@article{fdi:010055812,
  title = {{R}adiations and key innovations in an early branching angiosperm lineage ({A}nnonaceae; {M}agnoliales)},
  author = {{E}rkens, {R}. {H}. {J}. and {C}hatrou, {L}. {W}. and {C}ouvreur, {T}homas},
  editor = {},
  language = {{ENG}},
  abstract = {{B}iologists are fascinated by species-rich groups and have attempted to discover the causes for their abundant diversification. {C}omprehension of the causes and mechanisms underpinning radiations and detection of their frequency will contribute greatly to the understanding of the evolutionary origin of biodiversity and its ecological structure. {A} dated and well-resolved phylogenetic tree of {A}nnonaceae was used to study diversification patterns in the family in order to identify factors that drive speciation and the evolution of morphological (key) characters. {I}t was found that, except for {G}oniothalamus, the largest genera in the family are not the result of radiations. {F}urthermore, the difference in species numbers between subfamilies {A}nnonoideae (former long branch clade) and {M}almeoideae (former short branch clade) cannot be attributed to significant differences in the diversification rate. {M}ost of the speciation in {A}nnonaceae is not distinguishable from a random branching process (i.e. chance), and no special explanations are therefore necessary for the distribution of species richness across the major part of the phylogenetic tree for {A}nnonaceae. {O}nly for a small number of clades can key innovations be invoked to explain the elevated rate of diversification.},
  keywords = {adaptive radiation ; rate shift ; sister-group comparison ; stochastic ; branching pattern ; temporal method ; topological method},
  booktitle = {},
  journal = {{B}otanical {J}ournal of the {L}innean {S}ociety},
  volume = {169},
  numero = {1},
  pages = {117--134},
  ISSN = {0024-4074},
  year = {2012},
  DOI = {10.1111/j.1095-8339.2012.01223.x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010055812},
}