75 results match your criteria: "Botanical Research Institute of Texas[Affiliation]"
New Phytol
December 2024
Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, 48109, USA.
While flowering plants have diversified in virtually every terrestrial clime, climate constrains the distribution of individual lineages. Overcoming climatic constraints may be associated with diverse evolutionary phenomena including whole genome duplication (WGD), gene-tree conflict, and life-history changes. Climatic shifts may also have facilitated increases in flowering plant diversification rates.
View Article and Find Full Text PDFPlants (Basel)
October 2024
Instituto de Biologia, Universidade Federal da Bahia, Salvador 40170-110, Bahia, Brazil.
We present a molecular phylogeny for the subtribe Ecliptinae (Asteraceae, Heliantheae) based on three plastid (, , and ) and two nuclear (nrITS and nrETS) markers. The results of the phylogenetic reconstruction were utilised as a topological constraint for a subsequent divergence dating analysis and ancestral range reconstructions. We sampled 41 species and 40 genera (72%) of Ecliptinae and two species of (as outgroups) to elucidate the generic relationships between the genera of this subtribe.
View Article and Find Full Text PDFMol Phylogenet Evol
December 2024
Botanical Research Institute of Texas, Fort Worth, TX, USA. Electronic address:
Commun Biol
September 2024
Department of Biology and Ted R. Bradley Herbarium, George Mason University, 4400 University Drive, Fairfax, Virginia, 22030, USA.
A seed recovered during archaeological excavations of a cave in the Judean desert was germinated, with radiocarbon analysis indicating an age of 993 CE- 1202 calCE. DNA sequencing and phylogenetic analysis identified the seedling as belonging to the angiosperm genus Commiphora Jacq., sister to three Southern African Commiphora species, but unique from all other species sampled to date.
View Article and Find Full Text PDFNat Ecol Evol
October 2024
Instituto Biósfera and Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Ecuador.
Am J Bot
September 2024
Department of Biology, University of Florida, Gainesville, 32611, Florida, USA.
Premise: Reticulate evolution, often accompanied by polyploidy, is prevalent in plants, and particularly in the ferns. Resolving the resulting non-bifurcating histories remains a major challenge for plant phylogenetics. Here, we present a phylogenomic investigation into the complex evolutionary history of the vining ferns, Lygodium (Lygodiaceae, Schizaeales).
View Article and Find Full Text PDFISME Commun
January 2024
Integrative Biotechnology, University of Applied Sciences Kaiserslautern, Pirmasens, Germany.
Lichens are remarkable and classic examples of symbiotic organisms that have fascinated scientists for centuries. Yet, it has only been for a couple of decades that significant advances have focused on the diversity of their green algal and/or cyanobacterial photobionts. Cyanolichens, which contain cyanobacteria as their photosynthetic partner, include up to 10% of all known lichens and, as such, studies on their cyanobionts are much rarer compared to their green algal counterparts.
View Article and Find Full Text PDFPlant Methods
June 2024
Department of Chemistry, Iowa State University, Ames, IA, 50011, USA.
Background: There is a growing demand for fast and reliable plant biomolecular analyses. DNA extraction is the major bottleneck in plant nucleic acid-based applications especially due to the complexity of tissues in different plant species. Conventional methods for plant cell lysis and DNA extraction typically require extensive sample preparation processes and large quantities of sample and chemicals, elevated temperatures, and multiple sample transfer steps which pose challenges for high throughput applications.
View Article and Find Full Text PDFBMC Plant Biol
June 2024
School of Pharmaceutical Sciences, Yunnan Key Laboratory of Pharmacology for Natural Products, Yunnan College of Modern Biomedical Industry, Kunming Medical University, Kunming, 650500, Yunnan, China.
Background: The influence of native secondary succession associated with anthropogenic disturbance on the biodiversity of the forests in subtropical China remains uncertain. In particular, the evolutionary response of small understory shrubs, particularly pioneer species inhabiting continuously disturbed habitats, to topographic heterogeneity and climate change is poorly understood. This study aimed to address this knowledge gap by focusing on the Gaultheria crenulata group, a clade of small pioneer shrubs in subtropical China.
View Article and Find Full Text PDFMol Phylogenet Evol
August 2024
School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China. Electronic address:
Appl Plant Sci
April 2024
Independent researcher Kailua-Kona Hawaii USA.
Premise: Traditional moist chamber cultures (MCs) prepared in aseptic laboratory environments using sterile Petri dishes are commonly used to quantify the microbiota of rough-bark tree species and woody vines. MCs are typically expensive and may be difficult to make, so a less expensive option made from easily available supplies was developed. These cost-friendly MCs were compared with standard laboratory methods to demonstrate their efficacy.
View Article and Find Full Text PDFAppl Plant Sci
January 2024
Department of Biological Sciences Virginia Tech Blacksburg Virginia USA.
Premise: Among the slowest steps in the digitization of natural history collections is converting imaged labels into digital text. We present here a working solution to overcome this long-recognized efficiency bottleneck that leverages synergies between community science efforts and machine learning approaches.
Methods: We present two new semi-automated services.
Am J Bot
July 2023
Department of Biological Sciences, Wichita State University, 537 Hubbard Hall, Wichita, Kansas, 67260, USA.
