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Title: Comparative transcriptomic analysis reveals conserved programmes underpinning organogenesis and reproduction in land plants
Authors: Julca, Irene
Ferrari, Camilla
Flores-Tornero, María
Proost, Sebastian
Lindner, Ann-Cathrin
Hackenberg, Dieter
Steinbachová, Lenka
Michaelidis, Christos
Gomes Pereira, Sónia
Misra, Chandra Shekhar
Kawashima, Tomokazu
Borg, Michael
Berger, Frédéric
Goldberg, Jacob
Johnson, Mark
Honys, David
Twell, David
Sprunck, Stefanie
Dresselhaus, Thomas
Becker, Jörg D.
Mutwil, Marek
Keywords: Science::Biological sciences
Issue Date: 2021
Source: Julca, I., Ferrari, C., Flores-Tornero, M., Proost, S., Lindner, A., Hackenberg, D., Steinbachová, L., Michaelidis, C., Gomes Pereira, S., Misra, C. S., Kawashima, T., Borg, M., Berger, F., Goldberg, J., Johnson, M., Honys, D., Twell, D., Sprunck, S., Dresselhaus, T., ...Mutwil, M. (2021). Comparative transcriptomic analysis reveals conserved programmes underpinning organogenesis and reproduction in land plants. Nature Plants, 7(8), 1143-1159.
Project: MOE2018-T2-2-053 
Journal: Nature Plants 
Abstract: The appearance of plant organs mediated the explosive radiation of land plants, which shaped the biosphere and allowed the establishment of terrestrial animal life. The evolution of organs and immobile gametes required the coordinated acquisition of novel gene functions, the co-option of existing genes and the development of novel regulatory programmes. However, no large-scale analyses of genomic and transcriptomic data have been performed for land plants. To remedy this, we generated gene expression atlases for various organs and gametes of ten plant species comprising bryophytes, vascular plants, gymnosperms and flowering plants. A comparative analysis of the atlases identified hundreds of organ- and gamete-specific orthogroups and revealed that most of the specific transcriptomes are significantly conserved. Interestingly, our results suggest that co-option of existing genes is the main mechanism for evolving new organs. In contrast to female gametes, male gametes showed a high number and conservation of specific genes, which indicates that male reproduction is highly specialized. The expression atlas capturing pollen development revealed numerous transcription factors and kinases essential for pollen biogenesis and function.
ISSN: 2055-026X
DOI: 10.1038/s41477-021-00958-2
Schools: School of Biological Sciences 
Rights: © 2021 The Author(s), under exclusive licence to Springer Nature Limited. All rights reserved. This paper was published in Nature Plants and is made available with permission of The Author(s).
Fulltext Permission: open
Fulltext Availability: With Fulltext
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