ArticlePlant molecular biology2008
The Arabidopsis SET-domain protein ASHR3 is involved in stamen development and interacts with the bHLH transcription factor ABORTED MICROSPORES (AMS).
Article in Plant molecular biology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.
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40 citing papers in PubMed, 82 citations in OpenAlex.
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- Characterization and transcriptome analysis of a dominant genic male sterile cotton mutant.BMC plant biology · 2020Article
- The function of histone lysine methylation related SET domain group proteins in plants.Protein science : a publication of the Protein Society · 2020Review
- Genome-wide identification and expression profiling of SET DOMAIN GROUP family in Dendrobium catenatum.BMC plant biology · 2020Article
- Isolation and Identification of aInternational journal of molecular sciences · 2020Article
- Investigation of the genes associated with a male sterility mutant (msm) in Chinese cabbage (Brassica campestris ssp. pekinensis) using RNA-Seq.Molecular genetics and genomics : MGG · 2020Article
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- The role of receptor-like kinases in regulating plant male reproduction.Plant reproduction · 2018Review
- Mapping and Preliminary Analysis of ABORTED MICROSPORES (Frontiers in plant science · 2017Article
- Biphasic regulation of the transcription factor ABORTED MICROSPORES (AMS) is essential for tapetum and pollen development in Arabidopsis.The New phytologist · 2017Article
- Diversification and evolution of the SDG gene family in Brassica rapa after the whole genome triplication.Scientific reports · 2015Article
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7 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
The Arabidopsis thaliana genome contains more than 30 genes encoding SET-domain proteins that are thought to be epigenetic regulators of gene expression and chromatin structure. SET-domain proteins can be divided into subgroups, and members of the Polycomb group (PcG) and trithorax group (trxG) have been shown to be important regulators of development. Both in animals and plants some of these proteins are components of multimeric protein complexes. Here, we have analyzed the Arabidopsis trxG protein ASHR3 which has a SET domain and pre- and post-SET domains similar to that of Ash1 in Drosophila. In addition to the SET domain, a divergent PHD finger is found in the N-terminus of the ASHR3 protein. As expected from SET-domain proteins involved in transcriptional activation, ASHR3 (coupled to GFP) localizes to euchromatin. A yeast two-hybrid screening revealed that the ASHR3 protein interacts with the putative basic helix-loop-helix (bHLH) transcription factor ABORTED MICROSPORES (AMS), which is involved in anther and stamen development in Arabidopsis. Deletion mapping indicated that both the PHD finger and the SET domain mediate the interaction between the two proteins. Overexpression of ASHR3 led in general to growth arrest, and specifically to degenerated anthers and male sterility. Expression analyses demonstrated that ASHR3 like AMS is expressed in the anther and in stamen filaments. We therefore propose that AMS can target ASHR3 to chromatin and regulate genes involved in stamen development and function.
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