Résultat de la recherche
2 recherche sur le mot-clé 'Cardamine amara L.'
Affiner la recherche Générer le flux rss de la recherche
Partager le résultat de cette recherche
Ségrégation polarisée chez les hybrides naturels triploïdes (2n-24) entre Cardamine rivularis Schur (2n =16) et C. amara L. (2n=16) / Krystyna M. Urbanska (1976)
est un tiré à part de 125 (1-2) - 1978 (Bulletin de la Société botanique de France. Actualités botaniques)
Titre : Ségrégation polarisée chez les hybrides naturels triploïdes (2n-24) entre Cardamine rivularis Schur (2n =16) et C. amara L. (2n=16) Type de document : Tiré à part de revue Auteurs : Krystyna M. Urbanska (1935-) Année de publication : 1976 Importance : 3 p. Langues : Français (fre) Mots-clés : Cardamine amara L. Cardamine pratensis L. subsp. rivularis Résumé : A Urnerboden (Suisse) une population de Cardamine avec 2 espèces diploïdes à 2n = 16, C. rivularis et C. amara, montre des hybrides triploïdes à 2 génomes rivularis, qui sont très compétitifs; leur comportement caryologique a été suivi en culture expérimentale ainsi que leur descendance. Dans la station naturelle se sont réalisés des amphiploïdes RRRRAA à 2n = 48. Lien pérenne : DOI : 10.1080/01811789.1978.10826305 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=81446 Urbanska, KM. 1976. Ségrégation polarisée chez les hybrides naturels triploïdes (2n-24) entre Cardamine rivularis Schur (2n =16) et C. amara L. (2n=16). Bulletin de la Société botanique de France. Actualités botaniques, 125(1-2) : 3 p..Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 23222 Urbanska, K. Pré-publication Centre de documentation Tirés à part Consultable Documents numériques
Consultable
Article (1976)URL Comparative ITS and AFLP analysis of diploid cardamine (brassicaceae) taxa from closely related polyploid complexes / Karol Marhold in Annals of Botany, 93 (2004)
[article]
Titre : Comparative ITS and AFLP analysis of diploid cardamine (brassicaceae) taxa from closely related polyploid complexes Type de document : Imprimé Auteurs : Karol Marhold ; Judita Lihová ; Marián Perny ; Walter Bleeker Année de publication : 2004 Article en page(s) : 507-520 Langues : Anglais (eng) Catégories : [CBNPMP-Thèmes] Phylogénie (liens existant entre espèces apparentées) Mots-clés : Cardamine pratensis L. Cardamine raphanifolia Cardamine amara L. Résumé : Background and aims: Diploid representatives from the related polyploid complexes of Cardamine amara, C. pratensis and C. raphanifolia (Brassicaceae), were studied to elucidate phylogenetic relationships among the complexes and among the individual taxa included. Methods: Two independent molecular data sets were used: nucleotide sequences from the internal transcribed spacers (ITS) of nrDNA, and amplified fragment length polymorphism (AFLP) markers. Seventeen diploid taxa from the studied groups were sampled. Key results: Both ITS and AFLP analyses provided congruent results in inferred relationships, and revealed two main lineages. While the C. amara group, consisting of C. wiedemanniana and four subspecies of C. amara, was resolved as a well-supported monophyletic group, taxa from the C. pratensis and C. tenera groups (the latter representing diploid taxa of the complex of C. raphanifolia) all appeared together in a single clade/cluster with no support for the recognition of either of the groups. Intra-individual polymorphisms and patterns of nucleotide variation in the ITS region in C. uliginosa and C. tenera, together with the distribution of AFLP bands, indicate ancient hybridization and introgression among these Caucasian diploids. Conclusions: The lack of supported hierarchical structure suggests that extensive reticulate evolution between these groups, even at the diploid level, has occurred (although an alternative explanation, namely ancestral polymorphism in ITS data, cannot be completely excluded). Several implications for the investigation of the polyploid complexes of concern are drawn. When tracing origins of polyploid taxa, a much more complex scenario should be expected, taking into account all relatives as potential parents, irrespective of the group in which they are classified.
Lien pérenne : DOI : 10.1093/aob/mch073 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=149111
in Annals of Botany > 93 (2004) . - 507-520Marhold, K., Lihová, J., Perny, M., Bleeker, W. 2004. Comparative ITS and AFLP analysis of diploid cardamine (brassicaceae) taxa from closely related polyploid complexes. Annals of Botany, 93: 507-520.Documents numériques
Consultable
Article (2004)URL