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Correlations between species traits and allozyme diversity: implications for conservation biology / James Lewis Hamrick (1991)

Public Citation est un extrait de Genetics and conservation of rare plants / Donald A. Falk (1991) Titre : Correlations between species traits and allozyme diversity: implications for conservation biology Type de document : Extrait d'ouvrage Auteurs : James Lewis Hamrick ; Mary Jo W. Godt ; D. A. Murawski ; Marilyn D. Loveless (1949-) Année de publication : 1991 Importance : p. 75-86 Langues : Français (fre) Catégories : [CBNPMP-Thématique] Variabilité en protéines, polymorphisme enzymatique [CBNPMP-Thématique] Structures des populations végétales Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=84383 Hamrick, James Lewis, Godt, Mary Jo W., Murawski, D. A., Loveless, Marilyn D. (1949-) 1991 Correlations between species traits and allozyme diversity: implications for conservation biology. In: Genetics and conservation of rare plants. Oxford University Press, New-York: 75-86.

Genetic organization and evolutionary history in two North American species of Cirsium / Marilyn D. Loveless in Evolution, 42 (1988) 

Public Citation [article]  inEvolution > 42 (1988) . - 254-265 Titre : Genetic organization and evolutionary history in two North American species of Cirsium Type de document : Imprimé Auteurs : Marilyn D. Loveless (1949-) ; James Lewis Hamrick Année de publication : 1988 Article en page(s) : 254-265 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Génétique (espèce) Mots-clés : Cirsium Résumé : Relationships involving progenitor and derivative species pairs have been documented for a number of plant taxa. In this study, we used starch‐gel electrophoresis to examine the probable relationship between Cirsium pitcheri, an endemic thistle restricted to the shorelines of the Great Lakes, and Cirsium canescens, a closely related species of the central Great Plains (U.S.A.). The species shared the same enzyme loci but differed greatly in levels of genetic diversity. C. pitcheri was genetically much less variable than its congener, with fewer polymorphic loci and significantly lower heterozygosity. The genetic variation in C. pitcheri represents a depauperate subset of the alleles present in C. canescens, consistent with the hypothesis that the two species represent a progenitor‐derivative species pair. We suggest that C. pitcheri migrated into newly created dune habitats in the Great Lakes region near the end of the Wisconsin glaciation and that its low genetic variability results from repeated and probably prolonged population bottlenecks which accompanied its movement. Lien pérenne : DOI : 10.1111/j.1558-5646.1988.tb04130.x Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=136987 Loveless, Marilyn D. (1949-), Hamrick, James Lewis 1988 Genetic organization and evolutionary history in two North American species of Cirsium. Evolution, 42: 254-265.

Documents numériques

Consultable article (1988) URL