The genus Artemisia (Asteraceae: Anthemideae) at a continental crossroads: molecular insights into migrations, disjunctions, and reticulations among Old and New World species from a Beringian perspective

Molecular Phylogenetics and Evolution
Chance W Riggins, David S Seigler

Abstract

Artemisia is the largest genus (ca. 350-500+ spp.) in the tribe Anthemideae and is composed of ecologically, morphologically, and chemically diverse species that are found primarily throughout the Northern Hemisphere. Two major centers of diversity for the genus are located in Eurasia and western North America, but phytogeographic links connecting these two regions are observed all across the North Pacific Rim and adjacent areas in the Arctic, including many islands and archipelagos. Previous phylogenetic studies have helped to clarify major lineages and identify likely sister relationships, but many questions remain unanswered regarding the relationships and migration history of New and Old World species. Here we investigate the phylogenetics of Artemisia within a biogeographic context centered in the Beringian Region and offer new hypotheses concerning species relationships, migration history, and the likely role of reticulate evolution in the genus. Our sampling included many new taxa and emphasized multiple accessions of widespread species, species from proposed refugia, and species with disjunct/vicariant distributions. The ITS phylogeny contained 173 accessions (94 new and 79 from GenBank) and indicated that Artemisia is ...Continue Reading

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Citations

Nov 8, 2015·Molecular Phylogenetics and Evolution·Xiu-Qun LiuJun Wen
Jul 26, 2013·Nature·Rajinder SinghRavigadevi Sambanthamurthi
Dec 10, 2020·Clinical and Translational Allergy·Lan ZhaoRonald van Ree
Dec 16, 2018·Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie·Ikram Dib, Fatima Ezzahra El Alaoui-Faris

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