@article{fdi:010057526,
  title = {{O}rigin, diversification, and classification of the {A}ustralasian genus dracophyllum (richeeae, ericaceae)},
  author = {{W}agstaff, {S}. {J}. and {D}awson, {M}. {I}. and {V}enter, {S}. and {M}unzinger, {J}{\'e}r{\^o}me and {C}rayn, {D}. {M}. and {S}teane, {D}. {A}. and {L}emson, {K}. {L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he genus {D}racophyllum {L}abill. ({E}ricaceae) has a fragmented distribution in {A}ustralasia, but reaches the greatest level of species richness and morphological diversity in {N}ew {Z}ealand. {W}e investigated evolutionary processes that contribute to this disparity in species richness by comparing {DNA} sequences from members of {D}racophyllum, its close relatives {R}ichea {L}abill. and {S}phenotoma {R}. {B}r. ex {S}weet (together constituting tribe {R}icheeae {C}rayn & {Q}uinn), along with more distant relatives in the {E}ricaceae. {W}e created complementary data sets for the chloroplast-encoded genes mat{K} and rbc{L}. {P}arsimony, {B}ayesian, and maximum likelihood analyses were conducted to assess the robustness of our phylogenetic inferences. {T}he results were largely congruent and, when analyzed in combination, provided greater resolution. {I}n our analyses, tribe {R}icheeae formed a monophyletic group that diverged during the {E}ocene (at least 33.3 million years ago [{M}a]) with a crown radiation during the {E}arly {M}iocene (at least 16.5 {M}a) that resulted in two disjunct lineages. {T}his date corresponds roughly to the onset of aridification in central {A}ustralia. {T}he southern {W}estern {A}ustralian genus {S}phenotoma formed an isolated evolutionary lineage, while {D}racophyllum and {R}ichea together formed a second lineage restricted to eastern {A}ustralia, {L}ord {H}owe {I}sland, {N}ew {C}aledonia, and {N}ew {Z}ealand. {T}he relationships of the {T}asmanian endemic, {D}. milliganii {H}ook. f., remain an enigma. {I}t was ambiguously placed as sister to {S}phenotoma or to the {D}racophyllum {R}ichea elude. {W}e recovered two distinct lineages, traditionally recognized as {R}ichea sect. {C}ystanthe ({R}. {B}r.) {B}enth. and {R}ichea sect. {D}racophylloides {B}enth., which were nested within {D}racophyllum. {T}he {L}ord {H}owe {I}sland endemic, {D}. fitzgeraldii {F}. {M}uell., emerged as sister to an eastern {A}ustralian clade of {D}racophyllum. {O}ur evidence suggests that the {N}ew {C}aledonian and {N}ew {Z}ealand species of {D}racophyllum dispersed from {A}ustralia; we document two independent episodes of long-distance dispersal in the {L}ate {M}iocene to {E}arly {P}liocene. {L}ow levels of sequence divergence suggest a rapid and recent species radiation in these two island archipelagos largely within the last three to six million years. {T}his radiation accompanied {P}liocene uplift of the {N}ew {Z}ealand {S}outhern {A}lps and episodes of glaciation during the {P}leistocene. {B}ecause {D}racophyllum is paraphyletic and {R}ichea is polyphyletic, the taxonomic circumscription of these genera requires revision.},
  keywords = {{A}daptive radiation ; angiosperm ; {A}ustralia ; biogeography ; classification ; diversification ; {D}racophyllum ; {E}pacridaceae ; epacrids ; {E}ricaceae ; island floras ; {L}ord {H}owe {I}sland ; mat{K} ; molecular clock ; molecular phylogenetics ; molecular sequence data ; molecular ; systematics ; {N}ew {C}aledonia ; {N}ew {Z}ealand ; phylogeny ; plant evolution ; rbc{L} ; {R}ichea ; speciation ; species richness ; {S}phenotoma ; {T}asmania},
  booktitle = {},
  journal = {{A}nnals of the {M}issouri {B}otanical {G}arden},
  volume = {97},
  numero = {2},
  pages = {235--258},
  ISSN = {0026-6493},
  year = {2010},
  DOI = {10.3417/2008130},
  URL = {https://www.documentation.ird.fr/hor/fdi:010057526},
}