• Phylogenetic analyses using Bayesian methods recovered a monophyletic grouping of all Dendrobium species (D. nobile, D. huoshanense, D. officinale, D. pendulum, D. strongylanthum and D. chrysotoxum). (plos.org)
  • I have been involved in several large analyses of seed plant/angiosperm relationships, beginning with a morphological analysis (Nixon et al. (cornell.edu)
  • We conducted maximum likelihood (ML), maximum parsimony (MP) and Bayesian (B) analyses on partial RNA polymerase largest (RPB1) and second largest subunit (RPB2) nucleotide sequences of 93 fusaria to infer the first comprehensive and well-supported phylogenetic hypothesis of evolutionary relationships within the genus and 20 of its near relatives. (usda.gov)
  • Our analyses confirm that with large amounts of sequence data, most deep-level relationships within the angiosperms can be resolved. (blogspot.com)
  • Phylogenetic relationships of these four new species were inferred from analyses of a combined dataset consisting of three genetic markers, viz. (pensoft.net)
  • In addition, phylogenetic analyses of a nuclear rDNA 28S D1-D2 domains (28S) dataset and analyses of a second dataset consisting of three genetic markers - nuc rDNA 28S D1-D2 domains (28S), nuc rDNA ITS1-5.8S-ITS2 ( ITS ), and translation elongation factor 1-alpha ( TEF1 ) - are performed to complement our morphological observations and place the newly described species in a molecular phylogenetic framework. (pensoft.net)
  • Methods Bayesian phylogenetic analyses of plastid and nuclear DNA sequences were used to estimate intertribal relationships and lineage divergence times in Myrtaceae. (edu.au)
  • Key Results Analyses of the sequence data provide a strongly supported phylogenetic hypothesis for Myrtaceae. (edu.au)
  • I especially enjoy examining these suites in a phylogenetic context and view that such analyses can give us enhanced insight into interspecific differences. (phylodiversity.net)
  • I am specialized in the study of floral development and anatomy, which are increasingly used as support for the molecular phylogeny in understanding the homology of characters for phylogenetic analyses and in the understanding of the underlying genetics of character expression. (rbge.org.uk)
  • 2009. Complete Generic-Level Phylogenetic Analyses of Palms (Arecaceae) with Comparisons of Supertree and Supermatrix Approaches. (morphobank.org)
  • Gene sequences form the primary basis for understanding the relationships among extant plant groups, but genetic data are unavailable from fossils to evaluate the affinities of extinct taxa. (nature.com)
  • Thus, in the absence of modern relatives yielding molecular information, FTIR spectroscopy provides valuable proxy biochemical data complementing morphological characters to distinguish fossil taxa and to help elucidate extinct plant relationships. (nature.com)
  • Increased sampling of both genes and taxa improves resolution of phylogenetic relationships within Magnoliidae, a large and early-diverging clade of angiosperms. (wikimedia.org)
  • In phylogenetic studies across angiosperms, at various taxonomic levels, polytomies have persisted despite efforts to resolve them by increasing sampling of taxa and loci. (frontiersin.org)
  • Previous studies based on a limited set of markers resolved relationships among Cyperus species using the C3 photosynthetic pathway, but not among C4 Cyperus clade taxa. (frontiersin.org)
  • The ideal DNA barcode would be a single locus that could be universally amplified and sequenced for a broad range of taxa, be easily aligned over large phylogenetic distances, and provide sufficient variation to reliably distinguish closely related species. (biomedcentral.com)
  • Since the phylogenetic relationships of the taxa in Aleurodiscus s.l., as well as in the Stereaceae at large, are not resolved, we adopt a broad and inclusive generic concept of Aleurodiscus for the new taxa presented in this study. (pensoft.net)
  • More specifically, we are doing research on the (1) life cycle and germination ecology of woody and herbaceous species of angiosperms, (2) biology, conservation, and geographical ecology of plant taxa endemic to cedar (limestone) glades of unglaciated eastern United States, and (3) plant geography of Kentucky. (uky.edu)
