Combinations of maternal-specific repressive epigenetic marks in the endosperm control seed dormancy

Sato, Hikaru; Santos‐González, Juan; Köhler, Claudia

doi:10.7554/elife.64593

Cited by 14 publications

(17 citation statements)

References 85 publications

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“…5C, Supplementary Fig. 5C and ref 11 ). Interestingly REF6 has already been shown to repress seed dormancy 11,29 .…”

Section: Ore1 Plays a Role In Seed Dormancy Controlmentioning

confidence: 91%

“…5C and ref 11 ). Interestingly REF6 has already been shown to repress seed dormancy 11,29 . At these loci H3K27me3 is established during the coenocytic phase of endosperm development when VEL3 is expressed, and the presence of H3K27me3 at ORE1, WRKY75 and NAC046 in the mature endosperm requires VEL3 (Fig.…”

Section: Ore1 Plays a Role In Seed Dormancy Controlmentioning

confidence: 93%

“…Although imprinted genes can be expressed at any stage of seed development and germination, the timing of chromatin remodelling events that control dormancy and germination is less clear. The H3K27me3 demethylase REF6 is required for gene activation during germination 11 and imprinting can also be lost during dormancy loss in the mature seed 12 . But some genetic evidence suggests that some chromatin modellers act earlier in endosperm development, or even in the central cell to affect seed dormancy 11 .…”

Section: Introductionmentioning

confidence: 99%

“…The H3K27me3 demethylase REF6 is required for gene activation during germination 11 and imprinting can also be lost during dormancy loss in the mature seed 12 . But some genetic evidence suggests that some chromatin modellers act earlier in endosperm development, or even in the central cell to affect seed dormancy 11 . Here we show that mothers maintain progeny dormancy via inheritance of dormancy-inducing epi-alleles in the endosperm.…”

Section: Introductionmentioning

confidence: 99%

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A histone deacetylase complex establishes a transgenerationally inherited maternal epigenetic state controlling progeny seed dormancy

Chen

MacGregor

Stefanato

et al. 2022

Preprint

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Mother plants play an important role in the control of dormancy and dispersal characters of their progeny. In Arabidopsis seed dormancy is imposed by the embryo-surrounding tissues of the endosperm and seed coat. Here we show that the VERNALIZATION5/VIN3-LIKE 3 (VEL3) gene maintains maternal control over progeny seed dormancy by establishing an epigenetic state early in endosperm development that primes the depth of primary seed dormancy later established during seed maturation. VEL3 relocates MSI1 to the nucleolus and associates with other components of the histone deacetylase complex (HDAC), and is required for gene repression via PRC2 and HDAC at pericentromeric regions established in the central cell. Interestingly, the epigenetic state established by the maternal VEL3 is retained trans-generationally in mature seeds, and controls seed dormancy through the repression of programmed cell death-associated gene ORE1. Our data demonstrates a novel mechanism by which maternal control of progeny seed physiology persists post-shedding, maintaining parental control of seed behaviour.

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“…5C, Supplementary Fig. 5C and ref 11 ). Interestingly REF6 has already been shown to repress seed dormancy 11,29 .…”

Section: Ore1 Plays a Role In Seed Dormancy Controlmentioning

confidence: 91%

Section: Ore1 Plays a Role In Seed Dormancy Controlmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A histone deacetylase complex establishes a transgenerationally inherited maternal epigenetic state controlling progeny seed dormancy

Chen

MacGregor

Stefanato

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…However, the endosperm has two maternal doses of the genome, whereas the embryo has one paternal dose [1,62]. The endosperm does not contribute with genetic material to the next generation, but controls a good number of key processes for the development of the embryo (e.g., providing genetic and molecular signals [63]) and it is an important site of genomic imprinting in higher plants [64].…”

Section: Endosperm-embryo Relationships: Imprinted Gene Expressionmentioning

confidence: 99%

Exploring Breakthroughs in Three Traits Belonging to Seed Life

Matilla

2022

Plants

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Based on prior knowledge and with the support of new methodology, solid progress in the understanding of seed life has taken place over the few last years. This update reflects recent advances in three key traits of seed life (i.e., preharvest sprouting, genomic imprinting, and stored-mRNA). The first breakthrough refers to cloning of the mitogen-activated protein kinase-kinase 3 (MKK3) gene in barley and wheat. MKK3, in cooperation with ABA signaling, controls seed dormancy. This advance has been determinant in producing improved varieties that are resistant to preharvest sprouting. The second advance concerns to uniparental gene expression (i.e., imprinting). Genomic imprinting primarily occurs in the endosperm. Although great advances have taken place in the last decade, there is still a long way to go to complete the puzzle regarding the role of genomic imprinting in seed development. This trait is probably one of the most important epigenetic facets of developing endosperm. An example of imprinting regulation is polycomb repressive complex 2 (PRC2). The mechanism of PRC2 recruitment to target endosperm with specific genes is, at present, robustly studied. Further progress in the knowledge of recruitment of PRC2 epigenetic machinery is considered in this review. The third breakthrough referred to in this update involves stored mRNA. The role of the population of this mRNA in germination is far from known. Its relations to seed aging, processing bodies (P bodies), and RNA binding proteins (RBPs), and how the stored mRNA is targeted to monosomes, are aspects considered here. Perhaps this third trait is the one that will require greater experimental dedication in the future. In order to make progress, herein are included some questions that are needed to be answered.

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A REF6-dependent H3K27me3-depleted state facilitates gene activation during germination in Arabidopsis

Pan

Zhang

Zhan

et al. 2023

Journal of Genetics and Genomics

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Combinations of maternal-specific repressive epigenetic marks in the endosperm control seed dormancy

Cited by 14 publications

References 85 publications

A histone deacetylase complex establishes a transgenerationally inherited maternal epigenetic state controlling progeny seed dormancy

A histone deacetylase complex establishes a transgenerationally inherited maternal epigenetic state controlling progeny seed dormancy

Exploring Breakthroughs in Three Traits Belonging to Seed Life

A REF6-dependent H3K27me3-depleted state facilitates gene activation during germination in Arabidopsis

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