Easier Lost than Found? What We Know about Plastid Genome Reduction

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F24%3A00604889" target="_blank" >RIV/60077344:_____/24:00604889 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/24:43909298 RIV/00216208:11310/24:10484365

Result on the web

<a href="https://doi.org/10.1007/978-3-031-57446-7_5" target="_blank" >https://doi.org/10.1007/978-3-031-57446-7_5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-031-57446-7_5" target="_blank" >10.1007/978-3-031-57446-7_5</a>

Result language

angličtina

Original language name

Easier Lost than Found? What We Know about Plastid Genome Reduction

Original language description

Plastids are eukaryotic organelles that evolved from a photobiotic symbiont, imparting photosynthetic abilities to heterotrophic hosts. Plastids lose much of their complexity during the endosymbiont-to-organelle transition, reflecting the need of the symbiotic partners to synchronize reproduction and streamline metabolism. This is obvious from genome size reduction, and while the genomes of plastid predecessors, cyanobacteria, typically range 1.6–7.8 Mbp, most plastid genomes range 110–190 kbp. In some lineages, plastid genomes depart from convention, which manifests two-way. Whereas in rhodophytes, chlorophytes, plants, and eugl- enids this leads to the expansion of noncoding DNA, in dinoflagellates, the plastid genome is fragmented into single-gene minicircles, and in one chlorophyte lineage into linear single-stranded hairpin chromosomes. Yet, plastids may later enter the dark phase of their “life history.” Driven by competition, even established phototrophic organisms sometimes revert to heterotrophy or parasitism, leading to further impairment or complete loss of photosynthesis. Here, we recapitulate the history of plastids from early acquisition to their disappearance in nonphotosynthetic algae and plants. We compare how molecular functions encoded by plastids vary in diverse eukaryotic lineages that acquired them, and how they vary in lineages about to lose them. We highlight how genome reduction accompanies plastid life cycles and how evolutionary history shapes their ultimate future.

Czech name

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Czech description

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Type

C - Chapter in a specialist book

CEP classification

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OECD FORD branch

10606 - Microbiology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Book/collection name

Endosymbiotic Organelle Acquisition

ISBN

978-3-031-57444-3

Number of pages of the result

35

Pages from-to

(2024)

Number of pages of the book

494

Publisher name

Springer Cham

Place of publication

Cham

UT code for WoS chapter

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