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Citation for Study 1766

About Citation title: "Phylogenetics of Polygonaceae emphasizing on the evolution of Eriogonoideae".
About This study was previously identified under the legacy study ID S1734 (Status: Published).

Citation

Sanchez A., & Kron K. 2007. Phylogenetics of Polygonaceae emphasizing on the evolution of Eriogonoideae. Systematic Botany, null.

Authors

  • Sanchez A.
  • Kron K.

Abstract

Polygonaceae has long been recognized as a monophyletic family but the circumscription of clades within has been in constant flux. Two groups currently recognized are the subfamilies Eriogonoideae and Polygonoideae. An analysis using three chloroplast regions rbcL, matK and ndhF and an increased taxon sampling of Eriogonoideae does not support this delimitation. A new definition of the subfamilies is proposed: Polygonoideae is restricted to what has been recognized as tribe Persicarieae, Rumiceae, Polygoneae with the addition of Muehlenbeckia, and Eriogonoideae includes Antigonon, Brunnichia, Coccoloba, Ruprechtia, Triplaris, and Eriogonoideae s.s. Using the second intron of the nuclear region LEAFY, relationships among 28 taxa of Eriogonoideae s.s. were explored. The intron showed high levels of variability and was only useful at low taxonomic levels. The genus Eriogonum and Chorizanthe are not monophyletic and some implications for our understanding of the relationships within the clade are discussed.

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  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S1766
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