In plants, small RNAs have been recognized as key genetic and epigenetic regulators of development. Small RNAs are usually 20 to 30 nucleotides in length and they control, in a sequence specific manner, the transcriptional or post-transcriptional expression of genes. In this review, we present a comprehensive overview of the most recent findings about the function of small RNAs in ovule development, including megasporogenesis and megagametogenesis, both in sexual and apomictic plants. We discuss recent studies on the role of miRNAs, siRNAs and trans-acting RNAs (ta-siRNAs) in early female germline differentiation. The mechanistic complexity and unique regulatory features are reviewed, and possible directions for future research are provided.

The emerging role of small RNAs in ovule development, a kind of magic / R. Petrella, M. Cucinotta, M.A. Mendes, C.J. Underwood, L. Colombo. - In: PLANT REPRODUCTION. - ISSN 2194-7953. - (2021). [Epub ahead of print] [10.1007/s00497-021-00421-4]

The emerging role of small RNAs in ovule development, a kind of magic

R. Petrella
Primo
;
M. Cucinotta;M.A. Mendes;L. Colombo
Ultimo
2021

Abstract

In plants, small RNAs have been recognized as key genetic and epigenetic regulators of development. Small RNAs are usually 20 to 30 nucleotides in length and they control, in a sequence specific manner, the transcriptional or post-transcriptional expression of genes. In this review, we present a comprehensive overview of the most recent findings about the function of small RNAs in ovule development, including megasporogenesis and megagametogenesis, both in sexual and apomictic plants. We discuss recent studies on the role of miRNAs, siRNAs and trans-acting RNAs (ta-siRNAs) in early female germline differentiation. The mechanistic complexity and unique regulatory features are reviewed, and possible directions for future research are provided.
Apomixis; Female germline; Ovule; RdDM; Reproduction; sRNA
Settore BIO/11 - Biologia Molecolare
Settore BIO/01 - Botanica Generale
17-giu-2021
Article (author)
File in questo prodotto:
File Dimensione Formato  
Petrella2021_Article_TheEmergingRoleOfSmallRNAsInOv.pdf

accesso aperto

Descrizione: Online first
Tipologia: Publisher's version/PDF
Dimensione 1.7 MB
Formato Adobe PDF
1.7 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/878531
Citazioni
  • ???jsp.display-item.citation.pmc??? 1
  • Scopus 1
  • ???jsp.display-item.citation.isi??? 1
social impact