@article{fdi:010090570,
  title = {{L}ow- frequency somatic mutations are heritable in tropical trees {D}icorynia guianensis and {S}extonia rubra},
  author = {{S}chmitt, {S}. and {H}euret, {P}. and {T}roispoux, {V}. and {B}eraud, {M}. and {C}azal, {J}. and {C}hancerel, É and {C}ravero, {C}. and {G}uichoux, {E}. and {L}epais, {O}. and {L}oureiro, {J}. and {M}arande, {W}. and {M}artin-{D}ucup, {O}. and {V}incent, {G}r{\'e}goire and {C}have, {J}. and {P}lomion, {C}. and {L}eroy, {T}. and {H}euertz, {M}. and {T}ysklind, {N}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}omatic mutations potentially play a role in plant evolution, but common expectations pertaining to plant somatic mutations remain insufficiently tested. {U}nlike in most animals, the plant germline is assumed to be set aside late in development, leading to the expectation that plants accumulate somatic mutations along growth. {T}herefore, several predictions were made on the fate of somatic mutations: mutations have generally low frequency in plant tissues; mutations at high frequency have a higher chance of intergenerational transmission; branching topology of the tree dictates mutation distribution; and exposure to {UV} (ultraviolet) radiation increases mutagenesis. {T}o provide insights into mutation accumulation and transmission in plants, we produced two high- quality reference genomes and a unique dataset of 60 high- coverage whole- genome sequences of two tropical tree species, {D}icorynia guianensis ({F}abaceae) and {S}extonia rubra ({L}auraceae). {W}e identified 15,066 de novo somatic mutations in {D}. guianensis and 3,208 in {S}. rubra, surprisingly almost all found at low frequency. {W}e demonstrate that 1) low- frequency mutations can be transmitted to the next generation; 2) mutation phylogenies deviate from the branching topology of the tree; and 3) mutation rates and mutation spectra are not demonstrably affected by differences in {UV} exposure. {A}ltogether, our results suggest far more complex links between plant growth, aging, {UV} exposure, and mutation rates than commonly thought.},
  keywords = {somatic mutations ; tree crown ; mutation transmission ; {GUYANE} {FRANCAISE} ; {AMAZONIE} ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{P}roceedings of the {N}ational {A}cademy of {S}ciences of the {U}nited {S}tates of {A}merica},
  volume = {121},
  numero = {10},
  pages = {e2313312121 [7 ]},
  ISSN = {0027-8424},
  year = {2024},
  DOI = {10.1073/pnas.2313312121},
  URL = {https://www.documentation.ird.fr/hor/fdi:010090570},
}