  • Evolutionary relationships in Cyperaceae have been studied mostly using Sanger sequencing until recently. (frontiersin.org)
  • Information regarding gene content, polycistronic transcription units, sequence insertion or deletion, transition or transversion, and nucleotide repeats may help resolve evolutionary relationships in the kingdom Plantae (Viridiplantae) 6 , 7 , 8 . (plos.org)
  • Unravelling evolutionary relationships between epifoliar Meliolaceae and angiosperms [J]. J Syst Evol, 2022, 60(1): 23-42. (jse.ac.cn)
  • In neither of these two examples does there seem to be much reason to be confident in any conclusions about evolutionary relationships, as the network in both cases is essentially an unresolved bush. (blogspot.com)
  • Furthermore, we show the strength in combining data from both kits to mitigate bias and provide a more robust result to resolve evolutionary relationships. (arborbiosci.com)
  • As we move through this diverse range of plants we discuss their evolutionary relationships and the adaptive significance of their key features, including the evolution of physiological and anatomical adaptations to different biomes. (monash.edu)
  • Establishing taxonomic and molecular phylogenetic relationships within A . sect. (jse.ac.cn)
  • and 3) the study of the phylogenetic and taxonomic relationships of the novelty to other plants. (missouribotanicalgarden.org)
  • Our studies of Cretaceous fossil flowers remain the most extensive, and I believe the most completely analyzed, of any angiosperm fossil flower sites, and provide the best view of the Late Cretaceous diversification of angiosperms into modern taxonomic groups. (cornell.edu)
  • Taxonomic and phylogenetic relationships with related species of sect. (jse.ac.cn)
  • The taxonomic implications of these patterns of relationships are discussed. (jse.ac.cn)
  • The power to resolve shallow-level relationships was tested using a summary species tree method and a concatenated maximum likelihood approach. (frontiersin.org)
  • Finally, we will extract DNA from the novelty and a small number of related species, amplify selected molecular markers for DNA sequencing, and conduct a phylogenetic analysis of the group. (missouribotanicalgarden.org)
  • 2011. Species relationships and farina evolution in the cheilanthoid fern genus Argyrochosma (Pteridaceae). (missouribotanicalgarden.org)
  • The relationships recovered among the representative orchid species from the four subfamilies, i.e. (plos.org)
  • To assess the ability of the proposed two-locus barcode to discriminate closely related species, we carried out a hierarchically structured set of comparisons within Viburnum , a clade of woody angiosperms containing ca. 170 species (some 70 of which are currently used in horticulture). (biomedcentral.com)
  • This synopsis represents a first step towards the aim of creating a global synthesis of the species diversity in the angiosperm order Caryophyllales integrating the work of numerous specialists around the world. (urosario.edu.co)
  • Background and Aims The angiosperm family Myrtaceae comprises 17 tribes with more than half of the estimated 5500 species being referred to the fleshy-fruited and predominantly rainforest associated Syzygieae and Myrteae. (edu.au)
  • The weedy species Chenopodium ficifolium serves as a useful diploid model for comparing the transition to flowering with the important tetraploid crop Chenopodium quinoa due to the close phylogenetic relationship. (cas.cz)
  • Thus, we have studied the germination ecology and ecophysiology of species from different habitats and biomes, and with different life cycle, life forms, and phylogenetic relationships. (uky.edu)
  • Aim The aim of this study was to further advance our understanding of the species-rich, and ecologically important angiosperm family Combretaceae to provide new insights into their evolutionary history. (bionomia.net)
  • Approximately 200 novel miRNAs are conserved in all eight selected angiosperm species, which considerably expands the current miRNA database. (biomedcentral.com)
  • 2023. High temperature frequently increases facilitation between aquatic foundation species: a global meta‐analysis of interaction experiments between angiosperms, seaweeds, and bivalves. (bionomia.net)
