Phylogenetic Relationships of Monocots Based on the Highly Informative Plastid Gene ndhF

By T. Givnish, C. Pires, S. Graham, M. McPherson, L. Prince, T. Patterson, H. Rai, Eric H. Roalson, T. Evans, W. Hahn and 8 more. 2006

94 citations recorded by the source corpus.

We used ndhF sequence variation to reconstruct relationships across 282 taxa representing 78 monocot families and all 12 orders. The resulting tree is highly resolved and places commelinids sister to Asparagales, with both sister to Liliales-Pandanales in the strict consensus; Pandanales are sister to Dioscoreales in the bootstrap majority-rule tree, just above Petrosaviales. Acorales are sister to all other monocots, with Alismatales sister to all but Acorales. Relationships among the four major clades of commelinids remain unresolved. Relationships within orders are consistent with those based on rbcL, alone or in combination with atpB and 18S nrDNA, and generally better supported: ndhF contributes more than twice as many informative characters as rbcL, and nearly as many as rbcL, atpB, and 18S nrDNA combined. Based on functional arguments, we hypothesized that net venation and fleshy fruits should both evolve-and thus undergo concerted convergence-in shaded habitats, and revert to parallel venation and dry, passively dispersed fruits in open, sunny habitats. Our data show that net venation arose at least 26 times and disappeared 9 times, whereas fleshy fruits arose 22 times and disappeared 11 times. Both traits arose together at least 15 times and disappeared together 5 times. They thus show a highly significant pattern of concerted convergence (P < 10 -9 ) and are each even more strongly associated with shaded habitats (P < 10 -10 to 10 -23 ); net venation is also associated, as predicted, with broad-leaved aquatic plants. Exceptions to this pattern illustrate the importance of other selective constraints and phylogenetic inertia.

Subfields: Ecology, Evolution, Behavior and Systematics, Molecular Biology

View Paper: https://www.semanticscholar.org/paper/43f40a0e086e8e584f40e91ea6f61d1e1b9cdb24

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Citations in the corpus

Phylogenetic Analysis of the Plastid Inverted Repeat for 244 Species: Insights into Deeper-Level Angiosperm Relationships from a Long, Slowly Evolving Sequence Region (2011, result): “…within Magnoliidae and Monocotyledoneae are identical between our IR tree and other recent analyses (Cai et al. 2006; Chase et al. 2006; Givnish et al. 2006; Graham et al. 2006; Jansen et al. 2007; Li and Zhou 2007; Moore et al. 2007, 2010; Saarela et al. 2007), while Eudicotyledoneae…”
Phylogenetics, divergence times and diversification from three genomic partitions in monocots (2015, methodology): “The commelinids are strongly supported as monophyletic (BS = 98, PP = 97), as are the five lineages that comprise the group (Arecales: BS = 100, PP = 100; Commelinales: BS = 100, PP = 100; Dasypogonaceae: BS = 100, PP = 100; Poales: BS = 100, PP = 100; Zingiberales: BS = 99, PP = 100).”
SYSTEMATICS OF BROMELIOIDEAE (BROMELIACEAE)¯EVIDENCE FROM MOLECULAR AND ANATOMICAL STUDIES (2007, background): “The data of Crayn et al. (2004) supported many findings based on ndhF (Givnish et al. 2006) except for a different basal resolution, as Brocchinia serrata L. B. Sm., Lindmania Mez, and Brewcaria L. B. Sm., Steyerm.”
Evolutionary History of the Monocot Flower1 (2010, background): “Among Asparagales, several families differ from the trimerous-pentacyclic groundplan, including the most species-rich family Orchidaceae, which is sister to all other Asparagales in most analyses (e.g., Givnish et al., 2006; Graham et al., 2006).”