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  Endosperm evolution by duplicated and neofunctionalized Type I MADS-box transcription factors

Qiu, Y., & Köhler, C. (2021). Endosperm evolution by duplicated and neofunctionalized Type I MADS-box transcription factors. Molecular Biology and Evolution, 39(1): msab355. doi:10.1093/molbev/msab355.

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Qiu, Y.1, Author              
Köhler, C.1, Author              
Affiliations:
1Epigenetic Mechanisms of Plant Reproduction, Department Köhler, Max Planck Institute of Molecular Plant Physiology, Max Planck Society, ou_3282043              

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 Abstract: MADS-box transcription factors (TFs) are present in nearly all major eukaryotic groups. They are divided into Type I and Type II that differ in domain structure, functional roles, and rates of evolution. In flowering plants, major evolutionary innovations like flowers, ovules and fruits have been closely connected to Type II MADS-box TFs. The role of Type I MADS-box TFs in angiosperm evolution remains to be identified. Here, we show that the formation of angiosperm-specific Type I MADS-box clades of Mγ and Mγ-interacting Mα genes (Mα*) can be tracked back to the ancestor of all angiosperms. Angiosperm-specific Mγ and Mα* genes were preferentially expressed in the endosperm, consistent with their proposed function as heterodimers in the angiosperm-specific embryo-nourishing endosperm tissue. We propose that duplication and diversification of Type I MADS-genes underpins the evolution of the endosperm, a developmental innovation closely connected to the origin and success of angiosperms.

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Language(s): eng - English
 Dates: 2021-12-13
 Publication Status: Published in print
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 Rev. Type: -
 Identifiers: DOI: 10.1093/molbev/msab355
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Title: Molecular Biology and Evolution
  Other : Mol. Biol. Evol.
Source Genre: Journal
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Publ. Info: Oxford : Oxford University Press
Pages: - Volume / Issue: 39 (1) Sequence Number: msab355 Start / End Page: - Identifier: ISSN: 0737-4038
CoNE: https://pure.mpg.de/cone/journals/resource/954925536119