Is ftsH the key to plastid longevity in sacoglossan slugs?

Genome Biology and Evolution
Jan de VriesSven B Gould

Abstract

Plastids sequestered by sacoglossan sea slugs have long been a puzzle. Some sacoglossans feed on siphonaceous algae and can retain the plastids in the cytosol of their digestive gland cells. There, the stolen plastids (kleptoplasts) can remain photosynthetically active in some cases for months. Kleptoplast longevity itself challenges current paradigms concerning photosystem turnover, because kleptoplast photosystems remain active in the absence of nuclear algal genes. In higher plants, nuclear genes are essential for plastid maintenance, in particular, for the constant repair of the D1 protein of photosystem II. Lateral gene transfer was long suspected to underpin slug kleptoplast longevity, but recent transcriptomic and genomic analyses show that no algal nuclear genes are expressed from the slug nucleus. Kleptoplast genomes themselves, however, appear expressed in the sequestered state. Here we present sequence data for the chloroplast genome of Acetabularia acetabulum, the food source of the sacoglossan Elysia timida, which can maintain Acetabularia kleptoplasts in an active state for months. The data reveal what might be the key to sacoglossan kleptoplast longevity: plastids that remain photosynthetically active within slug...Continue Reading

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Citations

Apr 29, 2014·Trends in Plant Science·Jan de VriesSven B Gould
Feb 21, 2016·Trends in Plant Science·Jan de VriesSven B Gould
Sep 1, 2015·Genome Biology and Evolution·Cessa RauchSven B Gould
Jun 17, 2015·Journal of Experimental Botany·John A Raven
Mar 31, 2015·Proceedings of the National Academy of Sciences of the United States of America·David Roy Smith, Patrick J Keeling
Apr 30, 2014·Communicative & Integrative Biology·Gregor ChristaSven B Gould
Feb 11, 2015·Genome Biology and Evolution·Michael Del VastoDavid Roy Smith
Feb 6, 2015·Proceedings. Biological Sciences·Jan de VriesSven B Gould
Jun 6, 2015·PloS One·Jong Im KimWoongghi Shin
Jan 21, 2015·Scientific Reports·Sónia CruzMary E Rumpho
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Aug 14, 2018·Genome Biology and Evolution·Hager GaoudaDavid Roy Smith
Jun 7, 2019·The Journal of Experimental Biology·Paulo CartaxanaSónia Cruz
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Aug 12, 2017·Scientific Reports·Paulo CartaxanaSónia Cruz
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Sep 1, 2017·Genome Biology and Evolution·Jong Im KimWoongghi Shin
Sep 2, 2017·Frontiers in Plant Science·Cessa RauchWilliam F Martin
Oct 6, 2020·Frontiers in Plant Science·Jong Im KimWoongghi Shin
Dec 5, 2017·Current Biology : CB·Andrea Del CortonaOlivier De Clerck
May 15, 2021·Journal of Experimental Botany·Vesa HavurinneEsa Tyystjärvi

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Datasets Mentioned

BETA
HG794360

Methods Mentioned

BETA
PCRs

Software Mentioned

BlastP
Sequencher
PhyML

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