ICTS:29635

Video URL

Upstream regulator of genomic imprinting in rice endosperm is a small RNA-associated chromatin remo…

Upstream regulator of genomic imprinting in rice endosperm is a small RNA-associated chromatin remodeler CLSY3

(2024). Upstream regulator of genomic imprinting in rice endosperm is a small RNA-associated chromatin remodeler CLSY3. SciVideos. https://youtube.com/live/Q5EzMzcsT44

Upstream regulator of genomic imprinting in rice endosperm is a small RNA-associated chromatin remodeler CLSY3. SciVideos, Sep. 16, 2024, https://youtube.com/live/Q5EzMzcsT44 

          @misc{ scivideos_ICTS:29635,
            doi = {},
            url = {https://youtube.com/live/Q5EzMzcsT44},
            author = {},
            keywords = {},
            language = {en},
            title = {Upstream regulator of genomic imprinting in rice endosperm is a small RNA-associated chromatin remodeler CLSY3},
            publisher = {},
            year = {2024},
            month = {sep},
            note = {ICTS:29635 see, \url{https://scivideos.org/icts-tifr/29635}}
          }
Avik Pal
Talk numberICTS:29635
Source RepositoryICTS-TIFR
Source EventInterdisciplinary aspects of chromatin organization and gene regulation
Collection

Abstract

Genomic imprinting is observed in endosperm, a placenta-like seed tissue, where transposable elements (TEs) and repeat-derived small(s)RNAs mediate epigenetic changes in plants. In imprinting, uniparental gene expression arises due to parent-specific epigenetic marks on one allele but not on the other. The importance of sRNAs and their regulation in endosperm development or in imprinting is poorly understood in crops. Here we show that a previously uncharacterized CLASSY (CLSY)-family chromatin remodeler named OsCLSY3 is essential for rice endosperm development and imprinting, acting as an upstream player in sRNA pathway. Comparative transcriptome and genetic analysis indicated its endosperm-preferred expression and its paternally imprinted nature. These important features were modulated by RNA-directed DNA methylation (RdDM) of tandemly arranged TEs in its promoter. Upon perturbation of OsCLSY3 in transgenic lines we observed defects in endosperm development and loss of around 70% of ...