Pyropia yezoensis genome reveals diverse mechanisms of carbon acquisition in the intertidal environment
文献类型： 外文期刊
作者： Wang, Dongmei 1 ; Yu, Xinzi 1 ; Xu, Kuipeng 1 ; Bi, Guiqi 1 ; Cao, Min 1 ; Zelzion, Ehud 3 ; Fu, Chunxiang 4 ; Sun, Peipe 1 ;
作者机构： 1.Minist Educ, Key Lab Marine Genet & Breeding OUC, Qingdao 266100, Peoples R China
2.Ocean Univ China, Coll Marine Life Sci, Qingdao 266100, Peoples R China
3.Rutgers State Univ, Dept Biochem & Microbiol, New Brunswick, NJ 08901 USA
4.Chinese Acad Sci, Qingdao Inst BioEnergy & Bioproc Technol, Shandong Prov Key Lab Energy Genet, Key Lab Biofuels, Qingdao 266101, Peoples R China
5.Ocean Univ China, Key Lab Marine Environm & Ecol, Minist Educ, Qingdao 266100, Peoples R China
6.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Minist Agr & Rural Affairs, Key Lab Maricultural Organism Dis Control, Qingdao 266071, Peoples R China
7.Hainan Trop Ocean Univ, Key Lab Utilizat & Conservat Trop Marine Bioresou, Minist Educ, Sanya 572022, Peoples R China
8.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China
期刊名称：NATURE COMMUNICATIONS （ 影响因子：14.919； 五年影响因子：15.805 ）
ISSN： 2041-1723
年卷期： 2020 年 11 卷 1 期
页码：
收录情况： SCI
摘要： Changes in atmospheric CO2 concentration have played a central role in algal and plant adaptation and evolution. The commercially important red algal genus, Pyropia (Bangiales) appears to have responded to inorganic carbon (C-i) availability by evolving alternating heteromorphic generations that occupy distinct habitats. The leafy gametophyte inhabits the intertidal zone that undergoes frequent emersion, whereas the sporophyte conchocelis bores into mollusk shells. Here, we analyze a high-quality genome assembly of Pyropia yezoensis to elucidate the interplay between C-i availability and life cycle evolution. We find horizontal gene transfers from bacteria and expansion of gene families (e.g. carbonic anhydrase, anti-oxidative related genes), many of which show gametophyte-specific expression or significant up-regulation in gametophyte in response to dehydration. In conchocelis, the release of HCO3- from shell promoted by carbonic anhydrase provides a source of C-i. This hypothesis is supported by the incorporation of C-13 isotope by conchocelis when co-cultured with C-13-labeled CaCO3. The nori producing seaweed Pyropia yezoensis has heteromorphic generations that occupy distinct habitats. Here, via genome assembly, transcriptome analysis, and 13C isotope labeling, the authors show the interplay between inorganic carbon availability and life cycle evolution in the intertidal environment.
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