Cryogenian evolution of stigmasteroid biosynthesis

Type Article
Date 2017-09
Language English
Author(s) Hoshino YosukeORCID1, 14, Poshibaeva AleksandraORCID2, Meredith William3, Snape ColinORCID3, Poshibaev Vladimir2, Versteegh Gerard J. M.4, 5, Kuznetsov NikolayORCID2, 6, Leider Arne1, Van Maldegem LennartORCID1, 4, Neumann Mareike1, Naeher SebastianORCID1, 4, 15, Moczydlowska Malgorzata7, Brocks Jochen J.8, Jarrett Amber J. M.8, Tang Qing9, Xiao ShuhaiORCID9, McKirdy David10, Das Supriyo Kumar11, Alvaro Jose Javier12, Sansjofre Pierre13, Hallmann Christian1, 4
Affiliation(s) 1 : Max Planck Inst Biogeochem, Hans Knoell Str 10, D-07745 Jena, Germany.
2 : Gubkin Russian State Univ Oil & Gas, Leninsky Prospekt 65, Moscow, Russia.
3 : Univ Nottingham, Fac Engn, Energy Technol Bldg,Triumph Rd, Nottingham NG7 2TU, England.
4 : Univ Bremen, MARUM Ctr Marine Environm Sci, Leobener Str 8, D-28359 Bremen, Germany.
5 : Helmholtz Zentrum Polar & Meeresforsch, Alfred Wegener Inst, Handelshafen 12, D-27570 Bremerhaven, Germany.
6 : Russian Acad Sci, Geol Inst, Pygevsky 7, Moscow, Russia.
7 : Uppsala Univ, Dept Earth Sci, Villavagen 16, S-75236 Uppsala, Sweden.
8 : Australian Natl Univ, Res Sch Earth Sci, Bldg 142,Mills Rd, Canberra, ACT 2601, Australia.
9 : Virginia Tech, Dept Geosci, Blacksburg, VA 24061 USA.
10 : Univ Adelaide, Dept Earth Sci, Adelaide, SA 5005, Australia.
11 : Presidency Univ, Dept Geol, Coll St 86-1, Kolkata 700073, India.
12 : Univ Complutense Madrid, CSIC, Inst Geoci, Novais 12, E-28040 Madrid, Spain.
13 : Univ Bretagne Occidentale, UMR CNRS 6538, Lab Geosci Ocean, F-29280 Plouzane, France.
14 : Georgia Inst Technol, Sch Biol Sci, 950 Atlantic Dr Northwest, Atlanta, GA 30332 USA.
15 : GNS Sci, 1 Fairway Dr, Lower Hutt 5010, New Zealand.
Source Science Advances (2375-2548) (Amer Assoc Advancement Science), 2017-09 , Vol. 3 , N. 9 , P. e1700887 (8p.)
DOI 10.1126/sciadv.1700887
WOS© Times Cited 30
Abstract

Sedimentary hydrocarbon remnants of eukaryotic C-26-C-30 sterols can be used to reconstruct early algal evolution. Enhanced C-29 sterol abundances provide algal cellmembranes a density advantage in large temperature fluctuations. Here, we combined a literature review with new analyses to generate a comprehensive inventory of unambiguously syngenetic steranes in Neoproterozoic rocks. Our results show that the capacity for C-29 24ethyl- sterol biosynthesis emerged in the Cryogenian, that is, between 720 and 635 million years ago during the Neoproterozoic Snowball Earth glaciations, which were an evolutionary stimulant, not a bottleneck. This biochemical innovation heralded the rise of green algae to global dominance of marine ecosystems and highlights the environmental drivers for the evolution of sterol biosynthesis. The Cryogenian emergence of C-29 sterol biosynthesis places benchmark for verifying older sterane signatures and sets a new framework for our understanding of early algal evolution.

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Publisher's official version 8 414 KB Open access
Supplementary Text, Figures, Legend for Table S1, Table S2, References 28 2 MB Open access
Table S1 Steranes in Neoproterozoic rocks. 1 121 KB Open access
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Hoshino Yosuke, Poshibaeva Aleksandra, Meredith William, Snape Colin, Poshibaev Vladimir, Versteegh Gerard J. M., Kuznetsov Nikolay, Leider Arne, Van Maldegem Lennart, Neumann Mareike, Naeher Sebastian, Moczydlowska Malgorzata, Brocks Jochen J., Jarrett Amber J. M., Tang Qing, Xiao Shuhai, McKirdy David, Das Supriyo Kumar, Alvaro Jose Javier, Sansjofre Pierre, Hallmann Christian (2017). Cryogenian evolution of stigmasteroid biosynthesis. Science Advances, 3(9), e1700887 (8p.). Publisher's official version : https://doi.org/10.1126/sciadv.1700887 , Open Access version : https://archimer.ifremer.fr/doc/00638/75021/