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Titolo:
PHYLOGEOGRAPHIC STRUCTURE OF WHITE OAKS THROUGHOUT THE EUROPEAN CONTINENT
Autore:
DUMOLINLAPEGUE S; DEMESURE B; FINESCHI S; LECORRE V; PETIT RJ;
Indirizzi:
INRA,LAB GENET & AMELIORAT ARBRES FORESTIERS,BP 45 F-33611 GAZINET FRANCE INRA,LAB GENET & AMELIORAT ARBRES FORESTIERS F-33611 GAZINET FRANCE EIDGENOSS FORSCH ANSTALT WALD SCHNEE & LANDSCHAFT CH-8903 BIRMENSDORFSWITZERLAND
Titolo Testata:
Genetics
fascicolo: 4, volume: 146, anno: 1997,
pagine: 1475 - 1487
SICI:
0016-6731(1997)146:4<1475:PSOWOT>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHLOROPLAST DNA POLYMORPHISM; POPULATION-STRUCTURE; UNIVERSAL PRIMERS; NONCODING REGIONS; GENE DIVERSITY; MITOCHONDRIAL; HISTORY; PLANTS; RATES; AMPLIFICATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
52
Recensione:
Indirizzi per estratti:
Citazione:
S. Dumolinlapegue et al., "PHYLOGEOGRAPHIC STRUCTURE OF WHITE OAKS THROUGHOUT THE EUROPEAN CONTINENT", Genetics, 146(4), 1997, pp. 1475-1487

Abstract

Patterns of chloroplast DNA (cpDNA) variation were studied in eight white oak species by sampling 345 populations throughout Europe. The detection of polymorphisms by restriction analysis of PCR-amplified cpDNA fragments allowed the identification of 23 haplotypes that were phylogenetically ordered. A systematic hybridization and introgression between the eight species studied is evident. The levels of subdivision for unordered (G(ST)) and ordered (N-ST) alleles are very high and close (0.83 and 0.85). A new statistical approach to the quantitative study of phylogeography is presented, which relies on the coefficients of differentiation G(ST) and N-ST and the Mantel's test. Based on pairwise comparisons between populations, the significance of the difference between both coefficients is evaluated at a global and a local scale. The mapped distribution of the haplotypes indicates the probable routes of postglacial recolonization followed by oak populations that had persisted in southern refugia, especially in the Iberian peninsula, Italy and the Balkans. Most cpDNA polymorphisms appear to be anterior to the beginning of the last recolonization. A subset of the preexisting haplotypes have merely expanded north, while others were left behind in the south.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 08:03:22