Revised Circumscriptions and Subgeneric Taxonomies of Calandrinia and Montiopsis (Portulacaceae) with Notes on Phylogeny of the Portulacaceous Alliance

Hershkovitz, Mark

doi:10.2307/2399789

Cited by 48 publications

(158 citation statements)

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“…Parsimony analyses of the IR partition recovered a branching pattern (with support less than 50%) similar to the morphological cladistic analysis of Carolin (1987). Parsimony and GARLI analyses of the plastid gene partition found Talinum sister to Portulaca plus Cactaceae, as proposed by the morphological cladistic analyses of Hershkovitz (1993) and the Bayesian molecular analysis of Nyffeler (2007). Parsimony and GARLI analyses of the total evidence and GARLI analyses of IR data sets recovered a wellsupported branching pattern not found in previous analyses: Cactaceae sister to Portulaca plus Talinum.…”

Section: Phylogenetic Analysesmentioning

confidence: 55%

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Phylogeny of the Caryophyllales Sensu Lato: Revisiting Hypotheses on Pollination Biology and Perianth Differentiation in the Core Caryophyllales

Brockington¹,

Alexandre

Ramdial

et al. 2009

International Journal of Plant Sciences

128

120

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. Molecular phylogenetics has revolutionized our understanding of the Caryophyllales, and yet many relationships have remained uncertain, particularly at deeper levels. We have performed parsimony and maximum likelihood analyses on separate and combined data sets comprising nine plastid genes (;12,000 bp), two nuclear genes (;5000 bp), and the plastid inverted repeat (;24,000 bp), giving a combined analyzed length of 42,006 bp for 36 species of Caryophyllales and four outgroups. We have recovered strong support for deep-level relationships across the order. Two major subclades are well supported, the noncore and core Caryophyllales; Rhabdodendron followed by Simmondsia are sisters to the core Caryophyllales, Limeum and Stegnosperma are successive sisters to the ''globular inclusion'' clade, Gisekia is a distinct lineage well separated from Rivina within the ''raphide'' clade, and Rivina and Phytolaccaceae are disparate lineages, with Rivina sister to Nyctaginaceae. The placement of Sarcobatus and relationships within the portulacaceous cohort remain problematic. Within the latter, Halophytum is sister to Basellaceae and Didiereaceae, and the clade comprising Portulaca, Talinum, and Cactaceae is well supported. Classical hypotheses argued that the early Caryophyllales had evolved in open, dry, marginal environments at a time when pollinators were scarce, and, as such, the ancestral caryophyllid flower was wind pollinated with an undifferentiated perianth. We reevaluated these hypotheses in light of our phylogeny and find little support for anemophily as the ancestral condition; however, the early caryophyllid flower is suggested to have possessed an undifferentiated perianth. A subsequent minimum of nine origins of differentiated perianth is inferred. We discuss the evidence for independent origins of differentiated perianth and highlight the research opportunities that this pattern offers to the field of evolutionary developmental genetics.

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Section: Phylogenetic Analysesmentioning

confidence: 55%

“…The monophyly of the cohort was implied by early molecular analyses (Rettig et al 1992;Downie et al 1997); however, relationships within the group are unclear and complicated by the gross paraphyly of Portulacaceae (suggested by Carolin [1987] and Hershkovitz [1993]). The addition of molecular data has resulted in some clarification.…”

Section: Introductionmentioning

confidence: 99%

Phylogeny of the Caryophyllales Sensu Lato: Revisiting Hypotheses on Pollination Biology and Perianth Differentiation in the Core Caryophyllales

Brockington¹,

Alexandre

Ramdial

et al. 2009

International Journal of Plant Sciences

128

120

View full text Add to dashboard Cite

show abstract

“…The "portulacaceous alliance" of the angiosperm order Caryophyllales is a clade comprising about 2000 species in four or five traditionally circumscribed families: Portulacaceae, Hectorellaceae (sometimes included in Portulacaceae), Basellaceae, Didiereaceae, and Cactaceae (Gibson and Nobel, 1985;Hershkovitz, 1991aHershkovitz, , 1993aBittrich, 1993;Manhart and Rettig, 1994;Cronquist and Thorne, 1994;Gibson, 1994;Rodman, 1994;Downie et al, 1997;Hershkovitz and Zimmer, 1997;cf. Cronquist, 1988;Rodman et al, 1984;Downie and Palmer, 1994).…”

Section: Introductionmentioning

confidence: 99%

Ribosomal DNA Evidence and Disjunctions of Western American Portulacaceae

Hershkovitz

Zimmer

2000

Molecular Phylogenetics and Evolution

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“…No entanto, Portulacaceae não era uma família natural (Carolin 1987, Hershkovitz 1993, Hershkovitz & Zimmer 1997, Applequist e Wallace 2001), e por isso os estudos realizados a fim de definir as relações dentro da família não poderiam ser bem sucedidos.…”

Section: Introdução Geralunclassified

“…Como resultado, os autores verificaram que de fato Portulacaceae era polifilética em relação a Basellaceae, Didiereaceae e Cactaceae (figura 2), como já haviam apontado outros autores (Carolin 1987, Hershkovitz 1993 Resumo: As estruturas axilares são muito informativas para os estudos filogenéticos de Portulacineae. Em Cactaceae, por exemplo, existem muitos estudos sobre seus espinhos e aréolas, esta que inclusive constitui sinapomorfia morfológica da família.…”

Section: Introdução Geralunclassified

Ontogênese das estruturas axilares em Anacampserotaceae (Caryophyllales)

Santos¹

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Revised Circumscriptions and Subgeneric Taxonomies of Calandrinia and Montiopsis (Portulacaceae) with Notes on Phylogeny of the Portulacaceous Alliance

Cited by 48 publications

References 0 publications

Phylogeny of the Caryophyllales Sensu Lato: Revisiting Hypotheses on Pollination Biology and Perianth Differentiation in the Core Caryophyllales

Phylogeny of the Caryophyllales Sensu Lato: Revisiting Hypotheses on Pollination Biology and Perianth Differentiation in the Core Caryophyllales

Ribosomal DNA Evidence and Disjunctions of Western American Portulacaceae

Ontogênese das estruturas axilares em Anacampserotaceae (Caryophyllales)

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