Phylogenomic analyses shed light on the relationships of chiton superfamilies and shell‑eye evolution
作者机构：Key Laboratory of Evolution&Marine Biodiversity(Ministry of Education)and Institute of Evolution&Marine BiodiversityOcean University of ChinaQingdao 266003China Laoshan LaboratoryQingdao 266237China Department of Marine ZoologySenckenberg Research Institute and Natural History Museum Frankfurt60325 Frankfurt Am MainGermany
出 版 物：《Marine Life Science & Technology》 (海洋生命科学与技术（英文）)
年 卷 期：2023年第5卷第4期
页 面：525-537页
核心收录：
学科分类：0710[理学-生物学] 07[理学] 08[工学] 09[农学] 071007[理学-遗传学] 0901[农学-作物学] 0836[工学-生物工程] 071002[理学-动物学] 090102[农学-作物遗传育种]
基 金：supported by the Fundamental Research Funds for the Central Universities(202241002 and 202172002) Science and Technology Innovation Project of Laoshan Laboratory(No.LSKJ202203104) the Young Taishan Scholars Program of Shandong Province(tsqn202103036)
主 题：Chiton Mollusca Phylogenomics Polyplacophora Shell eyes
摘 要：Mollusca is the second-largest animal phylum with over 100,000 extant species representing eight *** 1000 extant species in the class Polyplacophora,chitons have a relatively constrained morphology but with some notable *** genera possess“shell eyes,i.e.,true eyes with a lens and retina that are embedded within the dorsal *** phylogeny of the major chiton clades is mostly well established,in a set of superfamily-level and higher level taxa supported by various approaches,including morphological studies,multiple gene markers,mitogenome-phylogeny,and phylotranscriptomic ***,one critical lineage has remained unclear,namely Schizochiton which was controversially suggested as being the potential independent origin of chiton shell ***,with the draft genome sequencing of Schizochiton incisus(superfamily Schizochitonoidea)plus assemblies of transcriptome data from other polyplacophorans,we present phylogenetic reconstructions using both mitochondrial genomes and phylogenomic approaches with multiple *** found that phylogenetic trees from mitogenomic data are inconsistent,reflecting larger scale confounding factors in molluscan ***,a consistent and robust topology was generated with protein-coding genes using different models and *** results support Schizochitonoidea as the sister group to other Chitonoidea in Chitonina,in agreement with the established classifi*** with evidence from fossils,our phylogenetic results suggest that the earliest origin of shell eyes is in Schizochitonoidea,and that these structures were also gained secondarily in other genera in *** results have generated a holistic review of the internal relationship within Polyplacophora,and a better understanding of the evolution of Polyplacophora.
维普期刊数据库