Results 281 to 290 of about 225,307 (327)
Effects of different cropping patterns on speciation distribution of soil heavy metals Pb and Cd
, 2015 LI Fu-ron
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Nature, 2007
Botanists have long believed that hybrid speciation is important, especially after chromosomal doubling (allopolyploidy). Until recently, hybridization was not thought to play a very constructive part in animal evolution. Now, new genetic evidence suggests that hybrid speciation, even without polyploidy, is more common in plants and also animals than ...
J. Mallet
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Botanists have long believed that hybrid speciation is important, especially after chromosomal doubling (allopolyploidy). Until recently, hybridization was not thought to play a very constructive part in animal evolution. Now, new genetic evidence suggests that hybrid speciation, even without polyploidy, is more common in plants and also animals than ...
J. Mallet
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Species divergence with gene flow and hybrid speciation on the Qinghai-Tibet Plateau.
New Phytologist, 2022The Qinghai-Tibet Plateau (QTP) sensu lato (sl), comprising the platform, the Himalaya, and the Hengduan Mountains, is characterized by a high number of endemic plant species.
Shengdan Wu +4 more
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Current Opinion in Genetics & Development, 2004
Until recently, the genes that cause reproductive isolation remained black boxes. Consequently, evolutionary biologists were unable to answer several questions about the identities and characteristics of "speciation genes". Over the past few years, however, evolutionary geneticists have finally succeeded in isolating several such genes, providing our ...
H Allen, Orr +2 more
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Until recently, the genes that cause reproductive isolation remained black boxes. Consequently, evolutionary biologists were unable to answer several questions about the identities and characteristics of "speciation genes". Over the past few years, however, evolutionary geneticists have finally succeeded in isolating several such genes, providing our ...
H Allen, Orr +2 more
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Speciation of Cu Surfaces During the Electrochemical CO Reduction Reaction.
Journal of the American Chemical Society, 2020Cu-catalyzed selective electrocatalytic upgrading of carbon dioxide/monoxide to valuable multicarbon oxygenates and hydrocarbons is an attractive strategy for combatting climate change.
Yaran Zhao +6 more
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Chemical Speciation, Plant Uptake, and Toxicity of Heavy Metals in Agricultural Soils.
Journal of Agricultural and Food Chemistry, 2020Heavy metals in agricultural soils exist in diverse dissolved (free cations and complexed species of positive, neutral, or negative charges), particulate (sorbed, structural, and co-precipitated), and colloidal (micro- and nanometer-sized particles ...
Minori Uchimiya +5 more
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Speciation across the Tree of Life
Biological Reviews of The Cambridge Philosophical Society, 2021Much of what we know about speciation comes from detailed studies of well‐known model systems. Although there have been several important syntheses on speciation, few (if any) have explicitly compared speciation among major groups across the Tree of Life.
T. Hernández-Hernández +3 more
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Cold Spring Harbor Perspectives in Biology
What drives the emergence of new species has fascinated biologists since Darwin. Reproductive barriers to gene flow are a key step in the formation of species, and recent advances have shed new light on how these are established. Genetic, genomic, and comparative techniques, together with improved theoretical frameworks, are increasing our ...
Peichel, C.L. +4 more
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What drives the emergence of new species has fascinated biologists since Darwin. Reproductive barriers to gene flow are a key step in the formation of species, and recent advances have shed new light on how these are established. Genetic, genomic, and comparative techniques, together with improved theoretical frameworks, are increasing our ...
Peichel, C.L. +4 more
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TAXON, 1969
SummaryA discussion of speciation subsumes that we know what a species is, which operationally is true. Populations that are physiologically incapable of gene exchange and are phenotypically distinguishable pose no problem at the species level. When barriers are not absolute or when they are complete but the phenotypic differences are inconspicuous one
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SummaryA discussion of speciation subsumes that we know what a species is, which operationally is true. Populations that are physiologically incapable of gene exchange and are phenotypically distinguishable pose no problem at the species level. When barriers are not absolute or when they are complete but the phenotypic differences are inconspicuous one
openaire +2 more sources