  • The angiosperm radiation hypothesis proposes that: - Q/A (Question and Answer) Sara Graham Test Answer Answer: certain primate traits were responses to the acquisition of fruit during the Cenozoic. (founderops.com)
  • Carpolestes 6.8.2: Major Hypotheses About Primate Origins Social Sci LibreTexts, 8.who developed the visual predation hypothesis, 9.Anthro Chap 9 Flashcards.pdf 1 The arboreal hypothesis, the angiosperm radiation hypothesis proposes that, 10+ super 8 by wyndham fort mitchell cincinnati area most standard, 9+ immortal way of life game most standard, 9+ bed bath and beyond makeup organizer most standard. (founderops.com)
  • A phylogenetic hypothesis and estimate divergence times for Myrtaceae is developed as a basis to explore the evidence for, and drivers of, elevated diversification rates among the fleshy-fruited tribes of Myrtaceae. (edu.au)
  • Noting the scale dependency of this hypothesis, more complex explanations may be required to explain diversification rate shifts occurring within the fleshy-fruited tribes, and the suggested phylogenetic hypothesis provides an appropriate framework for this undertaking. (edu.au)
  • We report these two new plastid genome sequences and make comparisons (within angiosperms, seed plants, or all photosynthetic lineages) to evaluate features such as the status of ycf15 and ycf68 as protein coding genes, the distribution of simple sequence repeats (SSRs) and longer dispersed repeats (SDR), and patterns of nucleotide composition. (biomedcentral.com)
  • We assembled a supermatrix consisting of 16 partitions, comprising DNA sequence data, plastid restriction fragment length polymorphism data, and morphological data for all genera, from which a highly resolved and well-supported phylogenetic tree was built despite abundant missing data. (morphobank.org)
  • Subtribal relationships in tribe Tradescantieae (Commelinaceae) based on molecular and morphological data. (wikipedia.org)
  • Our results reveal that similarities between the cuticular biochemical signatures of major plant groups (extant and fossil) are mostly consistent with recent phylogenetic hypotheses based on molecular and morphological data. (nature.com)
  • WebThus, it is suggested here that the multitude of resources available on the terminal branches of the newly evolved angiosperm, rain forest trees led to the morphological adaptations of 35 - Based on genetic analysis of living primates calibrated by the fossil record, it is estimated that apes and Old World monkeys diverged into separate lineages around: 36 - Which fossil group is characterized by an eye orbit fully enclosed by bone? (founderops.com)
  • My role in these collaborative studies has been to apply my knowledge of angiosperm diversity and identification (see teaching section) in preliminary fossil identifications, followed by intensive cladistic analysis of morphological or combined morphological/molecular datasets to accurately and reproducibly identify fossils. (cornell.edu)
  • Wiley, E. O. (1981) Phylogenetics: The Theory and Practice of Phylogenetic Systematics. (berkeley.edu)
  • Major systems of classification, plant groups, phylogenetic relationships and molecular systematics. (successcds.net)
  • We test the ability of two targeted sequencing kits to resolve relationships in the C4 Cyperus clade, the universal Angiosperms-353 kit and a Cyperaceae-specific kit. (frontiersin.org)
  • Premise Both universal and family-specific targeted sequencing probe kits are becoming widely used for reconstruction of phylogenetic relationships in angiosperms. (arborbiosci.com)
  • Conclusions The Angiosperms353 data set improved upon data filtering, and missing data played an important role in phylogenetic reconstruction. (arborbiosci.com)
  • 2023. The phylogenetic reconstruction of the Neotropical cycad genus Ceratozamia (Zamiaceae) reveals disparate patterns of niche evolution. (montgomerybotanical.org)
  • This phylogenetic framework, combined with seed dispersal traits, biome data and biogeographic ranges, allows the reconstruction of the biogeographical history of the group. (bionomia.net)
  • The large amount of genomic data now available and statistical tools to analyze them provide unprecedented power for phylogenetic inference. (frontiersin.org)
