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Zangishei, Z.* ; Annacondia, M.L.* ; Gundlach, H. ; Didriksen, A.* ; Bruckmüller, J.* ; Salari, H.* ; Krause, K.* ; Martinez, G.J.*

Parasitic plant small RNA analyses unveil parasite-specific signatures of microRNA retention, loss, and gain.

Plant Physiol. 190, 1242-1259 (2022)
Publ. Version/Full Text Research data DOI PMC
Open Access Gold (Paid Option)
Creative Commons Lizenzvertrag
Parasitism is a successful life strategy that has evolved independently in several families of vascular plants. The genera Cuscuta and Orobanche represent examples of the two profoundly different groups of parasites: one parasitizing host shoots and the other infecting host roots. In this study, we sequenced and described the overall repertoire of small RNAs from Cuscuta campestris and Orobanche aegyptiaca. We showed that Cuscuta campestris contains a number of novel microRNAs (miRNAs) in addition to a conspicuous retention of miRNAs that are typically lacking in other Solanales, while several typically conserved miRNAs seem to have become obsolete in the parasite. One new miRNA appears to be derived from a horizontal gene transfer event. The exploratory analysis of the miRNA population (exploratory due to the absence of a full genomic sequence for reference) from the root parasitic Orobanche aegyptiaca also revealed a loss of a number of miRNAs compared to photosynthetic species from the same order. In summary, our study shows partly similar evolutionary signatures in the RNA silencing machinery in both parasites. Our data bear proof for the dynamism of this regulatory mechanism in parasitic plants.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Cuscuta Degradome ; Cuscuta Srnas ; Rna-directed Dna Methylation ; Microrna ; Parasitic Plant ; Transposable Elements
ISSN (print) / ISBN 0032-0889
e-ISSN 1532-2548
Journal Plant Physiology
Quellenangaben Volume: 190, Issue: 2, Pages: 1242-1259 Article Number: , Supplement: ,
Publisher American Society of Plant Biologists (ASPB)
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) Research Unit Plant Genome and Systems Biology (PGSB)
Grants Ministry of Science Research and Technology
Sveriges Lantbruksuniversitet
Vetenskapsrådet
Knut och Alice Wallenbergs Stiftelse
Carl Tryggers Stiftelse för Vetenskaplig Forskning
Bundesministerium für Bildung und Forschung
Svenska Forskningsrådet Formas
Tromsø Forskningsstiftelse
Norwegian Research Foundation