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2017
This poster describes results of a phylogenetic study on Asian Spiranthes species. Asian species used in the study are Spiranthes hongkongensis, Spiranthes sinensis, Spiranthes nivea. From our results a new species Spiranthes himalayensis has been described which is probably a paternal progenitor of the allopolyploid S. hongkongensis. Using two calibration methods, the dispersal of Spiranthes into Asia was found to be around 5 MYA.
Botanical Journal of the Linnean Society
Phylogenetic systematics of subtribe Spiranthinae (Orchidaceae: Orchidoideae: Cranichideae) based on nuclear and plastid DNA sequences of a nearly complete generic sampleBotanical Journal of the Linnean Society
2018-Phylogenetic systematics of subtribe Spiranthinae (Orchidaceae: Orchidoideae: Cranichideae) based on nuclear and plastid DNA sequences of a nearly complete generic sample2018 •
Subtribe Spiranthinae is the most species-rich lineage of terrestrial Neotropical orchids, encompassing > 500 species and 40 genera. We conducted maximum parsimony and maximum likelihood phylogenetic analyses of DNA sequence data of plastid matK-trnK and trnL-trnF and nuclear ribosomal ITS sequences for 36 genera and 182 species of Spiranthinae plus appropriate outgroups. The results strongly support monophyly of Spiranthinae (minus Discyphus, Discyphinae and Galeottiella, Galeottiellinae) and five major lineages, namely monospecific Cotylolabium (sister to the remaining Spiranthinae) and the Eurystyles, Pelexia, Spiranthes and Stenorrhynchos clades. Eighteen of the 27 genera of Spiranthinae for which more than one species was included in our analyses are monophyletic. Paraphyly of large genera, such as Cyclopogon and Sarcoglottis, resulted from segregation of particular species or groups of species exhibiting minor modifications of structures directly involved in pollination (e.g. nectary, rostellum and viscidium). Conversely, polyphyly has resulted from convergent evolution of floral attributes in distantly related species (e.g. Mesadenus). Some of the morphological characters used traditionally for generic delimitation and in nonmolecular cladistic analyses of Spiranthinae are discussed against the evolutionary framework set by our molecular trees, emphasizing putative synapomorphies and problems derived from inappropriate character coding or incorrect homology assessments. Our ancestral area analysis indicates that Spiranthinae originated in eastern South America, with subsequent migrations and secondary radiations in Mesoamerica and North America, plus a derived migration from the latter region to the Old World (Spiranthes).
Phytotaxa
Phylogenetic reassessment of Specklinia and its allied genera in the Pleurothallidinae (Orchidaceae)2016 •
The phylogenetic relationships within Specklinia (Pleurothallidinae; Orchidaceae) and related genera are re-evaluated using Bayesian analyses of nrITS and chloroplast matK sequence data of a wide sampling of species. Specklinia is found paraphyletic in the DNA based trees, with species alternatively assigned to Muscarella proven distinct, monophyletic and easily recognizable. Specklinia as such includes about 100 morphologically highly diverse species. Their phenotypic differences have prompted the creation of up to eleven generic names within this relatively small group. Here we show not only that these morphologically divergent species are closely related, but also that they can still be recognized by certain conserved morphological traits. The genera Acostaea, Areldia, Empusella, Cucumeria, Gerardoa, Pseudoctomeria, Sarcinula, Sylphia, Tribulago and Tridelta are found embedded within Specklinia, and therefore reduced under the synonymy of the latter. Specklinia is confirmed as si...
Harvard Papers in Botany
Spiranthes Sunii Boufford & Wenheng Zhang,Sp. Nov.; A New Rheophytic Orchid from Gansu Province, China2008 •
2019 •
ABSTRACTPREMISECryptic sympatric speciation occurs when closely related species arises with no geographic or spatial isolation. Since cryptic species can not usually be detected when investigations are based exclusively on classical plant taxonomy, molecular markers and integrative taxonomy are important tools to elucidate the identity of cryptic taxa.METHODSIn this paper we aimed to provide a detailed investigation based on molecular data and experimental taxonomy conducted on populations of a plant model occurring inside mesophytic forests and a supposed cryptic sympatric species that is found in marshy areas. Furthermore, a phylogeny was reconstructed by using nrDNA and cpDNA sequences in order to ascertain the position of both sympatric species within Liparis. The divergence among sequences of the putative cryptic sympatric species and related taxa was also verified based on DNA barcoding.KEY RESULTSOur results reveal cryptic sympatric speciation in the orchid genus Liparis. Dif...
American Journal of Botany
Origin and Conservation Genetics of the Threatened Ute Ladies'-Tresses, Spiranthes diluvialis (Orchidaceae)2001 •
2004 •
2021 •
2014 •
2015 •
Türk Oftalmoloji Dergisi
Evaluation of Visual Outcomes in Patients Implanted with Acri.LISA 356D Multifocal Intraocular Lens2011 •
Daffodil International University Journal of Business and Entrepreneurship
Building Dynamic Capability in Time of Uncertainty through Organisational Learning2022 •
2015 •
Parasitology Research
Antileishmanial activity of imidothiocarbamates and imidoselenocarbamates2010 •
2015 •
Revista geológica de Chile
El género Cymatoceras (Nautilida) en el Cretácico Inferior de la Cuenca de Atacama, norte de Chile2004 •
Physical Review D
Contribution of neutral pseudoscalar mesons to aμHLbL within a Schwinger-Dyson equations approach to QCD2020 •
Revista Brasileira de Nutrição Esportiva
Frequência do consumo alimentar de praticantes de corrida categoria amador na cidade de Teresina-PI2019 •
2022 •
International Journal of Research in Engineering and Technology
DR.MOBI - a Medical Suggestor in Your Hand2013 •
Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy
Life-Course Influence of Adolescent Behaviour Problems on Type 2 Diabetes in Midlife: Results from 1958 British Birth Cohort Study2022 •
Journal of Personalized Medicine
Pharmacogenomic Profile of Amazonian Amerindians2013 •
Brazilian Journal of Clinical Medicine and Review
The role of medial prefrontal cortex in cognition, aging and Parkinson diseaseSudan Medical Journal
Ahmed Hashim Bey Al Baghdadi the Patron of Medical Students = أحمد هاشم البغدادي الأب الروحي لطلاب الطب2013 •
Journal of Computational and Applied Mathematics
Numerical algorithms for simulations of a traffic model on road networks2007 •
IET Renewable Power Generation
Earth fault distance estimation using travelling waves provided with triacs‐based reclosing in distribution networks2021 •
Frontiers in Marine Science
Past, Present and Future Eutrophication Status of the Baltic Sea2019 •
Sid Surveswaran