  • de Queiroz, K. and S. Poe (2001) Philosophy and phylogenetic inference: a comparison of likelihood and parsimony methods in the context of Karl Popper's writings on corroboration. (berkeley.edu)
  • We used maximum likelihood inference with a concatenated matrix of loci and multispecies-coalescence approaches to infer relationships in the family. (arborbiosci.com)
  • Despite ample taxon sampling, relationships in many genera remain poorly understood, hampered by diversification rates that outpace mutation rates in the loci used. (frontiersin.org)
  • Previous studies suggest that fleshy fruits have evolved separately in these lineages, whereas generally shifts in fruit morphology have been variously implicated in diversification rate shifts among angiosperms. (edu.au)
  • Rates of speciation, extinction and diversification were estimated based on phylogenetic data and fossil records through methods implemented in BAMM. (bionomia.net)
  • In this age of molecular taxonomy it is important to revisit flower morphology, as it contains a wealth of information that can be better understood in the new framework of relationships. (rbge.org.uk)
  • Angiosperm Phylogeny Website. (wikipedia.org)
  • Organised in a modern phylogenetic order (Angiosperm Phylogeny Group IV for flowering plants and equivalent systems for other groups), over 450 families are described in this illustrated encyclopedia, with full information relating to their characteristics, relationships, etymology, economic uses and distribution. (alpinegardensociety.net)
  • The Genealogical World of Phylogenetic Networks: When is there support for a large phylogeny? (blogspot.com)
  • Phylogenetic relationships shown are adapted from the Angiosperm Phylogeny Poster (2016) http://www2.biologie.fu-berlin.de/sysbot/poster/poster1.pdf . (plantfadb.org)
  • The Angiosperms353 data set resolved the phylogenetic backbone of Ochnaceae as equally well as the family specific data set. (arborbiosci.com)
  • Methods We use a target capture approach and the Angiosperms353 universal probes to reconstruct a robust dated phylogenetic tree for the family. (bionomia.net)
  • However, only rbcL and matK were used to infer the relationship because of the lack of availability of sequences of psbA-trnH, ITS and ITS2 representing the different generic segregates. (plantsjournal.com)
  • Notes indicate how extensively the respective genera have been studied in a phylogenetic context. (urosario.edu.co)
  • Here, we employed both methods to construct phylogenetic trees of all genera of palms (Arecaceae/Palmae), an iconic angiosperm family of great economic importance. (morphobank.org)
  • Aleurodiscus sichuanensis is reported from southwest China on angiosperms in montane environments. (pensoft.net)
  • Phylogenetic relationships in the Commelinaceae: I. A cladistic analysis of rbcL sequences and morphology. (wikipedia.org)
  • Phylogenetic studies in the Commelinaceae subfamily Commelinoideae inferred from nuclear ribosomal and chloroplast DNA sequences. (wikipedia.org)
  • In this paper we report the complete chloroplast genome sequences of the angiosperms Nuphar advena (Nymphaeaceae) and Ranunculus macranthus (Ranunculaceae). (biomedcentral.com)
  • Phylogenetic relationships within the Gentianales based on ndhF and rbcL sequences, with particular reference to the Loganiaceae. (wikimedia.org)
  • The last decades have seen great changes in our understanding of plant relationships based on molecular data. (rbge.org.uk)
  • two-locus data set (portions of RPB2 and ATP citrate lyase) did not resolve any strongly supported relationship among the eight basal-most lineages within the TFC. (usda.gov)
  • The carnivorous plants spread across five angiosperm lineages, five orders and evolved at least six times. (serenataflowers.com)
  • A detailed review of the literature of the past two decades shows that enormous progress has been made in understanding overall phylogenetic relationships in Caryophyllales. (urosario.edu.co)
  • Major questions I am currently interested in are the evolution of the flower in angiosperms, with special emphasis on the evolution of merism, the origin of the structural basis of core eudicot flowers (Pentapetalae) and monocots, and the origin and evolution of petals in angiosperms, particularly Caryophyllales. (rbge.org.uk)
