Green Evolution and Dynamic Adaptations Revealed by Genomes of the Marine Picoeukaryotes Micromonas

被引：495

作者：

Worden, Alexandra Z. ^{[1
]}

Lee, Jae-Hyeok ^{[2
]}

Mock, Thomas ^{[3
]}

Rouze, Pierre ^{[4
,5
]}

Simmons, Melinda P. ^{[1
]}

Aerts, Andrea L. ^{[6
]}

Allen, Andrew E. ^{[7
]}

Cuvelier, Marie L. ^{[1
,8
]}

Derelle, Evelyne ^{[9
]}

Everett, Meredith V. ^{[8
]}

Foulon, Elodie ^{[10
]}

Grimwood, Jane ^{[6
,11
]}

Gundlach, Heidrun ^{[12
]}

Henrissat, Bernard ^{[13
,14
]}

Napoli, Carolyn ^{[15
]}

McDonald, Sarah M. ^{[1
]}

Parker, Micaela S. ^{[3
]}

Rombauts, Stephane ^{[4
,5
]}

Salamov, Aasf ^{[6
]}

Von Dassow, Peter ^{[10
]}

Badger, Jonathan H. ^{[7
]}

Coutinho, Pedro M. ^{[12
]}

Demir, Elif ^{[1
]}

Dubchak, Inna ^{[6
]}

Gentemann, Chelle ^{[16
]}

Eikrem, Wenche ^{[17
]}

Gready, Jill E. ^{[18
]}

John, Uwe ^{[19
]}

Lanier, William ^{[20
]}

Lindquist, Erika A. ^{[6
]}

Lucas, Susan ^{[6
]}

Mayer, Klaus F. X. ^{[11
]}

Moreau, Herve

Not, Fabrice ^{[10
]}

Otillar, Robert ^{[6
]}

Panaud, Olivier ^{[21
]}

Pangilinan, Jasmyn ^{[6
]}

Paulsen, Ian ^{[22
]}

Piegu, Benoit ^{[21
]}

Poliakov, Aaron ^{[6
]}

Robbens, Steven ^{[4
,5
]}

Schmutz, Jeremy ^{[6
,11
]}

Toulza, Eve ^{[23
]}

Wyss, Tania ^{[24
]}

Zelensky, Alexander ^{[25
]}

Zhou, Kemin ^{[6
]}

Armbrust, E. Virginia ^{[3
]}

Bhattacharya, Debashish ^{[20
]}

Goodenough, Ursula W. ^{[2
]}

Van de Peer, Yves ^{[4
,5
]}

机构：

[1] Monterey Bay Aquarium Res Inst, Moss Landing, CA 95039 USA

[2] Washington Univ, Dept Biol, St Louis, MO 63130 USA

[3] Univ Washington, Sch Oceanog, Seattle, WA 98195 USA

[4] Univ Ghent, Dept Plant Syst Biol, Flanders Inst Biotechnol VIB, B-9052 Ghent, Belgium

[5] Univ Ghent, Dept Mol Genet, B-9052 Ghent, Belgium

[6] US DOE, JGI, Walnut Creek, CA 94598 USA

[7] J Craig Venter Inst, San Diego, CA 92121 USA

[8] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Miami, FL 33149 USA

[9] Univ Paris 06, CNRS, Observ Oceanol, F-66651 Banyuls Sur Mer, France

[10] Univ Paris 06, CNRS, Stn Biol Roscoff, Roscoff, France

[11] Stanford Univ, Sch Med, Stanford Human Genome Ctr, Palo Alto, CA 94304 USA

[12] German Res Ctr Environm Hlth, Inst Bioinformat & Syst Biol, D-85764 Neuherberg, Germany

[13] Univ Aix Marseille 1, F-13288 Marseille, France

[14] Univ Aix Marseille 2, F-13288 Marseille, France

[15] Univ Arizona, Inst Biol, Tucson, AZ 85719 USA

[16] Remote Sensing Syst, Santa Rosa, CA 95401 USA

[17] Univ Oslo, N-0316 Oslo, Norway

[18] Australian Natl Univ, Coll Med Biol & Environm, Div Mol Biosci, Canberra, ACT 2601, Australia

[19] Alfred Wegener Inst Polar & Marine Res, D-27570 Bremerhaven, Germany

[20] Univ Iowa, Dept Biol, Iowa City, IA 52242 USA

[21] Univ Perpignan, Lab Genome & Dev Plantes, F-66860 Perpignan, France

[22] Macquarie Univ, Dept Chem & Biomol Sci, N Ryde, NSW 2109, Australia

[23] Univ Montpellier 2, F-34095 Montpellier 05, France

[24] Univ Miami, Dept Biol, Miami, FL 33149 USA

[25] Erasmus MC, Dept Genet, NL-3015 CE Rotterdam, Netherlands

来源：

SCIENCE | 2009年 / 324卷 / 5924期

基金：

美国国家科学基金会;

关键词：

GENE-EXPRESSION; LAND PLANTS; ALGAE; CHLAMYDOMONAS; ENDOSYMBIOSIS; RIBOSWITCHES; PERSPECTIVE; METABOLISM; PROVIDES; ORIGIN;

D O I：

10.1126/science.1167222

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Picoeukaryotes are a taxonomically diverse group of organisms less than 2 micrometers in diameter. Photosynthetic marine picoeukaryotes in the genus Micromonas thrive in ecosystems ranging from tropical to polar and could serve as sentinel organisms for biogeochemical fluxes of modern oceans during climate change. These broadly distributed primary producers belong to an anciently diverged sister clade to land plants. Although Micromonas isolates have high 18S ribosomal RNA gene identity, we found that genomes from two isolates shared only 90% of their predicted genes. Their independent evolutionary paths were emphasized by distinct riboswitch arrangements as well as the discovery of intronic repeat elements in one isolate, and in metagenomic data, but not in other genomes. Divergence appears to have been facilitated by selection and acquisition processes that actively shape the repertoire of genes that are mutually exclusive between the two isolates differently than the core genes. Analyses of the Micromonas genomes offer valuable insights into ecological differentiation and the dynamic nature of early plant evolution.

引用

页码：268 / 272

页数：5

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