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Journal of Saudi Chemical Society, 2020 The present study reports an environmental benign route for the synthesis of palladium nanoparticles (Pd NPs) using agro-waste empty cotton boll peels aqueous extract for the first time.
Boya Palajonnala Narasaiah +1 more
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Mechanisms of Speciation [PDF]
International Journal of Evolutionary Biology, 2012 “Speciation” was largely “speculation” two decades ago, at least with respect to a detailed and comprehensive mechanistic understanding of the origin of new species. Despite elegant classical work examining the genetic basis of interspecific differences and reproductive isolation and complementary studies of the ecological factors that can contribute ...
Sawamura, Kyoichi +3 more
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How might epigenetics contribute to ecological speciation? [PDF]
, 2013 Speciation research has seen a renewed interest in ecological speciation, which emphasises divergent ecological selection leading to the evolution of reproductive isolation.
Ritchie, Michael G., Smith, Gilbert
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SPECIATION AND MACROEVOLUTION [PDF]
Evolution, 1982 Species and higher taxa represent, phenomenologically, two very different levels in the hierarchical organization of the living world. Ever since there has been a concept of evolution, there has been the problem how one can get from the species level to that of the higher categories.
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Science, 2007 Like the formation of animal species, plant speciation is characterized by the evolution of barriers to genetic exchange between previously interbreeding populations. Prezygotic barriers, which impede mating or fertilization between species, typically contribute more to total reproductive isolation in plants than do postzygotic barriers, in which ...
Loren H, Rieseberg, John H, Willis
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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 ...
Orr, H.A., Masly, J-P., Presgraves, D.C.
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A screen for recessive speciation genes expressed in the gametes of F1 hybrid yeast [PDF]
, 2007 Diploid hybrids of Saccharomyces cerevisiae and its closest relative, Saccharomyces paradoxus, are viable, but the sexual gametes they produce are not.
Greig, D +3 more
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Evolution and speciation [PDF]
, 2008 Charles Darwin is the father of evolution as we know it today. In his book “The origin of species” he states that new species originate from ancestral species that change over time, and that the mechanism of the change is natural selection.
Boddum, Tina
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Little ecological divergence associated with speciation in two African rain forest tree genera [PDF]
, 2011 Background The tropical rain forests (TRF) of Africa are the second largest block of this biome after the Amazon and exhibit high levels of plant endemism and diversity. Two main hypotheses have been advanced to explain speciation processes that have led
Porter-Morgan, H. +19 more
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Speciation and phylogeography in the cosmopolitan marine moon jelly, Aurelia sp. [PDF]
, 2005 Background: The cosmopolitan moon jelly Aurelia is characterized by high degrees of morphological and ecological plasticity, and subsequently by an unclear taxonomic status. The latter has been revised repeatedly over the last century, dividing the genus
Jarms, Gerhard +3 more
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