# overview
My laboratory uses genetic, molecular, and genomic tools to study how terrestrial plants adapt, both in a short-term sense (phenotypic plasticity) and in a long-term sense (adaptive evolution), to the vast diversity of environments found on our planet.

My laboratory is studying the molecular and physiological mechanisms of 'downstream' developmental responses to light using genetic and molecular tools available in the model plant Arabidopsis thaliana. In another project, we are using comparative genomics to investigate the genetic basis of the evolution-under-domestication of developmental processes in cultivated cottons (Gossypium spp.) and their wild relatives. Gossypium is in the Malvaceae family and, as such, shares a recent common ancestor with Arabidopsis and other plants in the Brassicaceae family.

We are also investigating the genetic mechanisms of plant adaptation to the stresses of extreme environments such as drought, low mineral nutrients (N,P,K) and heavy metals, in wild relatives of Arabidopsis, such as the rare endemic plant Caulanthus amplexicaulis (Brassicaceae.) This work has led us to become more broadly interested in the conservation and ecological genetics of rare plants, particularly geoendemics.

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Recombinant Inbred Line (ril) Population

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Intracellular Signaling Peptides And Proteins

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2.2 Factors Relating To The Physical Environment

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Expressed Sequence Tag-simple Sequence Repeats (est-ssr)

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Reverse Transcriptase Polymerase Chain Reaction

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Intracellular Signaling Peptides And Proteins

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University of California, Berkeley - (Berkeley, California, United States)

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University of California, Davis - (Davis, California, United States)

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Salk Institute for Biological Studies - (La Jolla, California, United States)

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Mapping genomic loci for cotton plant architecture, yield components, and fiber properties in an interspecific (Gossypium hirsutum L.  G. barbadense L.) RIL population.

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Cotton PHYA1 RNAi improves fiber quality, root elongation, flowering, maturity and yield potential in Gossypium hirsutum L

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CONCORDANCE BETWEEN MOLECULAR AND MORPHOLOGICAL EVIDENCE OF HYBRIDIZATION IN THE DICHANTHELIUM ACUMINATUM (POACEAE: PANICEAE) SUBSPECIES COMPLEX

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A high-density simple sequence repeat and single nucleotide polymorphism genetic map of the tetraploid cotton genome.

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Novel nuclear markers inform the systematics and the evolution of serpentine use in Streptanthus and allies (Thelypodieae, Brassicaceae).

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RNA Interference for Functional Genomics and Improvement of Cotton (Gossypium sp.).

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Evolution of genome size in Brassicaceae.

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Diversity analysis of cotton (Gossypium hirsutum L.) germplasm using the CottonSNP63K Array.

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Development and characterization of microsatellite loci in endangered Astrophytum asterias (Cactaceae)

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Identification of 700 New Microsatellite Loci from Cotton (G. hirsutum L.)

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Linkage disequilibrium based association mapping of fiber quality traits in G. hirsutum L. variety germplasm.

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Molecular diversity and association mapping of fiber quality traits in exotic G. hirsutum L. germplasm.

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Discovery of nuclear and plastid microsatellites, and other key genomic information, in the rare endemic plant (Caulanthus amplexicaulis var. barbarae) using minimal 454 pyrosequencing

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Microsatellites Uncover Multiple Introductions of Clonal Giant Reed (Arundo donax)

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QTL mapping for flowering-time and photoperiod insensitivity of cotton Gossypium darwinii Watt.

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CMD: a Cotton Microsatellite Database resource for Gossypium genomics.

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Transcriptome Analysis of Ten-DPA Fiber in an Upland Cotton (Gossypium hirsutum) Line with Improved Fiber Traits from Phytochrome A1 RNAi Plants

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Genes regulating gland development in the cotton plant.

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Natural variation in Arabidopsis seedling photomorphogenesis reveals a likely role for TED1 in phytochrome signalling

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Evolution of Caulanthus amplexicaulis var. barbarae (Brassicaceae), a rare serpentine endemic plant: a molecular phylogenetic perspective.

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Molecular evolution: old branches on the phytochrome family tree.

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Isolation and characterization of microsatellite markers for Bothriochloa ischaemum (Poaceae).

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GENETIC STRUCTURE OF A POPULATION OF THE ENDANGERED STAR CACTUS (ASTROPHYTUM ASTERIAS) IN SOUTHERN TEXAS

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DET1, a negative regulator of light-mediated development and gene expression in arabidopsis, encodes a novel nuclear-localized protein.

