The transcriptional co-regulators NBCL1 and NBCL2 redundantly coordinate aerial organ development and root nodule identity in legumes

Liu, Shengbin; Magne, Kévin; Zhou, Jing; Laude, Juliette; Signor, Christine Le; Bendahmane, Abdelhafid; Thompson, Richard; Couzigou, Jean‐Malo; Ratet, Pascal

doi:10.1093/jxb/erac389

Cited by 3 publications

(1 citation statement)

References 71 publications

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“…As for BOP1/2-like genes, their orthologues are known in genomes of P. sativum, M. truncatula, Lotus japonicus (Regel) K.Larsen, and Lupinus angustifolius L. (Liu et al, 2023). In pea, the mutation cochleata1 (coch1) of a BOP1/2 orthologue is known to affect floral development (Couzigou et al, 2012).…”

Section: Regulation Of Flower Nectaries Development In Legumesmentioning

confidence: 99%

Floral nectaries in Leguminosae: structure, diversity, and possible evolution

Sinjushin

2024

Preprint

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Floral nectar is a key reward in Leguminosae despite the exceptional diversity of flowers in this family. The paper aims to summarize the available data on structure, ontogeny, regulation, and possible evolution of the leguminous floral nectaries. To date, detailed characterization of ultrastructure and mode of secretion is available only for a few representative of the family whereas the majority remains understudied from this perspective. In most cases, regardless of flower symmetry, nectaries are localized between stamens and a carpel. The nectar is usually exuded from modified stomata although the exact mode of secretion by specialized parenchyma may differ between taxa. The leguminous floral nectaries often have certain features of monosymmetry with preferentially abaxial development. Nectaries were independently lost in several lineages, and equally recurrent is the emergence of substitutive, i.e. evolutionary innovative, nectar-producing structures. Floral nectaries possess a certain degree of evolutionary inertia, i.e. they remain stable even in lineages in which flower morphology underwent significant changes compared with an ancestral plan, such as shifts in merism, symmetry, organ number and alike. Due to their evolutionary stability, floral nectaries are rarely used in taxonomy of Leguminosae.

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Section: Regulation Of Flower Nectaries Development In Legumesmentioning

confidence: 99%

Floral nectaries in Leguminosae: structure, diversity, and possible evolution

Sinjushin

2024

Preprint

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Floral Nectaries in Leguminosae: Structure, Diversity, and Possible Evolution

Sinjushin

2024

Bot. Rev.

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Discovery of diverse chimeric peptides in a eukaryotic proteome sets the stage for the experimental proof of the mosaic translation hypothesis

Çakır,

Gabed,

Köroğlu

et al. 2024

Preprint

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The high complexity of eukaryotic organisms enabled their evolutionary success, which became possible due to the diversification of eukaryotic proteomes. Various mechanisms contributed to this process. Alternative splicing had the largest known impact among these mechanisms: tens or hundreds of protein isoforms produced from a single genetic locus. Earlier, we hypothesized that along with alternative splicing, a different but conceptually similar mechanism creates novel versions of existing proteins in all eukaryotes. However, this mechanism acts at the level of translation, where the novelty of an amino acid sequence is achieved via multiple programmed ribosomal frameshifting. This mechanism, which is termed mosaic translation, is very difficult to demonstrate even with the most up-to-date molecular tools. Thus, it remained unnoticed so far. Using only a portion of all mass spectrometry proteomic data generated from various organs of the model plantMedicago truncatula, we attempted the first step toward the experimental proof of this hypothesis. Our originalin silicoapproach resulted in the discovery of two candidates for mosaic proteins (homologs of EF1α and RuBisCo) and 154 candidates for chimeric peptides. Chimeric peptides and polypeptides are produced in the course of one ribosomal frameshifting event and may correspond to parts of mosaic proteins. In addition, our analysis reveals the possibility of translation of chimeric peptides from five ribosomal RNA transcripts, ten long non-coding RNA transcripts, and one transfer RNA transcript. These findings are very novel and will be the basis for experimental validation in future studies. In this work, we present multiple lines of indirect evidence that support the validity of ourin silicodata.

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The transcriptional co-regulators NBCL1 and NBCL2 redundantly coordinate aerial organ development and root nodule identity in legumes

Cited by 3 publications

References 71 publications

Floral nectaries in Leguminosae: structure, diversity, and possible evolution

Floral nectaries in Leguminosae: structure, diversity, and possible evolution

Floral Nectaries in Leguminosae: Structure, Diversity, and Possible Evolution

Discovery of diverse chimeric peptides in a eukaryotic proteome sets the stage for the experimental proof of the mosaic translation hypothesis

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