notably,there are more than ten segments regenerated until 16 dpa.As a highly opportunistic species,Capitella teleta is distributed in China,Japan,Korea,North America,and the Mediterranean.It is expected to be an excellent model for studying developmental genetics and evolution of regeneration.

关 键 词：ANNELID Capitella teleta REGENERATION Chinese waters 

分 类 号：Q959[生物学—动物学]