Julca, Irene and Ferrari, Camilla and Flores-Tornero, Maria and Proost, Sebastian and Lindner, Ann-Cathrin and Hackenberg, Dieter and Steinbachova, Lenka and Michaelidis, Christos and Pereira, Sonia Gomes and Misra, Chandra Shekhar and Kawashima, Tomokazu and Borg, Michael and Berger, Frederic and Goldberg, Jacob and Johnson, Mark and Honys, David and Twell, David and Sprunck, Stefanie and Dresselhaus, Thomas and Becker, Joerg D. and Mutwil, Marek (2021) Comparative transcriptomic analysis reveals conserved programmes underpinning organogenesis and reproduction in land plants. NATURE PLANTS, 7 (8). pp. 1143-1159. ISSN 2055-026X, 2055-0278
Full text not available from this repository. (Request a copy)Abstract
A large-scale comparison of transcriptome datasets from ten evolutionarily representative species identifies general patterns on the genomic evolution of various plant organs. Among various insights, the authors find that the origin of organ-specific gene families predate the origin of the organs themselves. 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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GENE FAMILY; ARABIDOPSIS-THALIANA; YOUNG GENES; EVOLUTION; ORIGIN; DIVISION; GENOME; GROWTH; ROOTS |
| Subjects: | 500 Science > 580 Botanical sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften > Lehrstuhl für Zellbiologie und Pflanzenphysiologie (Prof. Dr. Klaus Grasser) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 13 Sep 2022 08:18 |
| Last Modified: | 13 Sep 2022 08:18 |
| URI: | https://pred.uni-regensburg.de/id/eprint/47930 |
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