Results 31 to 40 of about 2,446,201 (282)

Plant Biodiversity and Genetic Resources Matter!

open access: yesPlants, 2020
Plant biodiversity is the foundation of our present-day food supply (including functional food and medicine) and offers humankind multiple other benefits in terms of ecosystem functions and resilience to climate change, as well as other perturbations ...
Andreas W. Ebert, Johannes M. M. Engels
doaj   +1 more source

Bottleneck‐associated changes in the genomic landscape of genetic diversity in wild lynx populations

open access: yesEvolutionary Applications, 2021
Demographic bottlenecks generally reduce genetic diversity through more intense genetic drift, but their net effect may vary along the genome due to the random nature of genetic drift and to local effects of recombination, mutation, and selection.
Maria Lucena‐Perez   +5 more
doaj   +1 more source

Genetic Erosion in the Tropics.

open access: yesTropics, 1994
Vanishing of genetic resources within a cultivated plant species, genetic erosion, has been recognized as a serious problem in the field of agronomy. To estimate the rate of genetic erosion in wild rice, biomass (product of total area of the population X rice plant cover in percent) of 21 wild rice populations in northern and northeastern Thailand was ...
openaire   +2 more sources

The significance of velocity exponents in identifying erosion-corrosion mechanisms [PDF]

open access: yes, 1993
The modes of erosion-corrosion are diverse and may vary from being ''erosion-dominated'', where erosion of metal is the dominant process, to ''corrosion-dominated'', where erosion of oxide scale is the dominant process.
Stack, Margaret, Stott, F.H., Wood, G.C.
core   +3 more sources

Review of Crop Wild Relative Conservation and Use in West Asia and North Africa

open access: yesPlants
Ensuring global food security in the face of climate change is critical to human survival. With a predicted human population of 9.6 billion in 2050 and the demand for food supplies expected to increase by 60% globally, but with a parallel potential ...
Nigel Maxted   +5 more
doaj   +1 more source

Sphenostylis stenocarpa (ex. A. Rich.) Harms., a Fading Genetic Resource in a Changing Climate: Prerequisite for Conservation and Sustainability

open access: yesPlants, 2017
The southeastern part of Nigeria is one of the major hotspots of useful plant genetic resources. These endemic species are associated with a rich indigenous knowledge and cultural diversity in relation to their use and conservation.
Catherine Veronica Nnamani   +5 more
doaj   +1 more source

Estimating maize genetic erosion in modernized smallholder agriculture [PDF]

open access: yesTheoretical and Applied Genetics, 2009
Replacement of crop landraces by modern varieties is thought to cause diversity loss. We studied genetic erosion in maize within a model system; modernized smallholder agriculture in southern Mexico. The local seed supply was described through interviews and in situ seed collection. In spite of the dominance of commercial seed, the informal seed system
van Heerwaarden, J.   +3 more
openaire   +2 more sources

Genetic load has potential in large populations but is realized in small inbred populations

open access: yesEvolutionary Applications, 2021
Populations with higher genetic diversity and larger effective sizes have greater evolutionary capacity (i.e., adaptive potential) to respond to ecological stressors.
Samarth Mathur, J. Andrew DeWoody
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Farmers perception of pesticide use and genetic erosion of landraces of tetraploid wheat (Triticum spp.) in Ethiopia

open access: yes, 2017
Perception of farmers' about the use of pesticides and genetic erosion of tetraploid wheat landraces of Ethiopia was assessed through focus group discussions with farmers, on-farm observations, personal interviews with farmers, by using structured ...
Sveriges lantbruksuniversitet.   +1 more
core   +1 more source

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