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Cryogenian evolution of stigmasteroid biosynthesis

Hoshino, Yosuke; Poshibaeva, Aleksandra; Meredith, W.; Snape, Colin E; Poshibaeve, Vladmir; Versteegh, Gerard J.M.; Kuznetsov, Nikolay; Leider, Arne; van Maldegem, Lennart; Neumann, Mareike; Brocks, Jochen; Jarrett, Amber


Sedimentary hydrocarbon remnants of eukaryotic C26–C30 sterols can be used to reconstruct early algal evolution. Enhanced C29 sterol abundances provide algal cell membranes 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 C29 24-ethyl-sterol biosynthesis emerged in the Cryogenian, that is, between...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Science Advances
DOI: 10.1126/sciadv.1700887
Access Rights: Open Access


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