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 415
... neoteny , a decrease in the rate of development of y relative to x , a juvenile condition ( pae- domorphosis ) of character y but not of x is expressed in the adult . C - вс α D log x α log x B Hypermorphosis leading to peramorphosis ...
... neoteny , a decrease in the rate of development of y relative to x , a juvenile condition ( pae- domorphosis ) of character y but not of x is expressed in the adult . C - вс α D log x α log x B Hypermorphosis leading to peramorphosis ...
Pagina 417
... neoteny is prevalent in many groups of sal- amanders , in which juvenile features such as gills are retained in the sexually Hyracotherium ( Eocene ) Merychippus ( Miocene ) Mesohippus ( Oligocene ) Equus ( Recent ) FIGURE 16 Skulls of ...
... neoteny is prevalent in many groups of sal- amanders , in which juvenile features such as gills are retained in the sexually Hyracotherium ( Eocene ) Merychippus ( Miocene ) Mesohippus ( Oligocene ) Equus ( Recent ) FIGURE 16 Skulls of ...
Pagina 418
... neotenic salamanders retain the juvenile state ( Tompkins 1978 ) ; evolution is mosaic even when it occurs by neoteny . Many neotenic lineages ( such as Amphiuma ; Figure 17D ) have evolved additional species - specific features that ...
... neotenic salamanders retain the juvenile state ( Tompkins 1978 ) ; evolution is mosaic even when it occurs by neoteny . Many neotenic lineages ( such as Amphiuma ; Figure 17D ) have evolved additional species - specific features that ...
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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