Results 31 to 40 of about 5,399,182 (405)
Journal of Nematology, 2023 Barley root-knot nematode, Meloidogyne naasi Franklin, 1965, is one of the most important pest nematodes infecting monocots (Franklin, 1965). Two-inch core soil samples collected from a golf course in Ada County, Idaho were submitted for identification ...
Skantar Andrea M. +3 more
doaj +1 more source
Climatic niche and neutral genetic diversity of the six Iberian pine species: a retrospective and prospective view [PDF]
, 2010 Quaternary climatic fluctuations have left contrasting historical footprints on the neutral genetic diversity patterns of existing populations of different tree species.
Soto de Viana, Álvaro
core +2 more sources
Recombination and Genetic Diversity
Trends in Computational and Applied Mathematics, 2012 In this paper we present a spatial stochastic model for genetic recombination, that answers if diversity is preserved in an infinite population of recombinating individuals distributed spatially. We show that, for finite times, recombination may maintain all the various potential different types, but when time grows infinitely, the diversity of ...
Coutinho, T. C. +2 more
openaire +6 more sources
Top Ten Most Important U.S.-Regulated and Emerging Plant-Parasitic Nematodes
Horticulturae, 2022 Plant-parasitic nematodes (PPNs) are important pests that cause an estimated ten billion dollars of crop loss each year in the United States and over 100 billion dollars globally.
Mihail Kantor +3 more
doaj +1 more source
High Genetic Diversity and Low Differentiation of Michelia coriacea (Magnoliaceae), a Critically Endangered Endemic in Southeast Yunnan, China [PDF]
, 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
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Levels of genetic polymorphism: marker loci versus quantitative traits [PDF]
, 1998 Species are the units used to measure ecological diversity and alleles are the units of genetic diversity. Genetic variation within and among species has been documented most extensively using allozyme electrophoresis.
Butlin R. K. +9 more
core +3 more sources
Genetic Diversity of Toscana Virus [PDF]
Emerging Infectious Diseases, 2009 Distribution of Toscana virus (TOSV) is evolving with climate change, and pathogenicity may be higher in nonexposed populations outside areas of current prevalence (Mediterranean Basin). To characterize genetic diversity of TOSV, we determined the coding sequences of isolates from Spain and France.
Collao, Ximena +10 more
openaire +5 more sources
Genome analysis of the ubiquitous boxwood pathogen Pseudonectria foliicola [PDF]
PeerJ, 2018 Boxwood (Buxus spp.) are broad-leaved, evergreen landscape plants valued for their longevity and ornamental qualities. Volutella leaf and stem blight, caused by the ascomycete fungi Pseudonectria foliicola and P.
Yazmín Rivera +4 more
doaj +2 more sources
Chloroplast microsatellites: measures of genetic diversity and the effect of homoplasy [PDF]
, 2005 Chloroplast microsatellites have been widely used in population genetic studies of conifers in recent years. However, their haplotype configurations suggest that they could have high levels of homoplasy, thus limiting the power of these molecular markers.
Doyle JJ +15 more
core +3 more sources
Nation Formation and Genetic Diversity [PDF]
SSRN Electronic Journal, 2006 This paper presents a model of nation formation in which culturally heterogeneous agents vote on the optimal level of public spending. Larger nations benefit from increasing returns in the provision of public goods, but bear the costs of greater cultural heterogeneity. This tradeoff induces agents' preferences over different geographical configurations,
Desmet, Klaus +3 more
openaire +6 more sources