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Citation for Study 885

About Citation title: "Monophyletic subgroups of the tribe Millettieae (Leguminosae) as revealed by phytochrome nucleotide sequence data.".
About This study was previously identified under the legacy study ID S753 (Status: Published).


Lavin M., Eshbaugh E., Hu J., Mathews S., & Sharrock R. 1998. Monophyletic subgroups of the tribe Millettieae (Leguminosae) as revealed by phytochrome nucleotide sequence data. American Journal of Botany, 85: 412-433.


  • Lavin M.
  • Eshbaugh E.
  • Hu J.
  • Mathews S.
  • Sharrock R.


Phylogenetic analysis of phytochrome (PHY) genes reveals the identity and relationships of four PHY loci among papilionoid Leguminosae. A phylogenetic analysis of loci combined according to species suggests that most of the tribe Millettieae belongs to one of two monophyletic clades: the Derris-Lonchocarpus or the Tephrosia clade. Together these two form a monophyletic group that is sister to a lineage represented by Millettia grandis of Millettia sect. Compresso-gemmatae. Collectively, this large monophyletic group is referred to as the Millettieae-core groups, which based on our sampling, includes species of Millettieae that do not accumulate the nonprotein amino acid canavanine and that mostly have pseudoracemose or pseudopaniculate inflorescences. This new phylogenetic framework assists in targeting additional taxa for future sampling. For example, the American Derris (Deguelia), which accumulate canavanine, might not be members of the Millettieae core group. Afgekia is also predicted not to be a member because it accumulates canavanine and has an inflorescence of terminal racemes. PHY gene analysis specifically reveals that certain genera traditionally classified in Millettieae are actually distantly related to the Millettieae core groups, such as Austrosteenisia, Callerya, Craibia, Cyclolobium, Fordia, Platycyamus, Poecilanthe, and Wisteria.


Leguminosae; phylogeny; phytochrome genes

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