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

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

ORGANISM(S): Zea mays

PROVIDER: GSE188784 | GEO | 2022/02/15

REPOSITORIES: GEO

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

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

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Impact of anti-tumor necrosis factors antibodies treatment on fertility of inflammatory bowel diseases male patients

Project description:Primary objectives: To assess the impact of antiTNF agents on the male inflammatory bowel diseases patients` fertility Primary outcomes:- semen quality and quantity, inclusive sperm chromatine structure analysis prior and during anti-TNF therapy- time to conception

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The Gene ANTHER DEHISCENCE REPRESSOR (ADR) Controls Male Fertility by Suppressing the ROS Accumulation and Anther Cell Wall Thickening in Arabidopsis.

Project description:Male sterility in plants is caused by various stimuli such as hormone changes, stress, cytoplasmic alterations and nuclear gene mutations. The gene ANTHER DEHISCENCE REPRESSOR (ADR), which is involved in regulating male sterility in Arabidopsis, was functionally analyzed in this study. In ADR::GUS flowers, strong GUS activity was detected in the anthers of young flower buds but was low in mature flowers. ADR?+?GFP fusion proteins, which can be modified by N-myristoylation, were targeted to peroxisomes. Ectopic expression of ADR in transgenic Arabidopsis plants resulted in male sterility due to anther indehiscence. The defect in anther dehiscence in 35S::ADR flowers is due to the reduction of ROS accumulation, alteration of the secondary thickening in the anther endothecium and suppression of the expression of NST1 and NST2, which are required for anther dehiscence through regulation of secondary wall thickening in anther endothecial cells. This defect could be rescued by external application of hydrogen peroxide (H2O2). These results demonstrated that ADR must be N-myristoylated and targeted to the peroxisome during the early stages of flower development to negatively regulate anther dehiscence by suppressing ROS accumulation and NST1/NST2 expression.

| S-EPMC6434047 | biostudies-literature

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

HD-ZIP IV transcription factor OCL4 and 21-nt phasiRNAs are dispensable for male fertility in maize anthers

Project description:The maize ocl4 mutants showed differing levels of male sterility, which seems correlating with the quantity of 21-nt phasiRNA remaining during pre-meiotic stage. In this case, sRNA and transcriptome was profiled and compared in this study, showed that OCL4 and 21-nt phasiRNAs are dispensable for male fertility in maize anthers.

2021-09-09 | GSE150446 | 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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SmCOI1 affects anther dehiscence in a male-sterile Solanum melongena line.

Project description:Anther indehiscence is an important form of functional male sterility that can facilitate the production of hybrid seed; however, the molecular mechanisms of anther indehiscence-based male sterility have not been thoroughly explored in eggplant (Solanum melongena L.). Here, we used two-dimensional gel electrophoresis to compare the protein profiles in the anthers of normally developing (F142) and anther indehiscent (S16) S. melongena plants. Four differentially expressed proteins were identified using matrix-assisted laser desorption/ionization time-of-flight/time-of-flight mass spectrometry. Of these proteins, the transcript accumulation of the eggplant CORONATINE INSENSITIVE1 (SmCOI1) was significantly downregulated in S16 relative to F142. Phylogenetic analysis showed that SmCOI1 has high amino acid sequence similarity and clustered into the same subgroup as its homologs in other members of the Solanaceae. Subcellular localization analysis showed that SmCOI1 localized to the nucleus. Moreover, reverse-transcription quantitative PCR revealed that the jasmonic acid pathway genes SmJAZ1 and SmOPR3 are upregulated in F142 relative to S16. Protein-protein interaction studies identified a direct interaction between SmCOI1 and SmOPR3, but SmCOI1 failed to interact with SmJAZ1. These findings shed light on the regulatory mechanisms of anther dehiscence in eggplant.

| S-EPMC7193836 | biostudies-literature

Effect of miR-106b~25 in mouse spermatogenesis and male fertility

Project description:We investigated the miRNA cluster miR-106b~25 as potential candidate causing male infertility. We analized single and double KO mice. Single KO show derregulation of multiple molecular pathways and disrupted early spermatogenesys, but retain fertility. Double KO show severely disrupted testicular histology and significantly reduced fertility.

2020-11-06 | E-MTAB-8964 | biostudies-arrayexpress

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

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