@article{fdi:010090098, title = {{M}etagenomics of {A}frican {E}mpogona and {T}ricalysia ({R}ubiaceae) reveals the presence of leaf endophytes}, author = {{V}erstraete, {B}. and {J}anssens, {S}. and {D}e {B}lock, {P}. and {A}sselman, {P}. and {M}endez, {G}. and {L}y, {S}. and {H}amon, {P}erla and {G}uyot, {R}omain}, editor = {}, language = {{ENG}}, abstract = {{B}ackground. {L}eaf symbiosis is a phenomenon in which host plants of {R}ubiaceae interact with bacterial endophytes within their leaves. {T}o date, it has been found in around 650 species belonging to eight genera in four tribes; however, the true extent in {R}ubiaceae remains unknown. {O}ur aim is to investigate the possible occurrence of leaf endophytes in the {A}frican plant genera {E}mpogona and {T}ricalysia and, if present, to establish their identity. {M}ethods. {T}otal {DNA} was extracted from the leaves of four species of the {C}offeeae tribe ({E}mpogona congesta, {T}ricalysia hensii, {T}. lasiodelphys, and {T}. semidecidua) and sequenced. {B}acterial reads were filtered out and assembled. {P}hylogenetic analysis of the endophytes was used to reveal their identity and their relationship with known symbionts. {R}esults. {A}ll four species have non-nodulated leaf endophytes, which are identified as {C}aballeronia. {T}he endophytes are distinct from each other but related to other nodulated and non-nodulated endophytes. {A}n apparent phylogenetic or geographic pattern appears to be absent in endophytes or host plants. {C}aballeronia endophytes are present in the leaves of {E}mpogona and {T}ricalysia, two genera not previously implicated in leaf symbiosis. {T}his interaction is likely to be more widespread, and future discoveries are inevitable.}, keywords = {{A}frica ; {B}acteria ; {B}urkholderia ; {C}aballeronia ; {C}offeeae ; {E}mpogona ; {E}ndophyte ; {L}eaf symbiosis ; {T}ricalysia ; {R}ubiaceae ; {AFRIQUE}}, booktitle = {}, journal = {{P}eer{J}}, volume = {11}, numero = {}, pages = {20e15778 [20 p.]}, ISSN = {2167-8359}, year = {2023}, DOI = {10.7717/peerj.15778}, URL = {https://www.documentation.ird.fr/hor/fdi:010090098}, }