@article{fdi:010059016,
  title = {{ASL}/{LBD} phylogeny suggests that genetic mechanisms of root initiation downstream of auxin are distinct in lycophytes and euphyllophytes},
  author = {{C}oudert, {Y}. and {D}ievart, {A}. and {D}roc, {G}. and {G}antet, {P}ascal},
  editor = {},
  language = {{ENG}},
  abstract = {{P}aleobotanical studies suggest that roots evolved at least twice independently during land plant diversification, once in lycophytes and once in euphyllophytes. {A}uxin promotes postembryonic root initiation in both groups but from different cell types. {I}n several euphyllophytes, such as {A}rabidopsis, rice, and maize, {AS}2/{LOB}-domain ({ASL}/{LBD}) proteins act directly downstream of auxin and are conserved elements necessary for root initiation. {I}t is currently unknown whether similar or different genetic mechanisms act downstream of auxin for root initiation in lycophytes and euphyllophytes. {W}e searched for {ASL}/{LBD} proteins in genome sequences spanning the tree of life to retrace their evolutionary history. {W}e performed a phylogenetic analysis of {ASL}/{LBD} proteins and mapped the functions of all characterized {ASL}/{LBD} onto the phylogenetic trees. {W}e identified a clade specifically associated with root development, which includes no lycophyte sequence. {T}his points toward the existence of distinct genetic mechanisms downstream of auxin for root initiation in lycophytes and euphyllophytes.},
  keywords = {},
  booktitle = {},
  journal = {{M}olecular {B}iology and {E}volution},
  volume = {30},
  numero = {3},
  pages = {569--572},
  ISSN = {0737-4038},
  year = {2013},
  DOI = {10.1093/molbev/mss250},
  URL = {https://www.documentation.ird.fr/hor/fdi:010059016},
}