Molecular phylogenetics and character evolution of morphologically diverse groups, Dendrobium section Dendrobium and allies

Takamiya, Tomoko; Wongsawad, Pheravut; Sathapattayanon, Apirada; Tajima, Natsuko; Suzuki, Shunichiro; Kitamura, Saki; Shioda, Nao; Handa, Takashi; Kitanaka, Susumu; Iijima, Hiroshi; Yukawa, Tomohisa

doi:10.1093/aobpla/plu045

Cited by 27 publications

(31 citation statements)

References 34 publications

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“…The results were consistent with those of previous studies (Clements, 2003(Clements, , 2006Burke et al, 2008;Xiang et al, 2013). Twelve major clades were recognized within the Asian group, and all of these clades were recognized by Xiang et al (2013) and Takamiya et al (2014). However, the relationships among these clades are not well resolved and show a similar level of resolution to previous results (Clements, 2003(Clements, , 2006Burke et al, 2008;Xiang et al, 2013).…”

Section: Phylogenetic Analysessupporting

confidence: 92%

“…() and Takamiya et al . (). However, the relationships among these clades are not well resolved and show a similar level of resolution to previous results (Clements, , ; Burke et al ., ; Xiang et al ., ).…”

Section: Resultssupporting

confidence: 76%

“…() and Takamiya et al . (). Biogeographical region abbreviations: A, Mainland Asia; B, Malesia; C, Australasia; D, circumpolar.…”

Section: Resultscontrasting

confidence: 57%

“…; Fig. S1 in Appendix S1) and also for other studies (Clements, , ; Burke et al ., ; Xiang et al ., ; Takamiya et al ., ).…”

Section: Discussionmentioning

confidence: 99%

“…The red star and orange star represent the root and fossil calibration node respectively (see Materials and methods). Clades I-XII represent the sections/clades recognized in Xiang et al (2013) and Takamiya et al (2014). Biogeographical region abbreviations: A, Mainland Asia; B, Malesia; C, Australasia; D, circumpolar.…”

Section: Discussionmentioning

confidence: 99%

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Biogeographical diversification of mainland Asian Dendrobium (Orchidaceae) and its implications for the historical dynamics of evergreen broad‐leaved forests

Xiao

Zhou

et al. 2016

Journal of Biogeography

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Aim Evergreen broad-leaved forests (EBLFs) occupy most tropical and subtropical regions of mainland Asia and exhibit high species diversity, productivity and richness. Understanding the historical dynamics of EBLFs is important for biodiversity conservation and regional carbon storage and cycling under global climate change. However, little is known about the historical dynamics of EBLFs in mainland Asia. Dendrobium, an epiphytic orchid genus found in EBLFs, was used to gain new insights of the historical establishment and extension of EBLFs in mainland Asia. Location Mainland Asia.Methods We sampled c. 80% of the currently recognized species of Dendrobium found in mainland Asia. A phylogeny was generated using maximum parsimony, maximum likelihood and Bayesian inference methods. A calibrated chronogram was obtained using a Bayesian relaxed-clock model approach. Biogeographical scenarios were investigated using the statistical dispersal-vicariance analysis and dispersal-extinction-cladogenesis methods. Ancestral states were constructed by mesquite and bayestraits, and diversification of Dendrobium was investigated by APE and LASER packages.Results Our results indicate that Asian Dendrobium was present on mainland Asia since the Oligocene, after which this genus diversified in this region and dispersed into higher elevations. The ancestral habit of Dendrobium was epiphytic and terrestrial and lithophytic habits each have multiple, recently independent origins.Main conclusions Our results support the hypothesis that EBLFs have been established in mainland Asia at least since the Oligocene and further suggest that the EBLFs of mainland Asia expanded into higher elevations prior to the late Cenozoic. The diversification of Asian Dendrobium coincided with a warmer climate during the late Oligocene and middle Miocene and the expansion of key groups (including Fagaceae, Lauraceae, Magnoliaceae and Theaceae) of EBLFs during the early Cenozoic.

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Section: Phylogenetic Analysessupporting

confidence: 92%

Section: Resultssupporting

confidence: 76%

“…() and Takamiya et al . (). Biogeographical region abbreviations: A, Mainland Asia; B, Malesia; C, Australasia; D, circumpolar.…”

Section: Resultscontrasting

confidence: 57%

“…; Fig. S1 in Appendix S1) and also for other studies (Clements, , ; Burke et al ., ; Xiang et al ., ; Takamiya et al ., ).…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Biogeographical diversification of mainland Asian Dendrobium (Orchidaceae) and its implications for the historical dynamics of evergreen broad‐leaved forests

Xiao

Zhou

et al. 2016

Journal of Biogeography

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Phylogenetics of Dendrochilum (Orchidaceae): Evidence of pronounced morphological homoplasy and predominantly centric endemism

Pedersen

Petersen

Gravendeel

et al. 2019

TAXON

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A phylogenetic hypothesis for the genus Dendrochilum s.l. (including Bracisepalum) is based on nucleotide sequences of the nuclear ribosomal ITS and two plastid regions (matK, ycf1). The trees based on parsimony analysis of the nrITS and plastid partitions, respectively, are largely congruent, the only strongly supported conflict being the exact position of D. arachnites. Maximum likelihood analysis of the combined molecular matrix resulted in a tree with very high topological congruence to the parsimony consensus tree and to a fossil‐calibrated Bayesian inference tree that was used for dating. Our results confirm that monophyly of Dendrochilum is only supported if Bracisepalum is included in the former. They also suggest that only two subgenera (Dendrochilum, Platyclinis) should be recognized, whereas all other subgenera and sections previously proposed on a morphological basis should be treated as synonyms of subg. Platyclinis. Indeed, mapping of five vegetative and nine floral characters of alleged systematic value, using DELTRAN and ACCTRAN optimization, demonstrates pronounced morphological homoplasy. Molecular time calibration dates the origin of the genus to the Miocene and contradicts the hypothesis that most extant Dendrochilum species did not evolve until the Holocene. Inferred phylogenetic relationships between extant species, in combination with previously identified hotspots of narrow endemism, suggest that species endemism in Dendrochilum is predominantly centric.

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Efficient Chromosome Doubling of an Interspecific Hybrid Dendrobium Stardust ‘Fire Bird’ by Treatment of Amiprofos-methyl to Protocorm-Like Body

Kondo

Phlaetita

Mii

et al. 2020

In Vitro Cell.Dev.Biol.-Plant

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Molecular phylogenetics and character evolution of morphologically diverse groups, Dendrobium section Dendrobium and allies

Cited by 27 publications

References 34 publications

Biogeographical diversification of mainland Asian Dendrobium (Orchidaceae) and its implications for the historical dynamics of evergreen broad‐leaved forests

Biogeographical diversification of mainland Asian Dendrobium (Orchidaceae) and its implications for the historical dynamics of evergreen broad‐leaved forests

Phylogenetics of Dendrochilum (Orchidaceae): Evidence of pronounced morphological homoplasy and predominantly centric endemism

Efficient Chromosome Doubling of an Interspecific Hybrid Dendrobium Stardust ‘Fire Bird’ by Treatment of Amiprofos-methyl to Protocorm-Like Body

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