AMS-dependent and independent regulation of anther transcriptome and comparison with those affected by other Arabidopsis anther genes.

BMC Plant Biology
Xuan MaHong Ma

Abstract

In flowering plants, the development of male reproductive organs is controlled precisely to achieve successful fertilization and reproduction. Despite the increasing knowledge of genes that contribute to anther development, the regulatory mechanisms controlling this process are still unclear. In this study, we analyzed the transcriptome profiles of early anthers of sterile mutants aborted microspores (ams) and found that 1,368 genes were differentially expressed in ams compared to wild type anthers, affecting metabolism, transportation, ubiquitination and stress response. Moreover, the lack of significant enrichment of potential AMS binding sites (E-box) in the promoters of differentially expressed genes suggests both direct and indirect regulation for AMS-dependent regulation of anther transcriptome involving other transcription factors. Combining ams transcriptome profiles with those of two other sterile mutants, spl/nzz and ems1/exs, expression of 3,058 genes were altered in at least one mutant. Our investigation of expression patterns of major transcription factor families, such as bHLH, MYB and MADS, suggested that some closely related homologs of known anther developmental genes might also have similar functions. Addition...Continue Reading

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Citations

Jul 11, 2012·The Plant Journal : for Cell and Molecular Biology·Baomin FengHong Ma
Sep 17, 2013·The Plant Journal : for Cell and Molecular Biology·Jihyun MoonWilliam Zacheus Cande
Jan 7, 2014·The Plant Journal : for Cell and Molecular Biology·Timothy Kelliher, Virginia Walbot
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Feb 6, 2020·Frontiers in Plant Science·Xiaoning Lei, Bing Liu
Jul 27, 2021·The Plant Journal : for Cell and Molecular Biology·Tzu-Hsiang Huang, Der-Fen Suen

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Methods Mentioned

BETA
chip
PCR
ubiquitination

Software Mentioned

Bioconductor
MeV
R
MAS5

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