Macroalgal deep genomics illuminate multiple paths to aquatic,photosynthetic multicellularity  

作　　者：David R.Nelson Alexandra Mystikou Ashish Jaiswal Cecilia Rad-Menendez Michael J.Preston Frederik De Boever Diana C.El Assal Sarah Daakour Michael W.Lomas Jean-Claude Twizere David H.Green William C.Ratcliff Kourosh Salehi-Ashtiani 

机构地区：[1]Division of Science and Math,New York University Abu Dhabi,Abu Dhabi,UAE [2]Center for Genomics and Systems Biology(CGSB),New York University Abu Dhabi,Abu Dhabi,UAE [3]Biotechnology Research Center,Technology Innovation Institute,PO Box 9639,Masdar City,Abu Dhabi,UAE [4]Culture Collection of Algae and Protozoa,Scottish Association for Marine Science,Oban,Scotland,UK [5]National Center for Marine Algae and Microbiota,Bigelow Laboratory for Ocean Sciences,East Boothbay,ME,USA [6]Laboratory of Viral Interactomes,GIGA Institute,University of Liege,Liege,Belgium [7]School of Biological Sciences,Georgia Institute of Technology,Atlanta,GA,USA

出　　处：《Molecular Plant》2024年第5期747-771,共25页分子植物（英文版）

基　　金：supported by NYUAD Faculty Research Funds(AD060);Tamkeen under the NYU Abu Dhabi Research Institute Award to the NYUAD Center for Genomics and Systems Biology(7371210 CGSB9)。

摘　　要：Macroalgae are multicellular,aquatic autotrophs that play vital roles in global climate maintenance and have diverse applications in biotechnology and eco-engineering,which are directly linked to their multicellularity phenotypes.However,their genomic diversity and the evolutionary mechanisms underlying multicellularity in these organisms remain uncharacterized.In this study,we sequenced 110 macroalgal genomes from diverse climates and phyla,and identified key genomic features that distinguish them from their microalgal relatives.Genes for cell adhesion,extracellular matrix formation,cell polarity,transport,and cell differentiation distinguish macroalgae from microalgae across all three major phyla,constituting conserved and unique gene sets supporting multicellular processes.Adhesome genes show phylum-and climate-specific expansions that may facilitate niche adaptation.Collectively,our study reveals genetic determinants of convergent and divergent evolutionary trajectories that have shaped morphological diversity in macroalgae and provides genome-wide frameworks to understand photosynthetic multicellular evolution in aquatic environments.

关 键 词：MACROALGAE MULTICELLULARITY comparative genomics evolution adhesome endogenous viral elements 

分 类 号：Q94[生物学—植物学]