  • Their evolution through time is described by means of finding patterns in structural development and phylogenetic relationships. (serenataflowers.com)
  • We assessed phylogenetic relationships in the family using target capture data and produced a dated phylogenetic tree to assess fruit dispersal modes and patterns of distribution. (bionomia.net)
  • This study aims to reconstruct the relationships between tropical rain forest shifts and global environmental changes through the patterns of historical biogeography of a pantropical family of monocots, the Zingiberaceae. (bionomia.net)
  • Main conclusions Integrating phylogenetic patterns with fossil records suggests that the Zingiberaceae dispersed to Asia through drift of the Indian Plate from Africa in the late Palaeocene. (bionomia.net)
  • Thus we add to the small number of genomes not representing monocots or crown eudicots, increasing our ability to compare genomes across all angiosperms and determine general characteristics. (biomedcentral.com)
  • The chemical signature of the cuticle of Czekanowskia (Leptostrobales) is strongly similar to that of Ginkgo leaves and supports a close evolutionary relationship between these groups. (nature.com)
  • This is the first comprehensive book to cover every vascular plant family in the world, including all families of lycopods, ferns, gymnosperms and angiosperms. (alpinegardensociety.net)
  • Written by three world-renowned authors with wide interests in plant relationships, horticulture and modern genetic approaches to the study of biodiversity, the descriptions are accompanied by a lavish selection of photographs, illustrations and maps. (alpinegardensociety.net)
  • The relationships between land plants, particularly the lower levels of the Bryophytes and the origins of the Angiosperms, has been a highly contested debate throughout the history of plant sciences. (nmmra.org)
  • Exploring Phylogenetic Relationships between Hundreds of Plant Fatty Acids Synthesized by Thousands of Plants. (plantfadb.org)
  • Topics cover evolutionary theory, the interpretation and use of phylogenetic trees in biodiversity research, plant form and function, and plant physiology. (monash.edu)
  • I have been examining relationships between plant physiological and anatomical traits. (phylodiversity.net)
  • Among soil microorganisms, arbuscular mycorrhizal (AM) fungi and bacterial Rhizobium can promote plant growth as well as control fungal diseases [ 2 ], suggesting that there is an interconnection of signaling pathways mediating root symbiotic and pathogenic interactions, and miRNAs are implicated in these biotic relationships. (biomedcentral.com)
  • What are the advantages and disadvantages of using DNA sequence data for assessing relationships between the major groups of land plants? (nmmra.org)
  • The introduction of molecular analysis of the relationships between these major groups, in the form of DNA sequence data, has revolutionised the subject in the last twenty years. (nmmra.org)
  • Robust and unequivocal interactions have been identified confirming the phylogenetic tree, although it's intricacies and temporal detail is still far from complete. (nmmra.org)
  • Networks and bootstraps as tree-support criteria ) that there is often a discrepancy between bootstrap support on a phylogenetic tree (performed as a data analysis) and the output of a network analysis (performed as an exploratory data analysis, EDA). (blogspot.com)
  • We explored phylogenetic informativeness and the impact of missing data on resolution and tree support. (arborbiosci.com)
  • Merging of data obtained with the two kits resulted in a well-supported phylogenetic tree. (arborbiosci.com)
  • Using known phylogenetic relationships within the grasses, we determined the ancestral branch-points where the losses occurred. (biomedcentral.com)
  • 3. Fossil history of angiosperms. (cornell.edu)
  • I have a long standing research program in fossil angiosperms, beginning with a review of Tertiary fossil oaks in my Ph.D. thesis, continuing with papers on the earliest fossil evidence of Fagaceae in the Tertiary, and continuing with studies of Cretaceous fossil flowers in collaboration with Crepet and Gandolfo (see publication list). (cornell.edu)
