Evolutionary BiologyFutuyma (ecology and evolution, SUNY Stony Brook) covers such subject areas as phylogeny, paleobiology, genetic mechanisms of change and speciation, character evolution, the theory of processes and macroevolution, and new molecular perspectives. Numerous line drawings, charts, diagrams, and maps are provided. Annotation copyrighted by Book News, Inc., Portland, OR |
Dall'interno del libro
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Pagina 273
Thus among a series of initially identical colonies ( bean bags ) that all started with the same gene frequency p , the mean gene frequency after one generation is still p , but the colonies vary to the extent p ( 1 - p ) / 2N ; and the ...
Thus among a series of initially identical colonies ( bean bags ) that all started with the same gene frequency p , the mean gene frequency after one generation is still p , but the colonies vary to the extent p ( 1 - p ) / 2N ; and the ...
Pagina 316
A Gene Frequency Change under Selection Suppose we have these genotypes with these fitnesses : Genotype Frequency Fitness ( w ) dw / dq Then the average fitness is w = p2 + 2pq ( 1 − s1 ) + q2 ( 1 − $ 2 ) = 12pqs , q2s2 - = 125,9 + 25 ...
A Gene Frequency Change under Selection Suppose we have these genotypes with these fitnesses : Genotype Frequency Fitness ( w ) dw / dq Then the average fitness is w = p2 + 2pq ( 1 − s1 ) + q2 ( 1 − $ 2 ) = 12pqs , q2s2 - = 125,9 + 25 ...
Pagina 328
For example , there may often be a frequency - dependent component to selection in a patchy environment . ... Allele frequencies can be simultaneously affected by mutation rates , by gene flow , by genetic drift , and by one or more ...
For example , there may often be a frequency - dependent component to selection in a patchy environment . ... Allele frequencies can be simultaneously affected by mutation rates , by gene flow , by genetic drift , and by one or more ...
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Sommario
A Synopsis of Evolutionary Theory | 19 |
Heredity and Development | 33 |
The Ecological Context of Evolutionary Change | 51 |
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AA AA adaptive advantageous alleles alterations ancestor animals appear arise associated average become behavior biological birds body bristle cause cent Chapter character characteristics chromosome common complex consists depends derived determined developmental differentiation direction Discuss distribution diversity dominant drift Drosophila ecological effect environment environmental enzyme equilibrium evidence evolution evolutionary evolved example exist extinction factors Figure fitness fossil function gene flow gene frequency genetic genetic variation genotypes geographic greater growth heterozygotes higher highly human hybrid important increase individuals insects instances interactions isolated kinds less loci locus major males mating mean mechanisms mutation natural selection occur offspring organisms origin patterns phenotypic plants Pleistocene polymorphic population possible predators present probability produce recombination relative reproduction response sexual similar single speciation species structure theory tion variance vary