A5006391906- Plant Diversity and Evolution
- Plant and Fungal Species Descriptions
- Genetic diversity and population structure
- Plant and animal studies
- Genomics and Phylogenetic Studies
- Plant Taxonomy and Phylogenetics
- Plant Reproductive Biology
- Species Distribution and Climate Change
- Botany and Plant Ecology Studies
- Genetic and phenotypic traits in livestock
- Chromosomal and Genetic Variations
- Plant Ecology and Taxonomy Studies
- Plant Pathogens and Fungal Diseases
- Ecology and Vegetation Dynamics Studies
- Plant Parasitism and Resistance
- Plant Molecular Biology Research
- Plant biochemistry and biosynthesis
- Genetic Mapping and Diversity in Plants and Animals
- Phytochemistry and Biological Activities
- Plant Gene Expression Analysis
- Photosynthetic Processes and Mechanisms
- Fish Ecology and Management Studies
- Mycorrhizal Fungi and Plant Interactions
- Botany, Ecology, and Taxonomy Studies
- Ruminant Nutrition and Digestive Physiology
Cornell University
2020-2025
University of California, Riverside
2017-2024
Ithaca College
2021-2024
Universidad de Guadalajara
2024
University of Florida
2011-2018
Florida Museum of Natural History
2014-2018
American Museum of Natural History
2008-2012
University of Kansas
2008-2011
École Polytechnique Fédérale de Lausanne
1978-1985
Polyploidy or whole-genome duplication (WGD) pervades the evolutionary history of angiosperms. Despite extensive progress in our understanding WGD, role these events promoting diversification is still not well understood. We seek to clarify possible association between WGD and rates flowering plants.Using a previously published phylogeny spanning all land plants (31,749 tips) inferred from analyses 1000 Plants (1KP) transcriptome data, we analyzed WGDs following numerous across used stepwise...
ABSTRACT An experiment with 25 dairy cows was performed to investigate the effects of different energy intakes on food intake, performance and blood hormone metabolite levels during last 70 days pregnancy first 125 after parturition. Compared animals fed ad libitum before parturition, only according requirements same time showed no decrease intake at calving. Cows a restricted level also faster increase in smaller deficiency onset lactation weight loss Peak milk yield lower, but peak...
Abstract This article documents the addition of 512 microsatellite marker loci and nine pairs Single Nucleotide Polymorphism (SNP) sequencing primers to Molecular Ecology Resources Database. Loci were developed for following species: Alcippe morrisonia , Bashania fangiana, fargesii Chaetodon vagabundus Colletes floralis Coluber constrictor flaviventris Coptotermes gestroi Crotophaga major Cyprinella lutrensis Danaus plexippus Fagus grandifolia Falco tinnunculus Fletcherimyia fletcheri,...
Moss sex chromosomes retain thousands of broadly expressed genes despite millions years suppressed recombination.
Evolutionary convergence is one of the most striking examples adaptation driven by natural selection. However, genomic evidence for convergent to extreme environments remains scarce. Here, we assembled reference genomes two alpine plants, Saussurea obvallata (Asteraceae) and Rheum alexandrae (Polygonaceae), with 37,938 61,463 annotated protein-coding genes. By integrating an additional five genomes, elucidated underlying high-altitude in plants. Our results detected contractions...
Abstract The genus Corydalis , with ca. 530 species, has long been considered taxonomically challenging because of its great variability. Previous molecular analyses, based on a few markers and incomplete taxonomic sampling, were clearly inadequate to delimit sections subgenera. We have performed phylogenetic analyses related taxa, using 65 shared protein‐coding plastid genes from 313 accessions (including 280 samples 226 species ) 152 universal low‐copy nuclear 296 271 covering all 42...
We present approaches used to generate long-read Nanopore sequencing reads for the Liliales and demonstrate how modifications standard protocols directly impact read length total output. The goal is help those interested in generating data determine which steps may be necessary optimizing output results.
Abstract The angiosperm family Cactaceae, a member of the Caryophyllales, is large and diverse group stem succulents comprising 1,438–1,870 species within approximately 130 genera predominantly distributed from northern Canada to Patagonia. Four centers diversity Central North America (Chihuahua, Puebla‐Oaxaca, Sonora‐Sinaloan, Jalisco) three South (Southern Andes, Caatinga, Mara Atlantica) have played pivotal role in disbursing cacti around globe. Mexico considered richest area with close...
Differentiated epidermal cells such as trichomes and conical perform numerous essential functions in plant biology are important for our understanding of developmental patterning cell shape regulation. Many also commercially significant, cotton fibers that secrete pharmaceutically useful or herbivore-deterring compounds. Here, we focus on the phylogeny evolution subgroup 9 R2R3 MYB gene transcription factors, which include MIXTA gene, specification regulation cellular differentiation. We...
