Evolutionary BiologyOxford University Press, Incorporated, 1979 - 565 pagine Futuyma (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 193
... pollen of another , and differences in flower color and form that induce different pollinating animals to serve the different species or prevent them from transferring pollen from one species to another . Under natural conditions ...
... pollen of another , and differences in flower color and form that induce different pollinating animals to serve the different species or prevent them from transferring pollen from one species to another . Under natural conditions ...
Pagina 271
... pollen from one flower to another on the same plant is genetically the same as doing . it within a single flower . But even in such plants there are many ways of reducing the likelihood of selfing . Stigmas commonly are receptive to pollen ...
... pollen from one flower to another on the same plant is genetically the same as doing . it within a single flower . But even in such plants there are many ways of reducing the likelihood of selfing . Stigmas commonly are receptive to pollen ...
Pagina 408
... pollen in 1946 , but by 1955 the majority of such plants had more than 80 per cent viable pollen . In the evolutionary literature both premating and postmating bar- riers have usually been included under the single rubric isolating mech ...
... pollen in 1946 , but by 1955 the majority of such plants had more than 80 per cent viable pollen . In the evolutionary literature both premating and postmating bar- riers have usually been included under the single rubric isolating mech ...
Sommario
A Synopsis of Evolutionary Theory | 19 |
Heredity and Development | 33 |
The Ecological Context of Evolutionary Change | 51 |
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AA AA AA adaptive adaptive radiation advantageous alleles ancestor arise artificial selection average become behavior biological birds bristle number cent Chapter character characteristics chromosome coefficient complex correlated deleterious depends developmental differentiation distribution diversity Dobzhansky dominant Drosophila ecological effect environment environmental enzyme epistasis epistatic equilibrium evidence evolutionary change evolved example extinction factors females Figure fitness flies fossil record function gametes gene flow gene frequency genetic change genetic drift genetic variation genome genotypes geographic habitats heterozygotes heterozygous homozygotes homozygous host human hybrid inbreeding increase individuals insects interactions less Lewontin linkage disequilibrium loci locus major males mammals mating Mayr mechanisms morphological mutation rates natural selection niche number of species occur offspring organisms overdominance patterns phenotypic phylogenetic plants pollen polymorphic population predators probability protein random rate of evolution recombination reproductive isolation response sexual similar single speciation structure survival sympatric theory tion traits variance vary