Evolutionary BiologyCovers 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 131
5 Gene frequency 0 . 5 Gene frequency Gene frequency FIGURE 7 ( A )
Probability distribution of allele frequencies between 0 and 1 under genetic drift
when the initial allele frequency is 0 . 5 . ( B ) Same , with initial allele frequency 0
. 1 .
5 Gene frequency 0 . 5 Gene frequency Gene frequency FIGURE 7 ( A )
Probability distribution of allele frequencies between 0 and 1 under genetic drift
when the initial allele frequency is 0 . 5 . ( B ) Same , with initial allele frequency 0
. 1 .
Pagina 138
Let qo be the allele frequency in generation 0 , and qi the allele frequency a
generation later . Then within the local population , qı = ( 1 – m ) qo + mqm , and
the change in gene frequency in a single generation is Aq = 91 – 9o = - m ( 90 –
9m ) ...
Let qo be the allele frequency in generation 0 , and qi the allele frequency a
generation later . Then within the local population , qı = ( 1 – m ) qo + mqm , and
the change in gene frequency in a single generation is Aq = 91 – 9o = - m ( 90 –
9m ) ...
Pagina 156
Allele Frequency Change by Natural Selection frequency , as is in fact the case (
Chapter 4 ) . A deleterious dominant allele has no such protection , however ,
and such alleles are seldom found in natural populations , although they have ...
Allele Frequency Change by Natural Selection frequency , as is in fact the case (
Chapter 4 ) . A deleterious dominant allele has no such protection , however ,
and such alleles are seldom found in natural populations , although they have ...
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Sommario
CONCEPTIONS AND MISCONCEPTIONS | 7 |
ADAPTATION AND ENVIRONMENT | 19 |
COMPLEX INTERACTIONS AMONG SPECIES | 34 |
Copyright | |
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adaptive advantage allele allele frequency America appear arise associated average become behavior biological birds caused Chapter characteristics characters chromosome common competition conversion copies correlation depends described determined developmental differentiation direct 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 genotypes geographic greater groups growth higher host human hybrid important increase individual insects interactions isolation less lineage loci locus lower major males mating mean mechanisms morphological mutation natural selection occur organisms origin pairs pattern phenotype plants Pleistocene polymorphism population possible predators probability reduced region relationships relative represent reproductive response separate sequence similar single speciation species structure taxa term theory tion trait usually variance variation vary
Informazioni bibliografiche
| Titolo | Evolutionary Biology |
| Autore | Douglas J. Futuyma |
| Edizione | 2, illustrata |
| Editore | Sinauer Associates, 1986 |
| Provenienza dell'originale | la University of Michigan |
| Digitalizzato | 27 gen 2010 |
| ISBN | 0878931880, 9780878931880 |
| Lunghezza | 600 pagine |
| Esporta citazione | BiBTeX EndNote RefMan |