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Glacial history of the alpine herb Rumex Nivalis (Polygonaceae): a comparison of common phylogeographic methods with nested clade analysis / Ivana Stehlik in American Journal of Botany, 89 (12) (December 2002)
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Titre : Glacial history of the alpine herb Rumex Nivalis (Polygonaceae): a comparison of common phylogeographic methods with nested clade analysis Type de document : Imprimé Auteurs : Ivana Stehlik (1971-) Année de publication : 2002 Article en page(s) : 2007-2016 Langues : Anglais (eng) Catégories : [CBNPMP-Thèmes] Phylogénie (liens existant entre espèces apparentées) Mots-clés : Rumex nivalis Résumé : The glacial history of the alpine herb Rumex nivalis was investigated using amplified fragment length polymorphisms (AFLPs) and restriction fragment length polymorphisms with polymerase chain reaction (PCR-RFLPs) of cpDNA. Both traditional statistical methods widely applied in phylogeographic research and nested clade analysis were used. The AFLPs indicated little geographic structure probably due to the wind-pollinated reproductive system of the dioecious R. nivalis. Because cpDNA haplotypes exhibited distinct distributional patterns, correlation between AFLPs and PCR-RFLPs was low. The results of common statistical methods and of nested clade analysis were largely congruent. Both supported in situ survival of one group of common haplotypes in the Central Alps. For another group of common haplotypes, classical phylogeographic analyses gave strong evidence for survival in peripheral refugia at the northern alpine border, whereas this conclusion was not as clearly supported in the nested clade analysis. Nested clade analysis provided several detailed insights on past and ongoing populational demographic processes. Thus, it is a valuable tool in the phylogeographical analysis of haplotype data, but it should preferably be combined with other statistical analyses. In situations with low genetic variation in cpDNA, classical phylogeographic analytical tools on nuclear DNA will still be the methods of choice. Lien pérenne : DOI : 10.3732/ajb.89.12.2007 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=148969
in American Journal of Botany > 89 (12) (December 2002) . - 2007-2016Stehlik, Ivana (1971-) 2002 Glacial history of the alpine herb Rumex Nivalis (Polygonaceae): a comparison of common phylogeographic methods with nested clade analysis. American Journal of Botany, 89(12): 2007-2016.Documents numériques
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