Evolutionary BiologySinauer Associates, 1986 - 600 pagine Covers the genetic, developmental, and ecological mechanisms of evolutionary change, the major features of evolutionary history as revealed by phylogenetic and paleontological studies, and material on adaptation, molecular evolution, co-evolution, and human evolution. |
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Pagina 114
... hybrids between species of parasitic wasps ( Aphytis ) were accepted by hybrid females but not by females of either parent form . Hybrid sterility can have a chromosomal or a genic basis , although the dis- tinction sometimes breaks ...
... hybrids between species of parasitic wasps ( Aphytis ) were accepted by hybrid females but not by females of either parent form . Hybrid sterility can have a chromosomal or a genic basis , although the dis- tinction sometimes breaks ...
Pagina 115
... HYBRID ZONE that can persist for long periods of time . In northeastern South America a hybrid zone between two forms of the mimetic butterfly Heliconius has existed for at least 200 years ( 2000 generations ) , but is only about 50 ...
... HYBRID ZONE that can persist for long periods of time . In northeastern South America a hybrid zone between two forms of the mimetic butterfly Heliconius has existed for at least 200 years ( 2000 generations ) , but is only about 50 ...
Pagina 243
... hybrid is low and the initial frequency of er- rors in mating is also low . " Flow " is the level of gene flow between the populations , at the levels of mating error and hybrid fitness in- dicated . The higher the initial degree of in ...
... hybrid is low and the initial frequency of er- rors in mating is also low . " Flow " is the level of gene flow between the populations , at the levels of mating error and hybrid fitness in- dicated . The higher the initial degree of in ...
Sommario
CONCEPTIONS AND MISCONCEPTIONS | 7 |
EVOLUTION SINCE THE SYNTHESIS | 13 |
ADAPTATION AND ENVIRONMENT | 19 |
Copyright | |
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adaptive advantage allele allele frequency animals appear arise associated average become behavior biological cause cells Chapter characteristics characters chromosome common competition condition conversion copies correlation depends determined developmental differentiation distribution divergence Drosophila ecological effect elements environment enzyme equilibrium evidence evolution evolutionary evolved example exist expression extinction factors Figure fitness fossil frequency function gene genetic genetic drift genome genotypes geographic greater groups growth higher host human hybrid important increase individual insects interactions isolation less linkage loci locus lower major males mating mean mechanisms morphological mutation natural selection occur organisms origin pairs pattern phenotypic plants Pleistocene polymorphism population possible predators Press probability proteins reduced region relationships relative represent reproductive response sequence similar single speciation species structure taxa term theory tion traits variance variation vary