Characterization Of Interspecific Gene Flows at The Genome-wide Level in a Natural Ecosystem The Massane Forest Reveals New Insights Into Horizontal Transfer In plants - Agropolis Accéder directement au contenu
Pré-Publication, Document De Travail (Preprint/Prepublication) Année : 2022

Characterization Of Interspecific Gene Flows at The Genome-wide Level in a Natural Ecosystem The Massane Forest Reveals New Insights Into Horizontal Transfer In plants

Résumé

Abstract Horizontal transfer (HT) refers to the exchange of genetic material between divergent species by mechanisms other than reproduction. In recent years, several studies have demonstrated HTs in eukaryotes, particularly in the context of parasitic relationships and in model species. However, very little is known about HT in natural ecosystems, especially those involving non-parasitic wild species, and the nature of the ecological relationships that promote these HTs. In this work, we conducted a pilot study investigating HTs by sequencing the genomes of 17 wild non-model species from a natural ecosystem, the Massane forest, located in southern France. To this end, we developed a new computational pipeline called INTERCHANGE that is able to characterize HTs at the whole genome level without prior annotation and directly in the raw sequencing reads. Using this pipeline, we identified 12 HT events, half of which occurred between lianas and trees. We found that only LTRs-retrotransposons and predominantly those from the Copia superfamily were transferred between these wild species. This study revealed a possible new route for HTs between non-parasitic plants and provides new insights into the genomic characteristics of horizontally transferred DNA in plant genomes.
Fichier principal
Vignette du fichier
2021.12.19.471934v2.full.pdf (10.24 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03852424 , version 1 (15-11-2022)

Identifiants

Citer

Emilie Aubin, Christel Llauro, Joseph Garrigue, Marie Mirouze, Olivier Panaud, et al.. Characterization Of Interspecific Gene Flows at The Genome-wide Level in a Natural Ecosystem The Massane Forest Reveals New Insights Into Horizontal Transfer In plants. 2022. ⟨hal-03852424⟩
98 Consultations
10 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More