Comparative transcriptomic analysis reveals conserved programmes underpinning organogenesis and reproduction in land plants

0551634 - ÚEB 2022 RIV GB eng J - Journal Article
Julca, I. - Ferrari, C. - Flores-Tornero, M. - Proost, S. - Lindner, A.C. - Hackenberg, D. - Steinbachová, Lenka - Michailidis, Christos - Gomes Pereira, S. - Misra, C. S. - Kawashima, T. - Borg, M. - Berger, F. - Goldberg, J. - Johnson, M. - Honys, David - Twell, D. - Sprunck, S. - Dresselhaus, T. - Becker, J. D. - Mutwil, M.
Comparative transcriptomic analysis reveals conserved programmes underpinning organogenesis and reproduction in land plants.
Nature Plants. Roč. 7, č. 8 (2021), s. 1143-1159. ISSN 2055-026X. E-ISSN 2055-0278
R&D Projects: GA ČR(CZ) GA17-23183S; GA MŠMT(CZ) LTC18034; GA MŠMT LTAIN19030; GA MŠMT(CZ) EF16_019/0000738
Institutional support: RVO:61389030
Keywords : GENE FAMILY * ARABIDOPSIS-THALIANA * YOUNG GENES
OECD category: Plant sciences, botany
Impact factor: 17.352, year: 2021
Method of publishing: Open access
http://doi.org/10.1038/s41477-021-00958-2

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.
Permanent Link: http://hdl.handle.net/11104/0326874