Botany Commons^™

The Regulatory Network For Petal Anthocyanin Pigmentation Is Shaped By The Myb5a/Negan Transcription Factor In Mimulus, Xingyu Zheng, Kuenzang Om, Kimmy A. Stanton, (...), Gregory D. Conradi Smith, Joshua R. Puzeyn, Et Al.

Arts & Sciences Articles

Much of the visual diversity of angiosperms is due to the frequent evolution of novel pigmentation patterns in flowers. The gene network responsible for anthocyanin pigmentation, in particular, has become a model for investigating how genetic changes give rise to phenotypic innovation. In the monkeyflower genus Mimulus, an evolutionarily recent gain of petal lobe anthocyanin pigmentation in M. luteus var. variegatus was previously mapped to genomic region pla2. Here, we use sequence and expression analysis, followed by transgenic manipulation of gene expression, to identify MYB5a—orthologous to the NEGAN transcriptional activator from M. lewisii—as the gene responsible …

Subgenome Dominance In An Interspecific Hybrid, Synthetic Allopolyploid, And A 140-Year-Old Naturally Established Neo-Allopolyploid Monkeyflower, Patrick P. Edger, Ronald Smith, Micheal R. Mckain, (...), Gregory D. Conradi Smith, Joshua R. Puzey

Arts & Sciences Articles

Recent studies have shown that one of the parental subgenomes in ancient polyploids is generally more dominant, having retained more genes and being more highly expressed, a phenomenon termed subgenome dominance. The genomic features that determine how quickly and which subgenome dominates within a newly formed polyploid remain poorly understood. To investigate the rate of emergence of subgenome dominance, we examined gene expression, gene methylation, and transposable element (TE) methylation in a natural, <140-year-old allopolyploid (Mimulus peregrinus), a resynthesized interspecies triploid hybrid (M. robertsii), a resynthesized allopolyploid (M. peregrinus), and progenitor species (M. guttatus …

Associated Dataset: Climate Change Impacts On Southern Ross Sea Phytoplankton Composition, Productivity And Export, Daniel E. Kaufman, Marjorie A.M. Friedrichs, Walker O. Smith Jr., Eileen E. Hofmann, Michael S. Dinniman, John C.P. Hemmings

Data

This dataset includes data used in the publication Kaufman et al., 2017, JGR-Oceans, which investigates how these climatic changes in the Ross Sea, Antarctica, may alter phytoplankton composition, primary productivity and export. A one-dimensional version of the Model of Ecosystem Dynamics, nutrient Utilisation, Sequestration and Acidification was adapted for use in the Ross Sea (MEDUSA-RS). Glider measurements were used to force MEDUSA-RS, which includes diatoms and both solitary and colonial forms of Phaeocystis antarctica. Model performance was evaluated with glider observations, and experiments were conducted using projections of physical drivers for mid- and late-21st century. Additional scenarios examined the …

Native Plants For Southeast Virginia Including Hampton Roads Region, Virginia Institute Of Marine Science – Center For Coastal Resources Management, Virginia Coastal Zone Management Program - Virginia Department Of Environmental Quality, Partner Organizations

Reports

This guide showcases the attractive variety of plants native to Southeast Virginia, which includes the Hampton Roads region. Native plant species have evolved within specific areas and been dispersed through their range without known human involvement. These plants form the primary structure of the living landscape and provide food and shelter for native animal species.

Field Guide To Virginia Salt And Brackish Marsh Plants, Virginia Institute Of Marine Science, Center For Coastal Resources Management

Reports

No abstract provided.

An Introduction To Wetland Seed Banks, Douglas A. Deberry, James E. Perry, Virginia Institute Of Marine Science, Wetlands Program

Reports

No abstract provided.

A Systematic Treatment Of Acacia Coulteri (Fabaceae, Mimosoideae) And Similar Species In The New World, Jennifer T. Jawad, David S. Seigler, John E. Ebinger

VIMS Articles

Detailed descriptions, habitat preferences, geographic ranges, and representative specimens are given for the 13 taxa of the Acacia coulteri group from Mexico, Central America, and the southwestern United States. These species form a distinct group within Acacia series Vulgares, lacking prickles and usually having persistent stipules. A principal components analysis (PCA) of vegetative and floral features shows that the specimens examined form discrete units in plots of the first three principal components. The groups established by PCA mostly coincide with previously described species. The taxa within this group are phenetically similar, sharing many morphological features. These data also suggest …

Increasing The Probability Of Success In Restored Forested Wetlands, Kirk J. Havens, Gene Silberhorn

Reports

This study investigated survival and growth of two distinct ecotypic populations, with varying tolerance to waterlogging, of four species, Taxodium distichum (L.) Richard, Carpinus caroliniana Walt., Quercus michauxii Nutt. and Quercus pagoda Raf. (Syn. Q.falcata var. pagodifolia Ell.).

Values And Management Strategies For Nonvegetated Tidal Wetlands, Louise Theberge, Donald F. Boesch

Reports

Part I. Values and Management Strategies for Nonvegetated Tidal Wetlands: A Summary

Part II. The Resource Ecology of Nonvegetated Wetlands: A Review

Tidal Wetland Plants Of Virginia, Gene M. Silberhorn

Reports

This field book was written for those who want to know more about the common tidal wetland plants in Virginia and adjacent coastal states. Extensive field work has shown that these species are commonly found in saltwater, brackish water and freshwater marshes and swamps.

The text is presented in a non-technical vein. However, some of the more important and interesting plant characteristics that need to be explained are done so in basic botanical terms. For this reason a glossary is included for the reader's convenience.

A descriptive key is provided in order to facilitate the identification of species contained in …

Key To The Genera Of Marine Bluegreen Algae Of Southeastern North America, Harold J. Humm

Reports

No abstract provided.