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Architecture and evolution of a minute plant genome

Ibarra-Laclette, E.; Lyons, E.; Hernández-Guzmán, G.; Pérez-Torres, C.A.; Carretero-Paulet, L.; Chang, T.-H.; Lan, T.; Welch, A.J.; Abraham Juárez, M.J.; Simpson, J.; Fernández-Cortés, A.; Arteaga-Vázquez, M.; Góngora-Castillo, E.; Acevedo-Hernández, A.; Schuster, S.C.; Himmelbauer, H.; Minoche, A.E.; Xu, S.; Lynch, M.; Oropeza-Aburto, A.; Cervantes-Pérez, S.A.; de Jesús Ortega-Estrada, M.; Cervantes-Luevano, J.I.; Michael, T.P.; Mockler, T.; Bryant, D.; Herrera-Estrella, A.; Albert, V.A.; Herrera-Estrella, L.

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Authors

E. Ibarra-Laclette

E. Lyons

G. Hernández-Guzmán

C.A. Pérez-Torres

L. Carretero-Paulet

T.-H. Chang

T. Lan

M.J. Abraham Juárez

J. Simpson

A. Fernández-Cortés

M. Arteaga-Vázquez

E. Góngora-Castillo

A. Acevedo-Hernández

S.C. Schuster

H. Himmelbauer

A.E. Minoche

S. Xu

M. Lynch

A. Oropeza-Aburto

S.A. Cervantes-Pérez

M. de Jesús Ortega-Estrada

J.I. Cervantes-Luevano

T.P. Michael

T. Mockler

D. Bryant

A. Herrera-Estrella

V.A. Albert

L. Herrera-Estrella



Abstract

It has been argued that the evolution of plant genome size is principally unidirectional and increasing owing to the varied action of whole-genome duplications (WGDs) and mobile element proliferation1. However, extreme genome size reductions have been reported in the angiosperm family tree. Here we report the sequence of the 82-megabase genome of the carnivorous bladderwort plant Utricularia gibba. Despite its tiny size, the U. gibba genome accommodates a typical number of genes for a plant, with the main difference from other plant genomes arising from a drastic reduction in non-genic DNA. Unexpectedly, we identified at least three rounds of WGD in U. gibba since common ancestry with tomato (Solanum) and grape (Vitis). The compressed architecture of the U. gibba genome indicates that a small fraction of intergenic DNA, with few or no active retrotransposons, is sufficient to regulate and integrate all the processes required for the development and reproduction of a complex organism.

Citation

Ibarra-Laclette, E., Lyons, E., Hernández-Guzmán, G., Pérez-Torres, C., Carretero-Paulet, L., Chang, T., …Herrera-Estrella, L. (2013). Architecture and evolution of a minute plant genome. Nature, 498(7452), 94-98. https://doi.org/10.1038/nature12132

Journal Article Type Article
Acceptance Date Mar 25, 2013
Publication Date Jun 6, 2013
Deposit Date Mar 7, 2016
Publicly Available Date Mar 8, 2016
Journal Nature
Print ISSN 0028-0836
Electronic ISSN 1476-4687
Publisher Nature Research
Peer Reviewed Peer Reviewed
Volume 498
Issue 7452
Pages 94-98
DOI https://doi.org/10.1038/nature12132

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