Amphicarpic development in Cardamine chenopodiifolia.

Autor: Emonet A; Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, Köln, 50829, Germany., Pérez-Antón M; Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, Köln, 50829, Germany., Neumann U; Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, Köln, 50829, Germany., Dunemann S; Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, Köln, 50829, Germany., Huettel B; Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, Köln, 50829, Germany., Koller R; Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, IBG-2: Plant Sciences, Wilhelm-Johnen-Street, Jülich, 52425, Germany., Hay A; Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, Köln, 50829, Germany.
Jazyk: angličtina
Zdroj: The New phytologist [New Phytol] 2024 Nov; Vol. 244 (3), pp. 1041-1056. Date of Electronic Publication: 2024 Jul 18.
DOI: 10.1111/nph.19965
Abstrakt: Amphicarpy is an unusual trait where two fruit types develop on the same plant: one above and the other belowground. This trait is not found in conventional model species. Therefore, its development and molecular genetics remain under-studied. Here, we establish the allooctoploid Cardamine chenopodiifolia as an emerging experimental system to study amphicarpy. We characterized C. chenopodiifolia development, focusing on differences in morphology and cell wall histochemistry between above- and belowground fruit. We generated a reference transcriptome with PacBio full-length transcript sequencing and analysed differential gene expression between above- and belowground fruit valves. Cardamine chenopodiifolia has two contrasting modes of seed dispersal. The main shoot fails to bolt and initiates floral primordia that grow underground where they self-pollinate and set seed. By contrast, axillary shoots bolt and develop exploding seed pods aboveground. Morphological differences between aerial explosive fruit and subterranean nonexplosive fruit were reflected in a large number of differentially regulated genes involved in photosynthesis, secondary cell wall formation and defence responses. Tools established in C. chenopodiifolia, such as a reference transcriptome, draft genome assembly and stable plant transformation, pave the way to study amphicarpy and trait evolution via allopolyploidy.
(© 2024 The Author(s). New Phytologist © 2024 New Phytologist Foundation.)
Databáze: MEDLINE
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