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Development of a 63K SNP Array for Cotton and High-Density Mapping of Intraspecific and Interspecific Populations of Gossypium spp.

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Sporadic Genetic Connectivity among Small Insular Populations of the Rare Geoendemic Plant Caulanthus amplexicaulis var. barbarae (Santa Barbara Jewelflower).

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A genetic bottleneck in the 'evolution under domestication' of upland cotton Gossypium hirsutum L. examined using DNA fingerprinting

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Latitudinal variation in cold hardiness in introduced Tamarix and native Populus.

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Comparative analysis of temporal transcriptome reveals the relationship between pectin degradation and pathogenicity of defoliating Verticillium dahliae to Upland cotton (Gossypium hirsutum)

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De novo assembly and characterization of the transcriptome of the toxic dinoflagellate Karenia brevis.

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Transcriptome Signatures of Selection, Drift, Introgression, and Gene Duplication in the Evolution of an Extremophile Endemic Plant.

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Establishment and Spread of a Single Parthenogenic Genotype of the Mediterranean arundo wasp, Tetramesa romana(1), In the Variable Climate of Texas

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Isolation and characterization of 10 polymorphic microsatellites in saltcedars (Tamarix chinensis and Tamarix ramosissima)

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shl, a New set of Arabidopsis mutants with exaggerated developmental responses to available red, far-red, and blue light.

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Development, genetic mapping and QTL association of cotton PHYA, PHYB, and HY5-specific CAPS and dCAPS markers.

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Microsatellite markers associated with lint percentage trait in cotton, Gossypium hirsutum

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Primers for 10 polymorphic microsatellites from Caulanthus amplexicaulis var. barbarae, and cross-amplification in other species within the Streptanthoid Complex (Brassicaceae)

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A comparative genomic map for Caulanthus amplexicaulis and related species (Brassicaceae).

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From seed germination to flowering, light controls plant development via the pigment phytochrome.

# publications[].publisher
Proceedings of the National Academy of Sciences

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Genetic analyses of nickel tolerance in a North American serpentine endemic plant, Caulanthus amplexicaulis var. barbarae (Brassicaceae).

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Phytochrome RNAi enhances major fibre quality and agronomic traits of the cotton Gossypium hirsutum L.

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Duplication, divergence and persistence in the Phytochrome photoreceptor gene family of cottons (Gossypium spp.).

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SNP discovery in complex allotetraploid genomes (Gossypium spp., Malvaceae) using genotyping by sequencing.

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Genome-wide identification and characterization of microRNAs differentially expressed in fibers in a cotton phytochrome A1 RNAi line.

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Geographic patterns of microsatellite variation in Boechera stricta, a close relative of Arabidopsis.

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Genetic interactions in plant photomorphogenesis

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Mapping of verticillium wilt resistance genes in cotton

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Development of 15 microsatellite loci in the endangered Streptanthus glandulosus subsp. niger (Brassicaceae).

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Extragenic suppressors of the Arabidopsis det1 mutant identify elements of flowering-time and light-response regulatory pathways.

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New dinucleotide and trinucleotide microsatellite marker resources for cotton genome research

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Genetic diversity and relationships of diploid and tetraploid cottons revealed using AFLP

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The Arabidopsis thaliana carboxyl-terminal domain phosphatase-like 2 regulates plant growth, stress and auxin responses.

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Exploring origins, invasion history and genetic diversity of Imperata cylindrica (L.) P. Beauv. (Cogongrass) in the United States using genotyping by sequencing.

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The role of induced mutation in conversion of photoperiod dependence in cotton.

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Transcription of the constitutively expressed yeast enolase gene ENO1 is mediated by positive and negative cis-acting regulatory sequences.

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The GCR1 requirement for yeast glycolytic gene expression is suppressed by dominant mutations in the SGC1 gene, which encodes a novel basic-helix-loop-helix protein.

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dCAPS, a simple technique for the genetic analysis of single nucleotide polymorphisms: experimental applications in Arabidopsis thaliana genetics.

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Genomic Analysis of Adaptation to an Extreme Terrestrial Environment

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National Science Foundation - (Arlington, Virginia, United States)

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De Novo SNP Discovery and GBS-Based Cotton Genome Map Development

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Agricultural Research Service - (Washington D.C., District of Columbia, United States)

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A Population-Genetic Inventory of the Invasive Weed, Imperta Cylindrica To Expedite the Development of Viable Biological

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United States Department of Agriculture - (Washington D.C., District of Columbia, United States)

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USDA-National Institute of Food And Agriculture

# streetAddress
Texas A&M University; Biology; 3258 TAMU