Results 11 to 20 of about 2,681,556 (304)

The Genetic Structure and History of Africans and African Americans. [PDF]

open access: yesScience, 2009
Africa is the source of all modern humans, but characterization of genetic variation and of relationships among populations across the continent has been enigmatic. We studied 121 African populations, four African American populations, and 60 non-African
A. A. Awomoyi   +61 more
core   +3 more sources

Studying genetic diversity of whitefly B. tabaci Egyptian isolates in relation to some worldwide isolates

open access: yesJournal of Genetic Engineering and Biotechnology, 2015
Bemisia tabaci (Gennadius) (Hemiptera, Aleyrodidae) is considered to be one of the most damaging pests in agriculture, causing severe losses in crops worldwide, affecting the tropical and subtropical regions.
Inas Farouk Fahmy   +1 more
doaj   +1 more source

The genetic structure of Norway [PDF]

open access: yesEuropean Journal of Human Genetics, 2020
Abstract The aim of the present study was to describe the genetic structure of the Norwegian population using genotypes from 6369 unrelated individuals with detailed information about places of residence. Using standard single marker- and haplotype-based approaches, we report evidence of two regions with distinctive patterns of ...
Morten Mattingsdal   +11 more
openaire   +6 more sources

Fine-scale population structure and asymmetrical dispersal in an obligate salt-marsh passerine, the Saltmarsh Sparrow (Ammodramus Caudacutus) [PDF]

open access: yes, 2012
Understanding the spatial scale of gene flow can yield valuable insight into the ecology of an organism and guide conservation strategies. Fine-scale genetic structure is uncommon in migratory passerines because of their high vagility and presumed high ...
Babbitt, Kimberly J.   +3 more
core   +2 more sources

Adaptive Genetic Algorithm for Crystal Structure Prediction [PDF]

open access: yes, 2013
We present a genetic algorithm (GA) for structural search that combines the speed of structure exploration by classical potentials with the accuracy of density functional theory (DFT) calculations in an adaptive and iterative way. This strategy increases
Ho, K. M.   +8 more
core   +2 more sources

What contributes to individual differences in brain structure? [PDF]

open access: yes, 2014
Individual differences in adult human brain structure have been found to reveal a great deal of information about variability in behaviors, cognitive abilities and mental and physical health.
Alexander   +57 more
core   +2 more sources

Does habitat stability structure intraspecific genetic diversity? It’s complicated... [PDF]

open access: yes, 2020
Regional phylogeographic studies have long been conducted in the southeastern United States for a variety of species. With some exceptions, many of these studies focus on single species or single clades of organisms, and those considering multiple ...
Boot, Matthew R.   +15 more
core   +1 more source

High Genetic Diversity and Low Differentiation of Michelia coriacea (Magnoliaceae), a Critically Endangered Endemic in Southeast Yunnan, China [PDF]

open access: yes, 2012
Michelia coriacea, a critically endangered tree, has a restricted and fragmented distribution in Southeast Yunnan Province, China. The genetic diversity, genetic structure and gene flow in the three extant populations of this species were detected by 10 ...
Archak   +54 more
core   +3 more sources

The Effects of Forest Management Activities on Genetic Diversity of Forest Trees

open access: yesIndonesian Journal of Social and Environmental Issues, 2021
Genetic diversity helps to survive forest trees in several environmental changes and disease conditions. Different forest management activities such as harvesting, thinning, natural or artificial regeneration, seedlings or coppice forests, fragmentation,
Subash Gautam   +2 more
doaj   +1 more source

Population genetic structure of the parasite Anisakis simplex (s. s.) collected in Clupea harengus L. from North East Atlantic fishing grounds [PDF]

open access: yes, 2017
The Atlantic herring is a schooling, pelagic species that inhabits both sides of the North Atlantic Ocean. Herring stock identification is usually based on several approaches, including fish meristic characters, population genetic analysis and the use ...
Bao, Miguel   +10 more
core   +1 more source

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