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 ...
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adaptive adaptive radiation allele frequency allozyme Amer amino acid ancestor animals average behavior biological birds bristle number caused cells Chapter characters chromosome cladistic coefficient coevolution competition copies correlated deleterious developmental differentiation distribution divergence Dobzhansky Drosophila melanogaster ecological effect environment environmental enzyme equilibrium evidence evolutionary change evolved example extinction rate factors favor females Figure fitness fossil record function Futuyma gametes gene conversion gene flow gene frequencies genetic drift genetic variation genome genotypes geographic groups habitats heritability heterozygotes heterozygous higher taxa homozygotes homozygous host human hybrid inbreeding increase individual insects interactions Lewontin linkage disequilibrium loci locus males mammals mating mechanisms molecular morphological mutation natural selection nucleotide occur offspring organisms pairs parasites pattern phenotype phylogenetic phylogeny plants polymorphism predators prey proteins pseudogenes random recombination relative reproductive isolation sequence sexual similar speciation structure survival sympatric taxon theory tion trait transposable elements variable variance