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Journal article
Characterization of sequence variability hotspots in Cranichideae plastomes (Orchidaceae, Orchidoideae)
This study reports complete plastome sequences for six species of Neotropical Cranichideae and focuses on identification of the most variable regions (hotspots) in this group of orchids. These structure of these six plastomes is relatively conserved, exhibiting lengths ranging between 142,599 to 154,562 bp with 36.7% GC on average and...Smidt, Eric de Camargo ; Páez, Michelle Zavala ; Vieira, Leila do Nascimento ; Viruel, Juan ; de Baura, Valter Antônio …
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Journal article
Ninety-three new combinations in Euploca for species of Heliotropium section Orthostachys (Boraginaceae sensu APG)
Many new combinations are needed in Euploca, previously regarded as Heliotropium section Orthostachys, to correspond with results of our forthcoming, world-wide, molecular phylogenetic analysis. We also need these names for our many δ13C determinations that identify many Euploca species exhibiting C4 photosynthesis and show that other Euploca species are not...Frohlich, Michael W. ; Thulin, Mats ; Chase, Mark W.
carbon assimilation systems, Eudicots, Australia, and Heliotropiaceae
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Journal article
Comparative Plastid Genomics of Neotropical Bulbophyllum (Orchidaceae; Epidendroideae)
Pantropical Bulbophyllum, with ∼2,200 species, is one of the largest genera in Orchidaceae. Although phylogenetics and taxonomy of the ∼60 American species in the genus are generally well understood, some species complexes need more study to clearly delimit their component species and provide information about their evolutionary history. Previous research... -
Journal article
Expansion of Calanthe to include the species of Cephalantheropsis, Gastrorchis and Phaius (Collabieae; Orchidaceae).
Chase, Mark W. ; Christenhusz, Maarten J. M. ; Schuiteman, André
Pantropical orchid genera, orchid classification, Monocots, Epidendroidae, Calanthe, Orchid classification, and Monocots
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Journal article
Plastid phylogenomics of Pleurothallidinae (Orchidaceae): Conservative plastomes, new variable markers, and comparative analyses of plastid, nuclear, and mitochondrial data.
We present the first comparative plastome study of Pleurothallidinae with analyses of structural and molecular characteristics and identification of the ten most-variable regions to be incorporated in future phylogenetic studies. We sequenced complete plastomes of eight species in the subtribe and compared phylogenetic results of these to parallel analyses of... -
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Journal article
Diversification in Qinghai-Tibet Plateau: Orchidinae (Orchidaceae) clades exhibiting pre-adaptations play critical role.
Lai, Yang-Jun ; Han, Yu ; Schuiteman, André ; Chase, Mark W. ; Xu, Song-Zhi …
Diversification, Herminium, Orchidoideae, Pre-adaptation, Dispersal, Platanthera, and Habenaria
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Journal article
Repetitive DNA Restructuring Across Multiple Nicotiana Allopolyploidisation Events Shows a Lack of Strong Cytoplasmic Bias in Influencing Repeat Turnover
Allopolyploidy is acknowledged as an important force in plant evolution. Frequent allopolyploidy in Nicotiana across different timescales permits the evaluation of genome restructuring and repeat dynamics through time. Here we use a clustering approach on high-throughput sequence reads to identify the main classes of repetitive elements following three allotetraploid events,...
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