Scott Kalberer

United States Department of Agriculture | USDA · Agricultural Research Service (ARS)

The abilities of cold-hardy plants to resist deacclimation during transient warm spells and to reacclimate when cold temperatures return are significant for winter survival. Yet compared to the volume of research on the biology of cold acclimation, relatively little is known about how plants maintain and/or reacquire cold hardiness in late winter a...

Temperate-zone woody perennials may resist cold dehardening and reharden effectively after unseasonably warm winter conditions to avoid frost damage. Few controlled experiments have examined dehardening kinetics or the impact of dehardening on rehardening capacity after cold temperatures return. We used nine genotypes of deciduous azalea from eight...

Key message We report a linkage map for Apios americana and describe synteny with selected warm-season legumes. A translocation event in common bean and soy‑ bean is confrmed against Apios and Vigna species. Abstract Apios (Apios americana; “apios”), a tuberous perennial legume in the Phaseoleae tribe, was widely used as a food by Native Americans....

Legume Information System (LIS), at http://legumeinfo.org, is a genomic data portal (GDP) for the legume family. LIS provides access to genetic and genomic information for major crop and model legumes. With more than two-dozen domesticated legume species, there are numerous specialists working on particular species, and also numerous GDPs for these...

Dehardening resistance and rehardening capacity in late winter and spring are important factors contributing to the winter survival of woody perennials. Previously the authors determined the midwinter hardiness, dehardening resistance, and rehardening capacities in deciduous azalea (Rhododendron L.) floral buds in early winter. The purpose of this...

In this chapter, we introduce the main components of the Legume Information System (https://legumeinfo.org) and several associated resources. Additionally, we provide an example of their use by exploring a biological question: is there a common molecular basis, across legume species, that underlies the photoperiod-mediated transition from vegetativ...

The Legume Information System (LIS; https://legumeinfo.org) houses genetic and genomic data, integrated in various online tools to allow comparative genomic analyses. The website and database maintain data for more than two dozen species, particularly focusing on crop and model species and holding data for other diverse species of taxonomic interes...

Apios americana an herbaceous perennial legume with climbing, vinous habit, produces underground stem tubers along stolons A americana was wild harvested by Native Americans throughout eastern North America There is also some evidence of cultivation and transport of landraces Early historical records of Apios in North America describe its important...

Over the last 40 years, several researchers have worked to develop improved cultivars of Apios americana. Notable improvements have been made in yield and tuber size. Research over this period has also led to better understanding of genetic and genomic limitations (e.g. sterile triploid populations) and characteristics of floral biology (an unusual...

Background: Breeding programs benefit from information about marker-trait associations for many traits, whether the goal is to place those traits under active selection or to maintain them through background selection. Association studies are also important for identifying accessions bearing potentially useful alleles by characterizing marker-trai...

For species with potential as new crops, rapid improvement may be facilitated by new genomic methods. Apios (Apios americana Medik.), once a staple food source of Native American Indians, produces protein-rich tubers, tolerates a wide range of soils, and symbiotically fixes nitrogen. We report the first high-quality de novo transcriptome assembly,...

Large-scale genomic data for peanut have only become available in the last few years, with the advent of low-cost sequencing technologies. To make the data accessible to researchers and to integrate across diverse types of data, the International Peanut Genomics Consortium funded the development of PeanutBase, at http://peanutbase.org. This website...

Current sequencing techniques are capable of generating a good representation of the sequence of an organism’s genome or transcriptome inexpensively. Such sequencing facilitates the genetic characterization of various ” orphan ” plant species, including some that may have a promising future as new crops. We used transcriptome sequencing to identify...

LIS (legumeinfo.org) is a resource for trait genetics and comparative genomics for legumes. The site hosts annotated genomes for nine species: common bean, chickpea, pigeonpea, Medicago truncatula, Lotus japonicus, mungbean, soybean (SoyBase.org) and two Arachis species (PeanutBase.org). A major effort at LIS is to leverage data from information-ri...

Apios (Apios americana Medik.), sometimes called “potato bean,” is a nitrogen-fixing legume, native to eastern North America, that produces protein-rich tubers at nodes along belowground stolons. Apios was used as a staple food source by Native Americans throughout eastern North America and holds promise as a crop. An Apios breeding program conduct...

Plant phenotype datasets include many different types of data, formats, and terms from specialized vocabularies. Because these datasets were designed for different audiences, they frequently contain language and details tailored to investigators with different research objectives and backgrounds. Although phenotype comparisons across datasets have...

Quantitative trait loci (QTL) analysis is often the starting point for dissecting underlying genetic mechanisms of complex traits. To make use of the many QTL mapping studies in legumes, methods are needed for integrating QTLs from various studies within a species. We describe the approaches used in public databases for soybean (soybase.org), commo...

Dehardening resistance and rehardening in woody perennials provide protection against frost that may follow unseasonable warm spells during winter and spring. The effects of biogeography on hardiness transitions and endodormancy were studied using species and/or ecotypes of deciduous azaleas (Rhododendron) originating in diverse habitats. The thesi...

Winter survival of temperate-zone woody perennials requires them to resist loss of frost hardiness (deacclimation) during winter and early spring thaws. However, little is known about deacclimation response in woody landscape plants. Moreover, what impact, if any, the degree of deacclimation has on reacclimation capacity has not been systematically...