Crataegus monogyna Jacq. and C. laevigata (Poir.) DC. (Rosaceae, Maloideae) display low level of genetic diversity assessed by chloroplast markers (Articolo in rivista)

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  • Crataegus monogyna Jacq. and C. laevigata (Poir.) DC. (Rosaceae, Maloideae) display low level of genetic diversity assessed by chloroplast markers (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Alternative label
  • Fineschi S., Salvini D., Turchini D., Pastorelli R., Vendramin G.G. (2005)
    Crataegus monogyna Jacq. and C. laevigata (Poir.) DC. (Rosaceae, Maloideae) display low level of genetic diversity assessed by chloroplast markers
    in Plant systematics and evolution
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Fineschi S., Salvini D., Turchini D., Pastorelli R., Vendramin G.G. (literal)
Pagina inizio
  • 187 (literal)
Pagina fine
  • 196 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 250 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR Istituto per la Protezione delle Piante, Polo Scientifico Sesto Fiorentino via Madonna del Piano Edificio E, 50019 Sesto Fiorentino, Firenze, Italy CNR Istituto di Biologia Agroambientale e Forestale, via Marconi 2, I-05010 Porano – TR, Italy CNR Istituto di Genetica Vegetale, Sezione di Firenze, Via Madonna del Piano, 50019 Sesto Fiorentino, Firenze, Italy (literal)
Titolo
  • Crataegus monogyna Jacq. and C. laevigata (Poir.) DC. (Rosaceae, Maloideae) display low level of genetic diversity assessed by chloroplast markers (literal)
Abstract
  • Twenty one of European populations C. monogyna and nine C. laevigata were examined to quantify genetic diversity at chloroplast DNA. PCR-RFLP and microsatellites (SSR) were analysed by PCR using conserved primers. The average within population gene diversity (hS), the total gene diversity (hT), and the differentiation for unordered alleles (GST) and for ordered alleles (NST) were measured. For those populations where both species were present, an introgression ratio (IG) was calculated. Four different haplotypes were detected, one of them very common (85% in C. monogyna and 75% in C. laevigata populations) and distributed over the whole range. The value of the introgression ratio is close to one (IG=0.83), indicating that the haplotypic variation is largely species-independent. The level of differentiation between C. monogyna (GST=0.241) and C. laevigata (GST=0.430) populations indicates a very efficient seed dispersal mechanism. Moreover, the difference between GST and NST for both species is not significant, demonstrating that the phylogeographic structure is weak or absent. (literal)
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