Office BuildingEdgar S. McFadden Biostress Lab
Mailing AddressMcFadden Biostress Laboratory 254B
Agronomy, Horticulture & Plant Science-Box 2140C
Brookings, SD 57007
Grapevine bud proteins and protein functional categories up-regulated in long (paradormant buds) and short (endodormant buds)photoperiods.
This study presents a protocol for and the first construction of a F2 genetic map by single nucleotide polymorphisms identified through genotyping-by-sequencing (GBS) technology. This map was used to interrogate fruit quality and provides the first yeast assimilable nitrogen associated QTL and candidate genes for exploration of this trait. Joint analysis of malic acid and soluble solids identified major QTL and first identification of 14 candidate genes within the region.
Paradormancy maintenance and endodormancy induction in grapevine
Academic InterestsGrapevine bud dormancy and cold hardiness
Grapevine Genetics and genomics
Plant Physiology and Molecular Biology
Academic ResponsibilitiesHO411 Fruit Crop Production Systems (rotating crop topics, tree fruits, grapevine, brambles, native fruits, strawberries)
PS664 Molecular Plant Physiology
PS763 Crop Physiology (Subramanian, Fennell, Gu)
PS781 Graduate Seminar
Awards and HonorsFaculty Award for Global Engagement (International Research, SDSU), 2019
John Robertson Award, South Dakota Horticulture Society, 2017
College of Agriculture and Biological Sciences Distinguished Research Award, 2008
Gamma Sigma Delta Research Award of Merit (SDSU), 2008
Women of Distinction Faculty Award (SDSU), 2007
F.O. Butler Award for Excellence in Research (SDSU), 2006
ABS Dean’s Team Award for Entrepreneurship, Production, and Agritourism in Horticulture Specialty Crops, 2004
Sigma Xi Scientific Research Society (SDSU), 1997
ABS Dean’s award of research excellence in recognition of research contributions to the South Dakota’s new farm winery industry, 1997
Pi Alpha Xi Ornamental Horticulture Society, 1992
Work ExperienceProfessor, SDSU, Agronomy, Horticulture and Plant Science Department (2011 - present) Department of Horticulture, Forestry, Landscape and Parks (HFLP) (2002-2011)
Visiting Professor to University of Verona, Verona, Italy (2010)
Visiting Professor to INP - ESNAT, Castenet, France (2007)
Sabbatical Faculty Appointment, Oregon State University, Corvallis, Oregon 2000
Associate Professor, SDSU, Department of Horticulture, Forestry, Landscape and Parks (1997-2002)
Assistant Professor, SDSU, Dept. Horticulture, Forestry, Landscape and Parks (1992-1997)
Creative ActivitiesExecutive Committee Member and Co-PI of multi-institutional research programs, including: BioSNTR (NSF and SDRIC funded 2014-2019). Role: SDSU computational core and mentorship lead; USDA/AFRI CAP project 2011-2016: Accelerating grape cultivar improvement via phenotyping centers and next generation markers (B. Reisch, PI). Role: Phenotyping Centers Lead and developer of SDSU low temperature response phenotyping center; USDA/AFRI CAP project 2011-2016: Northern Grapes: Integrating viticulture, winemaking, and marketing of new cold hardy cultivars supporting new and growing rural wineries. (T. Martinson, PI). Lead for genomic analysis of fruit ripening component, RNASeq analysis of fruit ripening and denovo assembly of hybrid cultivar transcriptomes.
Organizer of the International Plant and Animal Genome Conference Plant Dormancy Workshop 2015-2018. Frontiers in Plant Science Topic editor for “Improving crop production in the light of climate change” and Improving Fruit Crop Production in the Light of Climate Change: First and Second Edition.
Member of the National Committee of Visitors for NSF funded Viticulture and Enology Science and Technology Alliance (VESTA) Center of Excellence (2013 – ongoing). NSF funded Grape Research Coordination Network Advisory Committee Member (GRCN 2010-2013).
NSF Research Experience for Undergraduates (REU) mentor for three students in NSF REU Site: High Performance Computing in STEM Disciplines at South Dakota State University #1559978 2016-17 and NSF SD EPSCOR IIA 1355423 REU Experiences. Development of NSF funded course and content for SD middle school teachers: “Using native plants to teach science”. Development of cold climate grapevine educational outreach exhibit in cooperation with the South Dakota Agricultural Museum.
Member of the National Grape Research Alliance Natural Resources and Environmental Research Committee (Appointed 2017 and ongoing). SDSU representative for the NE1720 Multi-state coordinated evaluation of winegrape cultivars and clones (2008-2016 NE1020, NE1720 2017-ongoing).
Area(s) of ResearchBud dormancy is an integral component of growth cycling, productivity and winter survival in perennial plant systems. It is an adaptive strategy for the survival of drought, high temperature, low temperature, and freeze-dehydration stress. In a changing climate timing of dormancy induction and release are critical for sustainable production. Dormancy is not a static state, rather a dynamic phase of plant development that impacts the geographical range, yields and management strategies of many woody species, including grapevines (Vitis). My lab’s research programs are focused on the genetic, physiological and phenotypic aspects of grapevine bud dormancy, cold hardiness and chilling fulfillment. Specifically, to identify genes, pathways, and genetic architecture which impact sustainable production of grapevine and other perennial systems. This knowledge is key to marker assisted selection of new materials, and identifying existing cultivars that are well-adapted to changing northern temperate environments and development of management strategies for sustainable production.
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