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ZmCOI2a and ZmCOI2b redundantly regulate anther dehiscence and gametophytic male fertility in maize

ABSTRACT: ZmCOI2a and ZmCOI2b redundantly regulate anther dehiscence and gametophytic male fertility in maize

PROVIDER: PRJNA780311 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR16943378_1.fastq.gz	Fastqsanger.gz
	SRR16943378_2.fastq.gz	Fastqsanger.gz
	SRR16943379_1.fastq.gz	Fastqsanger.gz
	SRR16943379_2.fastq.gz	Fastqsanger.gz
	SRR16943380_1.fastq.gz	Fastqsanger.gz

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ZmCOI2a and ZmCOI2b redundantly regulate anther dehiscence and gametophytic male fertility in maize

Project description:We identified two genes, ZmCOI2a and ZmCOI2b, which redundantly regulate male fertility.

2022-02-15 | GSE188784 | GEO

miR167 limits anther growth to potentiate anther dehiscence

Project description:In flowering plants, anther dehiscence and pollen release are essential for sexual reproduction. Anthers dehisce after cell wall degradation weakens stomium cell junctions in each anther locule, and desiccation creates mechanical forces that open the locules. Either effect or both together may break stomium cell junctions. The microRNA miR167 negatively regulates ARF6 and ARF8, which encode Auxin Response transcription Factors. Arabidopsis mARF6 or mARF8 plants with mutated miR167 target sites have defective anther dehiscence and ovule development. Null mir167a mutations recapitulated mARF6 and mARF8 anther and ovule phenotypes, indicating that MIR167a is the main miR167 precursor gene that delimits ARF6 and ARF8 expression in these organs. Anthers of mir167a or mARF6/8 plants overexpressed genes encoding cell wall loosening functions associated with cell expansion, and grew too large starting at flower stage 11. Experimental desiccation enabled dehiscence of miR167-deficient anthers, indicating competence to dehisce. Conversely, high humidity conditions delayed anther dehiscence in wild-type flowers. These results support a model in which miR167-mediated anther growth arrest permits anther dehiscence. Without miR167 regulation, excess anther growth delays dehiscence by prolonging desiccation.

2019-07-15 | GSE122436 | GEO

INDUCER OF CBF EXPRESSION 1 is a male fertility regulator impacting anther dehydration in Arabidopsis

Project description:Our results show that ICE1 controls plant male fertility via impacting anther dehydration. The loss-of-function mutation in ICE1 gene in Arabidopsis caused anther indehiscence and decreased pollen viability as well as germination rate. Further analysis revealed that the anthers in the mutant of ICE1 (ice1-2) had the structure of stomium, though the epidermis did not shrink to dehisce. The anther indehiscence and influenced pollen viability as well as germination in ice1-2 were due to abnormal anther dehydration, for most of anthers dehisced with drought treatment and pollen grains from those dehydrated anthers had similar viability and germination rates compared with wild type. Accordingly, the sterility of ice1-2 could be rescued by ambient dehydration treatments. Likewise, the stomatal differentiation of ice1-2 anther epidermis was disrupted in a different manner compared with that in leaves. ICE1 specifically bound to MYC-recognition elements in the promoter of FAMA, a key regulator of guard cell differentiation, to activate FAMA expression. Transcriptome profiling in the anther tissues further exhibited ICE1-modulated genes associated with water transport and ion exchange in the anther. Together, this work reveals the key role of ICE1 in male fertility control and establishes a regulatory network mediated by ICE1 for stomata development and water movement in the anther.

2018-09-13 | GSE107260 | GEO

Proteomic Changes of Wheat Male Sterile Anther Induced by Temperature

Project description:Wheat, an important human food crop, is very sensitive to temperature changes. Thermosensitive sterile lines (TMS) is a natural material for exploring the effects of anther development and temperature changes on male fertility. In order to study the possible molecular mechanism of regulating protein activity during anther fertility alteration, proteomics analysis based on high resolution mass spectrometry were used to study the binuclear anther of wheat YS3038.

2022-08-12 | PXD029487 | Pride

miR167 limits anther growth to potentiate anther dehiscence

Project description:miR167 limits anther growth to potentiate anther dehiscence

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Rice transcriptional repressor OsTIE1 controls anther dehiscence and male sterility by regulating JA biosynthesis

Project description:The coordination of pollen viability, stamen filament elongation and anther dehiscence is essential for the successful pollination and reproduction in angiosperms. The hormone jasmonic acid (JA) are crucial for these processes. However, the tight regulation of JA biosynthesis during stamen development is still largely unknown. Here, we demonstrate that the rice (Oryza sativa) ERF-associated amphiphilic repression (EAR) motif-containing protein TCP INTERACTOR CONTAINING EAR MOTIF PROTEIN1 (OsTIE1) tightly regulates JA biosynthesis by repressing TEOSINTE BRANCHED1/CYCLOIDEA/PROLIFERATINGCELLFACTORS (TCP) transcription factor OsTCP1/PCF5 during stamen development. The loss of OsTIE1 function in ostie1 mutants causes male sterility. The ostie1 mutants display inviable pollen, the early stamen filament elongation and the precocious anther dehiscence. JA biosynthesis is activated earlier and JA level is precociously increased in anthers of ostie1. The expression of OsTIE1 is developmentally regulated during stamen development. OsTIE1 is localized in nuclei and has transcriptional repression activity. We further show that OsTIE1 directly interacts with OsTCP1, and overexpression of OsTCP1 caused early anther dehiscence resembling that of ostie1. The expression of genes encoding key enzymes of JA biosynthesis including Oryza sativa lipoxygenase (OsLOX) genes is regulated by the OsTIE1-OsTCP1 complex. Our findings discover that the OsTIE1-OsTCP1 module plays critical roles in stamen development by finely tuning JA biosynthesis, and provides a new foundation to create male sterile plants for hybrid seed production.

2023-12-02 | GSE248536 | GEO

Transcriptional trajectories of anther development provide candidates for engineering male fertility in sorghum.

Project description:Transcriptional trajectories of anther development provide candidates for engineering male fertility in sorghum.

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Transcriptional trajectories of anther development provide candidates for engineering male fertility in sorghum.

Project description:We report transcriptome profiling from three developing stages of anthers in sorghum. Sequencing of nine libraries (three replicates from each stage) yielded >1.12 billion paired-end reads. A total of 31871 known genes expressed in all three replicates of at least one anther stage.

2020-02-03 | GSE141035 | GEO

Gene expression profiling of maize anther and pollen ontogeny

Project description:Global gene expression profiles of seven stages representing 29 days of anther development are analyzed using a 44K oligonucleotide array querying ~80% of maize protein-coding genes. Each anther stage expresses ~10,000 constitutive and ~10,000 or more transcripts restricted to one or a few stages. Keywords: anther development, maize

2008-12-01 | GSE12579 | GEO

INDUCER OF CBF EXPRESSION 1 is a male fertility regulator impacting anther dehydration in Arabidopsis

Project description:INDUCER OF CBF EXPRESSION 1 is a male fertility regulator impacting anther dehydration in Arabidopsis

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