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Artículo

Whitefly genomes contain ribotoxin coding genes acquired from plants

Lapadula, Walter JesúsIcon ; Mascotti, María LauraIcon ; Juri Ayub, MaximilianoIcon
Fecha de publicación: 12/2020
Editorial: Nature Publishing Group
Revista: Scientific Reports
ISSN: 2045-2322
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Biología

Resumen

Ribosome inactivating proteins (RIPs) are RNA N-glycosidases that depurinate a specific adenine residue in the conserved sarcin/ricin loop of 28S rRNA. These enzymes are widely distributed among plants and bacteria. Previously, we have described for the first time RIP genes in mosquitoes belonging to the Culicidae family. We showed that these genes are derived from a single event of horizontal gene transfer (HGT) from a prokaryotic donor. Mosquito RIP genes are evolving under purifying selection, strongly suggesting that these toxins have acquired a functional role. In this work, we show the existence of two RIP encoding genes in the genome of the whitefly Bemisia tabaci, a hemiptera species belonging to the Aleyrodidae family distantly related to mosquitoes. Contamination artifacts were ruled out analyzing three independent B. tabaci genome databases. In contrast to mosquito RIPs, whitefly genes harbor introns and according to transcriptomic evidence are transcribed and spliced. Phylogeny and the taxonomic distribution strongly support that whitefly RIP genes are derived from an independent HGT event from a plant source. These results, along with our previous description of RIPs in Diptera, suggest that the acquired genes are functional in these insects and confer some fitness advantage.
Palabras clave: Ribosome inactivating proteins , Horizontal gene transfer , Whitefly , Bemisia tabaci
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/136709
URL: http://www.nature.com/articles/s41598-020-72267-1
DOI: http://dx.doi.org/10.1038/s41598-020-72267-1
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Articulos(IMIBIO-SL)
Articulos de INST. MULTIDICIPLINARIO DE INV. BIO. DE SAN LUIS
Citación
Lapadula, Walter Jesús; Mascotti, María Laura; Juri Ayub, Maximiliano; Whitefly genomes contain ribotoxin coding genes acquired from plants; Nature Publishing Group; Scientific Reports; 10; 15503; 12-2020; 1-5
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