Dominance of transposable element‑related satDNAs results in great complexity of“satDNA library”and invokes the extension towards“repetitive DNA library”

作     者：Monika Tunjić‑Cvitanić Daniel García‑Souto Juan J.Pasantes EvaŠatović‑Vukšić 

作者机构：Division of Molecular BiologyRuđer BoškovićInstitute10000 ZagrebCroatia Genomes and DiseaseCentre for Research in Molecular Medicine and Chronic Diseases(CIMUS)Universidade de Santiago de Compostela15706 Santiago de CompostelaSpain Department of ZoologyGenetics and Physical AnthropologyUniversidade de Santiago de Compostela15706 Santiago de CompostelaSpain Centro de Investigación MariñaDpto de BioquímicaXenética e InmunoloxíaUniversidade de Vigo36310 VigoSpain 

出 版 物：《Marine Life Science & Technology》 (海洋生命科学与技术（英文）)

年 卷 期：2024年第6卷第2期

页      面：236-251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] 090102[农学-作物遗传育种] 

基　　金：supported by:the Croatian Science Foundation,grant number IP-2019-045522 Xunta de Galicia(ED431C 2020/05)and the European Union(Euro-pean Regional Development Fund-ERDF) Xunta de Galicia(Centro singular de investigación de Galicia,accreditation 2019-2022)and the European Union(European Regional Development Fund-ERDF) financially supported by Xunta de Galicia,a postdoctoral contract ED481B/2018/091 

主　　题：Satellitome Comparative satellitomics Helitron Bivalves “Dark matter of the genome” 

摘      要：Research on bivalves is fast-growing,including genome-wide analyses and genome *** characteristics qualify oysters as a valuable model to explore repetitive DNA sequences and their genome *** we char-acterize the satellitomes of five species in the family Ostreidae(Crassostrea angulata,***,***,***,Ostrea edulis),revealing a substantial number of satellite DNAs(satDNAs)per genome(ranging between 33 and 61)and peculiarities in the composition of their *** satDNAs were either associated to or derived from transposable elements,displaying a scarcity of transposable element-unrelated satDNAs in these *** to the non-conventional satellitome constitution and dominance of Helitron-associated satDNAs,comparative satellitomics demanded more in-depth analyses than standardly *** analyses(including ***,the first bivalve species with a defined satellitome)revealed that 13 satDNAs occur in all six oyster genomes,with Cg170/HindIII satDNA being the most abundant in all of *** the“satDNA library modelhighlighted the necessity to adjust this term when studying tandem repeat evolution in organisms with such *** repetitive sequences with potential variation in the organizational form and repeat-type affiliation are examined across related species,the introduction of the terms“TE libraryand“repetitive DNA librarybecomes essential.