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- Abiotic stress (1)
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Articles 1 - 10 of 10
Full-Text Articles in Mental and Social Health
The Ecological Genomic Basis Of Salinity Adaptation In Tunisian Medicago Truncatula, Maren L. Friesen, Eric J.B. Von Wettberg, Mounawer Badri, Ken S. Moriuchi, Fathi Barhoumi, Peter L. Chang, Sonia Cuellar-Ortiz, Matilde A. Cordeiro, Wendy T. Vu, Soumaya Arraouadi, Naceur Djébali, Kais Zribi, Yazid Badri, Stephanie S. Porter, Mohammed Elarbi Aouani, Douglas R. Cook, Sharon Y. Strauss, Sergey V. Nuzhdin
The Ecological Genomic Basis Of Salinity Adaptation In Tunisian Medicago Truncatula, Maren L. Friesen, Eric J.B. Von Wettberg, Mounawer Badri, Ken S. Moriuchi, Fathi Barhoumi, Peter L. Chang, Sonia Cuellar-Ortiz, Matilde A. Cordeiro, Wendy T. Vu, Soumaya Arraouadi, Naceur Djébali, Kais Zribi, Yazid Badri, Stephanie S. Porter, Mohammed Elarbi Aouani, Douglas R. Cook, Sharon Y. Strauss, Sergey V. Nuzhdin
College of Agriculture and Life Sciences Faculty Publications
Background: As our world becomes warmer, agriculture is increasingly impacted by rising soil salinity and understanding plant adaptation to salt stress can help enable effective crop breeding. Salt tolerance is a complex plant phenotype and we know little about the pathways utilized by naturally tolerant plants. Legumes are important species in agricultural and natural ecosystems, since they engage in symbiotic nitrogen-fixation, but are especially vulnerable to salinity stress. Results: Our studies of the model legume Medicago truncatula in field and greenhouse settings demonstrate that Tunisian populations are locally adapted to saline soils at the metapopulation level and that saline origin …
Exploring Germplasm Diversity To Understand The Domestication Process In Cicer Spp. Using Snp And Dart Markers, Manish Roorkiwal, Eric J. Von Wettberg, Hari D. Upadhyaya, Emily Warschefsky, Abhishek Rathore, Rajeev K. Varshney
Exploring Germplasm Diversity To Understand The Domestication Process In Cicer Spp. Using Snp And Dart Markers, Manish Roorkiwal, Eric J. Von Wettberg, Hari D. Upadhyaya, Emily Warschefsky, Abhishek Rathore, Rajeev K. Varshney
College of Agriculture and Life Sciences Faculty Publications
To estimate genetic diversity within and between 10 interfertile Cicer species (94 genotypes) from the primary, secondary and tertiary gene pool, we analysed 5,257 DArT markers and 651 KASPar SNP markers. Based on successful allele calling in the tertiary gene pool, 2,763 DArT and 624 SNP markers that are polymorphic between genotypes from the gene pools were analyzed further. STRUCTURE analyses were consistent with 3 cultivated populations, representing kabuli, desi and pea-shaped seed types, with substantial admixture among these groups, while two wild populations were observed using DArT markers. AMOVA was used to partition variance among hierarchical sets of landraces …
New Perspectives In Ecosystem Services Science As Instruments To Understand Environmental Securities, Ferdinando Villa, Brian Voigt, Jon D. Erickson
New Perspectives In Ecosystem Services Science As Instruments To Understand Environmental Securities, Ferdinando Villa, Brian Voigt, Jon D. Erickson
Rubenstein School of Environment and Natural Resources Faculty Publications
As societal demand for food, water and other life-sustaining resources grows, the science of ecosystem services (ES) is seen as a promising tool to improve our understanding, and ultimately the management, of increasingly uncertain supplies of critical goods provided or supported by natural ecosystems. This promise, however, is tempered by a relatively primitive understanding of the complex systems supporting ES, which as a result are often quantified as static resources rather than as the dynamic expression of human-natural systems. This article attempts to pinpoint the minimum level of detail that ES science needs to achieve in order to usefully inform …
