Results 271 to 280 of about 142,936 (307)
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Nature, 2001
The evolutionary divergence of a single species into two has never been directly observed in nature, primarily because speciation can take a long time to occur. A ring species, in which a chain of intergrading populations encircles a barrier and the terminal forms coexist without interbreeding, provides a situation in which variation in space can be ...
D E, Irwin, S, Bensch, T D, Price
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The evolutionary divergence of a single species into two has never been directly observed in nature, primarily because speciation can take a long time to occur. A ring species, in which a chain of intergrading populations encircles a barrier and the terminal forms coexist without interbreeding, provides a situation in which variation in space can be ...
D E, Irwin, S, Bensch, T D, Price
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Trends in Ecology & Evolution, 2012
In the Origin of Species, Darwin struggled with how continuous changes within a species lead to the emergence of discrete species. Molecular analyses have since identified nuclear genes and organelles that underpin speciation. In this review, we explore the microbiota as a third genetic component that spurs species formation.
Robert M, Brucker, Seth R, Bordenstein
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In the Origin of Species, Darwin struggled with how continuous changes within a species lead to the emergence of discrete species. Molecular analyses have since identified nuclear genes and organelles that underpin speciation. In this review, we explore the microbiota as a third genetic component that spurs species formation.
Robert M, Brucker, Seth R, Bordenstein
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Molecular Ecology, 2013
AbstractThe field of speciation has seen much renewed interest in the past few years, with theoretical and empirical advances that have moved it from a descriptive field to a predictive and testable one. The goal of this review is to provide a general background on research on speciation as it pertains to fishes.
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AbstractThe field of speciation has seen much renewed interest in the past few years, with theoretical and empirical advances that have moved it from a descriptive field to a predictive and testable one. The goal of this review is to provide a general background on research on speciation as it pertains to fishes.
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1986
There is considerable inferential evidence that the high density lipoproteins (HDL) of mammalian plasma should have greater structural and functional heterogeneity than has been so far established. It is likely that at least transitory progenitors of HDL originating from hepatic and intestinal cells will differ from one another, perhaps forming ...
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There is considerable inferential evidence that the high density lipoproteins (HDL) of mammalian plasma should have greater structural and functional heterogeneity than has been so far established. It is likely that at least transitory progenitors of HDL originating from hepatic and intestinal cells will differ from one another, perhaps forming ...
openaire +2 more sources