  • I also was invited to collaborate on an analysis of what may be the oldest angiosperm fossil flower, Archaefructus. (cornell.edu)
  • My background in this area includes several papers focusing on various theoretical issues in phylogenetic analysis, and software implementations of "user-friendly" programs for data visualization and analysis. (cornell.edu)
  • Davis, Nixon, and Little 2004), the original analysis of the "3-gene" angiosperm data set (Soltis et al. (cornell.edu)
  • Within the pantropical Ochnaceae, we show that with careful data filtering, universal kits are equally as capable in resolving intergeneric relationships as custom probe kits. (arborbiosci.com)
  • In this work, I am relating hydraulic safety and efficiency traits in Australian woody angiosperms between sites contrasting in nutrients and rainfall. (phylodiversity.net)
  • The uniparental inheritance and non-recombinant nature of cp genomes make them potentially useful tools for inferring evolutionary and ancient phylogenetic relationships. (plos.org)
  • In the majority of angiosperm chloroplast genomes two copies of a large inverted repeat (IR) of about 25 kb separate the remainder of the genome into two regions of unique DNA, the large (about 90 kb) and small (about 20 kb) single copy regions (LSC and SSC, respectively). (biomedcentral.com)
  • Therefore morphology as a basis for the construction of phylogenetic trees is a very low resolution and highly contestable method. (nmmra.org)
  • Phylogenetic information must be incorporated to properly evaluate relatedness in assessing the utility of barcoding loci. (biomedcentral.com)
  • The process of re-circumscribing families in order to be monophyletic appears to be largely complete and has led to the recognition of eight new families (Anacampserotaceae, Kewaceae, Limeaceae, Lophiocarpaceae, Macarthuriaceae, Microteaceae, Montiaceae and Talinaceae), while the phylogenetic evaluation of generic concepts is still well underway. (urosario.edu.co)
  • This study demonstrates that supertree and supermatrix methods can provide effective, explicit, and complimentary mechanisms for synthesizing disjointed phylogenetic evidence while emphasizing the need for further refinement of supertree methods. (morphobank.org)
  • The network simply shows that the different breeds can be recognized but that their relationships are not easy to resolve. (blogspot.com)
  • Furthermore, global warming is accelerating, but little is known about how interactions between co‐occurring FS vary with temperature.Shallow aquatic sedimentary systems are often dominated by three types of FS: slower‐growing clonal angiosperms, faster‐growing solitary seaweeds, and shell‐forming filter‐ and deposit‐feeding bivalves. (bionomia.net)
  • O'Keefe, F. R. and P. M. Sander (1999) Paleontological paradigms and inferences of phylogenetic pattern: a case study. (berkeley.edu)
  • The study focused on the relationship of A. indica , A. tagala , A. ringens and A. krisagathra with the different generic segregates. (plantsjournal.com)
  • To our knowledge, this is the first study documenting in-depth phylogenetic relationships within A . sect. (jse.ac.cn)
  • and (v) bivalve interactions with other FS were typically more positive at higher temperatures, but angiosperm‐seaweed interactions were not moderated by temperature.Synthesis: Despite variations in experimental and spatiotemporal conditions, the stronger positive interactions at higher temperatures suggest that facilitation, particularly involving bivalves, may become more important in a future warmer world. (bionomia.net)
  • This has had grave implications on the creation of phylogenetic trees. (nmmra.org)
  • Dawson initiated a more important question regarding the "roots" of relationships between plants in 1859. (nmmra.org)
  • [1] Gynoecium development and arrangement is important in systematic research and identification of angiosperms , but can be the most challenging of the floral parts to interpret. (wikipedia.org)
  • Floral organ position and numbers are generally highly conservative in evolution and are important indicators of systematic relationships. (rbge.org.uk)
  • Molecular systematic studies showed that they belong to Peniophoraceae, Russulales, but the inter- and intra-generic phylogenetic relationships are still unclear. (founderops.com)