A Methodology For Adaptable And Robust Ecosystem Services Assessment, Ferdinando Villa, Kenneth J. Bagstad, Brian Voigt, Gary W. Johnson, Rosimeiry Portela, Miroslav Honzák, David Batker
A Methodology For Adaptable And Robust Ecosystem Services Assessment, Ferdinando Villa, Kenneth J. Bagstad, Brian Voigt, Gary W. Johnson, Rosimeiry Portela, Miroslav Honzák, David Batker
Rubenstein School of Environment and Natural Resources Faculty Publications
Ecosystem Services (ES) are an established conceptual framework for attributing value to the benefits that nature provides to humans. As the promise of robust ES-driven management is put to the test, shortcomings in our ability to accurately measure, map, and value ES have surfaced. On the research side, mainstream methods for ES assessment still fall short of addressing the complex, multi-scale biophysical and socioeconomic dynamics inherent in ES provision, flow, and use. On the practitioner side, application of methods remains onerous due to data and model parameterization requirements. Further, it is increasingly clear that the dominant "one model fits all" …
Genetic Diversity And Demographic History Of Cajanus Spp. Illustrated From Genome-Wide Snps, Rachit K. Saxena, Eric Von Wettberg, Hari D. Upadhyaya, Vanessa Sanchez, Serah Songok, Kulbhushan Saxena, Paul Kimurto, Rajeev K. Varshney
Genetic Diversity And Demographic History Of Cajanus Spp. Illustrated From Genome-Wide Snps, Rachit K. Saxena, Eric Von Wettberg, Hari D. Upadhyaya, Vanessa Sanchez, Serah Songok, Kulbhushan Saxena, Paul Kimurto, Rajeev K. Varshney
College of Agriculture and Life Sciences Faculty Publications
Understanding genetic structure of Cajanus spp. is essential for achieving genetic improvement by quantitative trait loci (QTL) mapping or association studies and use of selected markers through genomic assisted breeding and genomic selection. After developing a comprehensive set of 1,616 single nucleotide polymorphism (SNPs) and their conversion into cost effective KASPar assays for pigeonpea (Cajanus cajan), we studied levels of genetic variability both within and between diverse set of Cajanus lines including 56 breeding lines, 21 landraces and 107 accessions from 18 wild species. These results revealed a high frequency of polymorphic SNPs and relatively high level of cross-species transferability. …
More Cells, Bigger Cells Or Simply Reorganization? Alternative Mechanisms Leading To Changed Internode Architecture Under Contrasting Stress Regimes, Heidrun Huber, Jan De Brouwer, Eric J. Von Wettberg, Heinjo J. During, Niels P.R. Anten
More Cells, Bigger Cells Or Simply Reorganization? Alternative Mechanisms Leading To Changed Internode Architecture Under Contrasting Stress Regimes, Heidrun Huber, Jan De Brouwer, Eric J. Von Wettberg, Heinjo J. During, Niels P.R. Anten
College of Agriculture and Life Sciences Faculty Publications
Summary: Shading and mechanical stress (MS) modulate plant architecture by inducing different developmental pathways. Shading results in increased stem elongation, often reducing whole-plant mechanical stability, while MS inhibits elongation, with a concomitant increase in stability. Here, we examined how these organ-level responses are related to patterns and processes at the cellular level by exposing Impatiens capensis to shading and MS. Shading led to the production of narrower cells along the vertical axis. By contrast, MS led to the production of fewer, smaller and broader cells. These responses to treatments were largely in line with genetic differences found among plants from …
Shade Coffee: Update On A Disappearing Refuge For Biodiversity, Shalene Jha, Christopher M. Bacon, Stacy M. Philpott, V. Ernesto Méndez, Peter Läderach, Robert A. Rice
Shade Coffee: Update On A Disappearing Refuge For Biodiversity, Shalene Jha, Christopher M. Bacon, Stacy M. Philpott, V. Ernesto Méndez, Peter Läderach, Robert A. Rice
College of Agriculture and Life Sciences Faculty Publications