Abstract Background Plastome-scale data have been prevalent in reconstructing the plant Tree of Life. However, phylogenomic studies currently based on plastomes rely primarily maximum likelihood inference concatenated alignments plastid genes, and thus phylogenetic discordance produced by individual genes has generally ignored. Moreover, structural functional characteristics indicate that may not evolve as a single locus are experiencing different evolutionary forces, yet genetic within...
Summary Investigating the interaction between environmental heterogeneity and local adaptation is critical for understanding evolutionary history of a species, providing premise studying response organisms to rapid climate change. However, most species how exactly spatial promotes population divergence genomic variations contribute adaptive evolution remain poorly understood. We examine contributions geographical variables relictual, alpine herb Circaeaster agrestis , as well genetic basis...
To evaluate the phylogenetic patterns of distribution and evolution plant secondary metabolites (PSMs), we selected 8 classes PSMs mapped them onto an updated tree including 437 families seed plants. A significant signal was detected in 17 18 tested seed-plant clades for at least 1 PSM using D statistic. The signal, nevertheless, indicated weak clustering compared to a random across all observed suggests strong diversifying selection during and/or relatively evolutionary constraints on PSMs....
Abstract Background Myrtales is a species rich branch of Rosidae, with many having important economic, medicinal, and ornamental value. At present, although there are reports on the chloroplast structure Myrtales, comprehensive analysis lacking. Phylogenetic divergence time estimates mostly constructed by using gene fragments, support for relationships low. A more reliable method to reconstruct phylogenetic whole genomes. In this study, we comprehensively analyzed structural characteristics...
Abstract Aims The tropical niche conservatism (TNC) hypothesis and the out of tropics (OTT) propose mechanisms generating patterns species diversity across warm‐to‐cold thermal gradients at large spatial scales. These two hypotheses both integrate ecological biogeography‐related evolutionary factors, but they predict opposite for phylogenetic structure. Mount Namjagbarwa possesses one longest elevational flowering plant in world. We aim to analyse structure plants this mountain, investigate...
A major goal of phylogenetic systematics is to understand both the patterns diversification and processes by which these are formed. Few studies have focused on ancient, species-rich Magnoliales clade its pattern. Within Magnoliales, pantropically distributed Annonaceae far most genus-rich family-level clade, with c. 110 genera 2,400 species. We investigated across identified traits that show varied associations rates using a time-calibrated phylogeny 835 species (34.6% sampling) 11,211...
Abstract Calochortus tolmiei Hook. & Arn., a bulbous monocot with cat’s ear flowers in the angiosperm family Liliaceae, is perennial herb native to northern California, Oregon, and Washington. exhibits substantial morphological karyotype diversity multiple floral forms haploid chromosome number varying from six 10. Here, we present first high-quality reference assembly Liliaceae for C. tolmiei, scaffolded of 2.9 Gbp N50 296 Mbp. Notably, 92% assembled genome into 10 pseudomolecules,...
Abstract Background and Aims Understanding spatial patterns of neutral adaptive genetic variation linking them to future climate change have become crucial in assessing the vulnerability species developing conservation strategies. Using a combination genomic approaches, this study aimed explain demographic history, predict potential Washingtonia palm populations on Baja California Peninsula (BCP) southern determine geographic areas where will most drastic effects. Methods We used over 5000...
Abstract Allopolyploidy, a phenomenon prevalent in angiosperms involving hybridization and whole-genome duplication, results species with multiple subgenomes, altering genome structure gene expression, leading to novel phenotypes. Allopolyploids often experience unbalanced homeolog expression bias, the preferential of homeologs from one two progenitor genomes. To explore consequences allopolyploidy we investigate global fate Nicotiana (Solanaceae). We focus on section Repandae, including...
Premise of the study: The One Thousand Plant Transcriptomes Project (1KP, 1000+ assembled plant transcriptomes) provides an enormous resource for developing microsatellite loci across tree life. We developed from these transcriptomes and tested their utility. Methods Results: Using software packages custom scripts, we identified in 1KP transcriptomes. assessed potential cross‐amplification whether were biased toward exons, as compared to markers derived genomic DNA. characterized over 5.7...
Abstract Torreya Arn., a small genus of Taxaceae, consists six species occurring in North America and eastern Asia. Several phylogenetic studies have previously been undertaken to reveal relationships within this genus, although only few DNA segments or were used. In the present study, we sequenced five plastomes combined these with two existing from investigate plastome evolution . All shared same complement 82 protein‐coding genes, 4 ribosomal RNA 31 transfer genes. Phylogenetic inference...
Kingdonia uniflora, an alpine herb, has extremely narrow distribution and represents a model for studying evolutionary mechanisms of species that have adapted to undisturbed environments evolutionarily long periods time. We assembled 1,004.7-Mb draft genome (encoding 43,301 genes) K. uniflora found significant overrepresentation in gene families associated with DNA repair, underrepresentation stress response, loss most plastid ndh genes. During the process, involved repair could help asexual...