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Titolo:
GEOSTATISTICS FOR SPATIAL GENETIC STRUCTURES - STUDY OF WILD POPULATIONS OF PERENNIAL RYEGRASS
Autore:
MONESTIEZ P; GOULARD M; CHARMET G;
Indirizzi:
INRA F-84140 MONTFAVET FRANCE INRA F-63039 CLERMONT FERRAND FRANCE
Titolo Testata:
Theoretical and Applied Genetics
fascicolo: 1, volume: 88, anno: 1994,
pagine: 33 - 41
SICI:
0040-5752(1994)88:1<33:GFSGS->2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
AUTO-CORRELATION ANALYSIS; AUTOCORRELATION ANALYSIS; GENOTYPES; SELECTION; DISTANCE; MODEL;
Keywords:
PERENNIAL RYEGRASS; POPULATION GENETICS; GEOSTATISTICS; SPATIAL AUTOCORRELATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
P. Monestiez et al., "GEOSTATISTICS FOR SPATIAL GENETIC STRUCTURES - STUDY OF WILD POPULATIONS OF PERENNIAL RYEGRASS", Theoretical and Applied Genetics, 88(1), 1994, pp. 33-41

Abstract

Methods based on geostatistics were applied to quantitative traits ofagricultural interest measured on a collection of 547 wild populations of perennial ryegrass in France. The mathematical background of these methods, which resembles spatial autocorrelation analysis, is briefly described. When a single variable is studied, the spatial structure analysis is similar to spatial autocorrelation analysis, and a spatialprediction method, called ''kriging'', gives a filtered map of the spatial pattern over all the sampled area. When complex interactions of agronomic traits with different evaluation sites define a multivariatestructure for the spatial analysis, geostatistical methods allow the spatial variations to be broken down into two main spatial structures with ranges of 120 km and 300 km, respectively. The predicted maps that corresponded to each range were interpreted as a result of the isolation-by-distance model and as a consequence of selection by environmental factors. Practical collecting methodology for breeders may be derived from such spatial structures.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 00:42:59