In the past three decades, coffee cultivation has gained widespread attention for its crucial role in supporting local and global biodiversity. In this synthetic Overview, we present newly gathered data that summarize how global patterns in coffee distribution and shade vegetation have changed and discuss implications for biodiversity, ecosystem services, and livelihoods. Although overall cultivated coffee area has decreased by 8% since 1990, coffee production and agricultural intensification have increased in many places and shifted globally, with production expanding in Asia while contracting in Africa. Ecosystem services such as pollination, pest control, climate regulation, and nutrient sequestration are generally greater …
The Forest Has A Story: Cultural Ecosystem Services In Kona, Hawai‘I, Rachelle K. Gould, Nicole M. Ardoin, Ulalia Woodside, Terre Satterfield, Neil Hannahs, Gretchen C. Daily
The Forest Has A Story: Cultural Ecosystem Services In Kona, Hawai‘I, Rachelle K. Gould, Nicole M. Ardoin, Ulalia Woodside, Terre Satterfield, Neil Hannahs, Gretchen C. Daily
Rubenstein School of Environment and Natural Resources Faculty Publications
Understanding cultural dimensions of human/environment relationships is now widely seen as key to effective management, yet characterizing these dimensions remains a challenge. We report on an approach for considering the nonmaterial values associated with ecosystems, i.e., cultural ecosystem services. We applied the approach in Kona, Hawai‘i, using 30 semistructured interviews and 205 in-person surveys, striving to balance pragmatism and depth. We found spirituality, heritage, and identity-related values to be particularly salient, with expression of some of these values varying among respondents by ethnicity and duration of residence in Hawai‘i. Although people of various backgrounds reported strong spirituality and heritage-related values, …
Whales As Marine Ecosystem Engineers, Joe Roman, James A. Estes, Lyne Morissette, Craig Smith, Daniel Costa, James Mccarthy, J. B. Nation, Stephen Nicol, Andrew Pershing, Victor Smetacek
Whales As Marine Ecosystem Engineers, Joe Roman, James A. Estes, Lyne Morissette, Craig Smith, Daniel Costa, James Mccarthy, J. B. Nation, Stephen Nicol, Andrew Pershing, Victor Smetacek
Rubenstein School of Environment and Natural Resources Faculty Publications
Baleen and sperm whales, known collectively as the great whales, include the largest animals in the history of life on Earth. With high metabolic demands and large populations, whales probably had a strong influence on marine ecosystems before the advent of industrial whaling: as consumers of fish and invertebrates; as prey to other large-bodied predators; as reservoirs of and vertical and horizontal vectors for nutrients; and as detrital sources of energy and habitat in the deep sea. The decline in great whale numbers, estimated to be at least 66% and perhaps as high as 90%, has likely altered the structure …
Impacts Of Projected Climate Change Over The Lake Champlain Basin In Vermont, Justin Guilbert, Brian Beckage, Jonathan M. Winter, Radley M. Horton, Timothy Perkins, Arne Bomblies
Impacts Of Projected Climate Change Over The Lake Champlain Basin In Vermont, Justin Guilbert, Brian Beckage, Jonathan M. Winter, Radley M. Horton, Timothy Perkins, Arne Bomblies
College of Agriculture and Life Sciences Faculty Publications
The Lake Champlain basin is a critical ecological and socioeconomic resource of the northeastern United States and southern Quebec, Canada. While general circulation models (GCMs) provide an overview of climate change in the region, they lack the spatial and temporal resolution necessary to fully anticipate the effects of rising global temperatures associated with increasing greenhouse gas concentrations. Observed trends in precipitation and temperature were assessed across the Lake Champlain basin to bridge the gap between global climate change and local impacts. Future shifts in precipitation and temperature were evaluated as well as derived indices, including maple syrup production, days above …