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  BABY BOOM regulates early embryo and endosperm development

Chen, B., Maas, L., Figueiredo, D., Zhong, Y., Reis, R., Li, M., et al. (2022). BABY BOOM regulates early embryo and endosperm development. Proceedings of the National Academy of Sciences of the United States of America, 119(25): e2201761119. doi:10.1073/pnas.2201761119.

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Datensatz-Permalink: https://hdl.handle.net/21.11116/0000-000A-E7BD-D Versions-Permalink: https://hdl.handle.net/21.11116/0000-000C-2781-6
Genre: Zeitschriftenartikel
Alternativer Titel : Proceedings of the National Academy of Sciences

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 Urheber:
Chen, Baojian1, Autor
Maas, Lena1, Autor
Figueiredo, D.D.2, Autor           
Zhong, Yu1, Autor
Reis, Ricardo1, Autor
Li, Mengran1, Autor
Horstman, Anneke1, Autor
Riksen, Tjitske1, Autor
Weemen, Mieke1, Autor
Liu, Hang1, Autor
Siemons, Charlotte1, Autor
Chen, Shaojiang1, Autor
Angenent, Gerco C.1, Autor
Boutilier, Kim1, Autor
Affiliations:
1external, ou_persistent22              
2Seed Development and Apomixis, Department Köhler, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_3334980              

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 Zusammenfassung: The BABY BOOM (BBM) AINTEGUMENTA-LIKE (AIL) AP2/ERF domain transcription factor is a major regulator of plant cell totipotency, as it induces asexual embryo formation when ectopically expressed. Surprisingly, only limited information is available on the role of BBM during zygotic embryogenesis. Here we reexamined BBM expression and function in the model plant Arabidopsis thaliana (Arabidopsis) using reporter analysis and newly developed CRISPR mutants. BBM was expressed in the embryo from the zygote stage and also in the maternal (nucellus) and filial (endosperm) seed tissues. Analysis of CRISPR mutant alleles for BBM (bbm-cr) and the redundantly acting AIL gene PLETHORA2 (PLT2) (plt2-cr) uncovered individual roles for these genes in the timing of embryo progression. We also identified redundant roles for BBM and PLT2 in endosperm proliferation and cellularization and the maintenance of zygotic embryo development. Finally, we show that ectopic BBM expression in the egg cell of Arabidopsis and the dicot crops Brassica napus and Solanum lycopersicon is sufficient to bypass the fertilization requirement for embryo development. Together these results highlight roles for BBM and PLT2 in seed development and demonstrate the utility of BBM genes for engineering asexual embryo development in dicot species.

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Sprache(n): eng - English
 Datum: 2022-06-162022-06-16
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1073/pnas.2201761119
 Art des Abschluß: -

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Titel: Proceedings of the National Academy of Sciences of the United States of America
  Andere : PNAS
  Andere : Proceedings of the National Academy of Sciences of the USA
  Kurztitel : Proc. Natl. Acad. Sci. U. S. A.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Washington, D.C. : National Academy of Sciences
Seiten: - Band / Heft: 119 (25) Artikelnummer: e2201761119 Start- / Endseite: - Identifikator: ISSN: 0027-8424
CoNE: https://pure.mpg.de/cone/journals/resource/954925427230