@article{PAR00023996, title = {{P}hylogenomics of the palm tribe {L}epidocaryeae ({C}alamoideae : {A}recaceae) and description of a new species of {M}auritiella}, author = {{J}imenez, {M}. {F}. {T}. and {P}rata, {E}. {M}. {B}. and {Z}izka, {A}. and {C}ohn-{H}aft, {M}. and de {O}liveira, {A}. {V}. {G}. and {E}milio, {T}. and {C}hazot, {N}. and {C}ouvreur, {T}homas and {K}amga, {S}. {M}. and {S}onke, {B}. and {C}ano, {A}. and {C}ollevatti, {R}. {G}. and {K}uhnhauser, {B}. {G}. and {B}aker, {W}. {J}. and {A}ntonelli, {A}. and {B}acon, {C}. {D}.}, editor = {}, language = {{ENG}}, abstract = {{T}he palm tribe {L}epidocaryeae ({A}recaceae) comprises seven genera and 51 currently accepted species that are distributed in lowland tropical forests and savannas across {A}frica and the {A}mericas. {S}ubtribal relationships within {L}epidocaryeae have been a persistent challenge, limiting our understanding of its systematics, morphology, and biogeography. {S}everal aspects make the tribe an ideal system to study plant evolution and diversity: it is well-represented in the fossil record as a prolific pollen producer, its continental diversity contradicts common biodiversity patterns of lower species richness in {A}frica in comparison to {S}outh {A}merica, and it contains one of the most abundant {A}mazonian tree species, {M}auritia flexuosa. {H}ere, we investigated the systematics of the tribe by sampling 122 individuals representing 42 species (82% of the tribe), using target sequence capture. {W}e recovered nearly 10,000 single nucleotide polymorphisms from nuclear and plastid {DNA} across 146 target sequences to separately infer a phylogenomic tree. {O}ur results strongly support inter-generic and inter-specific relationships, where a majority of nodes were resolved with over 90% bootstrap support. {W}e also identify strong phylogenetic support for the recognition of a new species from central and south {A}mazonia, {M}auritiella disticha. {T}he distichous phyllotaxy is diagnostic of the species within the genus. {R}are and currently only known from the middle-lower {M}adeira {R}iver basin in the state of {A}mazonas, {B}razil, {M}. disticha is restricted to open vegetation and forest edges growing in white sand habitats with saturated or well-drained soils. {O}ur preliminary red list assessment suggests its threatened status to be vulnerable ({VU}). {W}e use our phylogenomic inference to define and contextualize systematic relationships in the tribe, and present a formal species description.}, keywords = {{A}frica ; {A}mazonia ; {P}almae ; phylogenomics ; {AFRIQUE} ; {AMERIQUE} {DU} {SUD} ; {AMAZONIE}}, booktitle = {}, journal = {{S}ystematic {B}otany}, volume = {46}, numero = {3}, pages = {863--874}, ISSN = {0363-6445}, year = {2021}, DOI = {10.1600/036364421x16312067913543}, URL = {https://www.documentation.ird.fr/hor/{PAR}00023996}, }