Asset Details
Do you wish to reserve the book?
Phylogenetics of the Chamaesyce clade (\Euphorbia\, Euphorbiaceae): Reticulate evolution and long-distance dispersal in a prominent C₄ lineage
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Phylogenetics of the Chamaesyce clade (\Euphorbia\, Euphorbiaceae): Reticulate evolution and long-distance dispersal in a prominent C₄ lineage
Do you wish to request the book?
Phylogenetics of the Chamaesyce clade (\Euphorbia\, Euphorbiaceae): Reticulate evolution and long-distance dispersal in a prominent C₄ lineage
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Phylogenetics of the Chamaesyce clade (\Euphorbia\, Euphorbiaceae): Reticulate evolution and long-distance dispersal in a prominent C₄ lineage
2011
Overview
Premise of the study: The Chamaesyce clade of Euphorbia is the largest lineage of C₄ plants among the eudicots, with 350 species including both narrow endemics and cosmopolitan weeds. We sampled this group worldwide to address questions about subclade relationships, the origin of C₄ photosynthesis, the evolution of weeds, and the role of hybridization and longdistance dispersal in the diversification of the group. Methods: Two nuclear (ITS and exon 9 of EMB2765) and three chloroplast markers (matK, rpl16 y and trnL-F) were sequenced for 138 ingroup and six outgroup species. Exon 9 of EMB2765 was cloned in accessions with > 1% superimposed peaks. Key results: The Chamaesyce clade is monophyletic and consists of three major subclades [1(2,3)]: (1) the Acuta clade, containing three North American species with C₃ photosynthesis and C₃ -C₄ intermediates; (2) the Peplis clade, mostly North American and entirely C₄; and (3) the Hypericifolia clade, all C₄, with both New World and Old World groups. Incongruence between chloroplast and ITS phylogenies and divergent cloned copies of EMB2765 exon 9 suggest extensive hybridization, especially in the Hawaiian Islands radiation. Conclusions: The Chamaesyce clade originated in warm, arid areas of North America, where it evolved C₄ photosynthesis. From there, it diversified globally with extensive reticulate evolution and frequent long-distance dispersals. Although many species are weedy, there are numerous local adaptations to specific substrates and regional or island radiations, which have contributed to the great diversity of this group.
Publisher
Botanical Society of America
Subject