Premise: The phylogenetic relationships among the ca. 138 species of goldenrods (Solidago; Asteraceae) have been difficult to infer due to species richness, and shallow interspecific genetic divergences. This study aims to overcome these obstacles by combining extensive sampling of goldenrod herbarium specimens with the use of a custom Solidago hybrid-sequence capture probe set.
View Article and Find Full Text PDFSyst Biol
June 2023
Department of Biology, Duke University, Durham, NC 27708, USA.
Prokaryotic genomes are often considered to be mosaics of genes that do not necessarily share the same evolutionary history due to widespread horizontal gene transfers (HGTs). Consequently, representing evolutionary relationships of prokaryotes as bifurcating trees has long been controversial. However, studies reporting conflicts among gene trees derived from phylogenomic data sets have shown that these conflicts can be the result of artifacts or evolutionary processes other than HGT, such as incomplete lineage sorting, low phylogenetic signal, and systematic errors due to substitution model misspecification.
View Article and Find Full Text PDFMol Phylogenet Evol
May 2023
Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AE, United Kingdom.
The angiosperm family Primulaceae is morphologically diverse and distributed nearly worldwide. However, phylogenetic uncertainty has obstructed the identification of major morphological and biogeographic transitions within the clade. We used target capture sequencing with the Angiosperms353 probes, taxon-sampling encompassing nearly all genera of the family, tree-based sequence curation, and multiple phylogenetic approaches to investigate the major clades of Primulaceae and their relationship to other Ericales.
View Article and Find Full Text PDFAnal Chim Acta
March 2023
Department of Chemistry, Iowa State University, Ames, IA, 50011, USA. Electronic address:
The isolation of high-quality plant genomic DNA is a major prerequisite in many plant biomolecular analyses involving nucleic acid amplification. Conventional plant cell lysis and DNA extraction methods involve lengthy sample preparation procedures that often require large amounts of sample and chemicals, high temperatures and multiple liquid transfer steps which can introduce challenges for high throughput applications. In this study, a simple, rapid, miniaturized ionic liquid (IL)-based extraction method was developed for the isolation of genomic DNA from milligram fragments of Arabidopsis thaliana plant tissue.
View Article and Find Full Text PDFPLoS One
January 2023
Department of Botany and Geology and Geophysics, University of Wyoming, Laramie, Wyoming, United States of America.
Many tropical wet forests are species-rich and have relatively even species frequency distributions. But, dominance by a single canopy species can also occur in tropical wet climates and can remain stable for centuries. These are uncommon globally, with the African wet tropics supporting more such communities than the Neotropics or Southeast Asia.
View Article and Find Full Text PDFAm J Bot
October 2022
Department of Biology, Duke University, Durham, North Carolina, 27708, USA.
Zootaxa
July 2022
Gallformers.org, Austin, TX, 78722, U.S.A. .
A new species of the genus Druon Kinsey, 1937, D. laceyi Zhang, Sasan OKennon sp. nov.
View Article and Find Full Text PDFAm J Bot
October 2022
Department of Biology, 876 Newell Drive, University of Florida, Gainesville, FL, 32611, USA.
Premise: The historical biogeography of ferns is typically expected to be dominated by long-distance dispersal due to their minuscule spores. However, few studies have inferred the historical biogeography of a large and widely distributed group of ferns to test this hypothesis. Our aims were to determine the extent to which long-distance dispersal vs.
View Article and Find Full Text PDFMol Phylogenet Evol
October 2022
United States National Herbarium, Department of Botany, National Museum of Natural History, Smithsonian Institution, MRC 166, Washington, DC, 20560, USA.
Understanding the evolution of the tribe Gochnatieae (Compositae) has been the subject of considerable effort in the past decade. This is due to the key position of this tribe in the phylogeny of the sunflower family and the corresponding implications for biogeographic and morphological evolution of Compositae. Previous studies have confirmed the monophyly of this tribe as well as most of the genera that belong to it.
View Article and Find Full Text PDFAnn Bot
September 2022
Institute of Systematic Botany and Ecology, Ulm University, D-89081 Ulm, Germany.
Background And Aims: Ferns are the second largest group of vascular plants and are distributed nearly worldwide. Although ferns have been integrated into some comparative ecological studies focusing on hydathodes, there is a considerable gap in our understanding of the functional anatomy of these secretory tissues that are found on the vein endings of many fern leaves. In this study, we aimed to investigate the phylogenetic distribution, structure and function of fern hydathodes.
View Article and Find Full Text PDFPlant Methods
March 2022
Department of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, IA, 50011, USA.
Background: Plant DNA isolation and purification is a time-consuming and laborious process relative to epithelial and viral DNA sample preparation due to the cell wall. The lysis of plant cells to free intracellular DNA normally requires high temperatures, chemical surfactants, and mechanical separation of plant tissue prior to a DNA purification step. Traditional DNA purification methods also do not aid themselves towards fieldwork due to the numerous chemical and bulky equipment requirements.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
January 2022
Florida Museum of Natural History, University of Florida, Gainesville, FL 32611.
Green plants play a fundamental role in ecosystems, human health, and agriculture. As de novo genomes are being generated for all known eukaryotic species as advocated by the Earth BioGenome Project, increasing genomic information on green land plants is essential. However, setting standards for the generation and storage of the complex set of genomes that characterize the green lineage of life is a major challenge for plant scientists.
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