title: Time to grow up: the temporal role of smallRNAs in plants.
abstract: Over the past two years, several Arabidopsis genes that were initially identified as vegetative phase change mutants have been shown to have roles in smallRNA (sRNA) biogenesis. This has led to the identification of a new class of short interfering RNAs (siRNAs) called trans-acting siRNAs (ta-siRNAs).
authors.affiliation: Plant Science Institute, Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6018, USA.
authors.forename: Matthew R
authors.initials: MR
authors.lastname: Willmann
authors.forename: R Scott
authors.initials: RS
authors.lastname: Poethig
mesh_terms: D018507:Gene Expression Regulation, Developmental / Q000502:physiology; D018506:Gene Expression Regulation, Plant / Q000502:physiology*; D020868:Gene Silencing / Q000502:physiology*; D035683:MicroRNAs / Q000378:metabolism*; D063245:Plant Development; D018749:RNA, Plant / Q000378:metabolism*; D034741:RNA, Small Interfering / Q000378:metabolism*
chemical_list: D035683:MicroRNAs; D018749:RNA, Plant; D034741:RNA, Small Interfering