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Titolo:
A COMPARISON OF ALTERNATIVE STRATEGIES FOR ESTIMATING GENE FLOW FROM GENETIC-MARKERS
Autore:
NEIGEL JE;
Indirizzi:
UNIV SW LOUISIANA,DEPT BIOL,BOX 42451 LAFAYETTE LA 70504
Titolo Testata:
Annual review of ecology and systematics
, volume: 28, anno: 1997,
pagine: 105 - 128
SICI:
0066-4162(1997)28:<105:ACOASF>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
EFFECTIVE POPULATION-SIZE; CHLOROPLAST-DNA VARIATION; ANIMAL MITOCHONDRIAL-DNA; POLYMERASE CHAIN-REACTION; AUTO-CORRELATION ANALYSIS; STEPWISE MUTATION MODEL; FINITE ISLAND MODEL; DROSOPHILA-MELANOGASTER; NATURAL-POPULATIONS; SPATIAL AUTOCORRELATION;
Keywords:
GENE FLOW; MIGRATION; DISPERSAL; F STATISTICS; POPULATION STRUCTURE;
Tipo documento:
Review
Natura:
Periodico
Citazioni:
138
Recensione:
Indirizzi per estratti:
Citazione:
J.E. Neigel, "A COMPARISON OF ALTERNATIVE STRATEGIES FOR ESTIMATING GENE FLOW FROM GENETIC-MARKERS", Annual review of ecology and systematics, 28, 1997, pp. 105-128

Abstract

The estimation of gene flow from the distribution of genetic markers in populations requires an indirect approach. Gene flow parameters aredefined by demographic models, and population genetic models provide the link between these parameters and the distributions of genetic markers. Following the introduction of allozyme methods in the 1960s, a standard approach to the estimation of gene how was developed. Wright'sisland model of population structure was used to relate the distribution of allozyme alleles in populations to N(e)m, the product of the effective population size and the rate of migration. Alternative strategies for the estimation of gene flow have been developed using different genetic markers, different models of demography and population genetics, and different methods of parameter estimation. No alternative strategy now available is clearly superior to the standard approach basedon Wright's model and allozyme markers. However, this may soon changeas methods are developed that fully utilize the genealogical relationships of DNA sequences. At present, alternative strategies do fill important needs. They can provide independent estimates of gene how, measure different components of gene flow, and detect historical changes in population structure.

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Documento generato il 05/12/20 alle ore 00:33:49