Phylogenetic Relationships and Chromosome Number Evolution in &lt;I&gt;Passiflora&lt;/I&gt;

Hansen, Anne; Gilbert, Lawrence E.; Simpson, Beryl B.; Downie, Stephen R.; Cervi, Armando Carlos; Jansen, Robert K.

doi:10.1600/036364406775971769

Cited by 131 publications

(105 citation statements)

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“…As well sampled and resolved phylogenies become available for clades that include Neotropical plants, the phylogenetic patterns that underlie species richness can be understood. A pattern emerging from our work and that of several colleagues is one of marked asymmetries in species diversity between richer New World compared to Old World sister clades (McDade et al 2000a;McDade et al 2005;Hansen et al 2006;Kiel et al 2006;Tripp 2007;Borg et al 2008;Daniel et al 2008;McDade et al 2008;Tripp and Manos 2008;David and Anderson 2010;McDade et al 2012;Yang et al 2012;Drew and Sytsma 2013;Tripp et al 2013) suggesting that high Neotropical diversity is an evolutionary phenomenon as well as an ecological one.…”

Section: Divergence Timessupporting

confidence: 57%

Time-Calibrated Phylogenies of Hummingbirds and Hummingbird-Pollinated Plants Reject a Hypothesis of Diffuse Co-Evolution

Tripp¹,

McDade²

2013

aliso

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Neotropical ecosystems house levels of species diversity that are unmatched by any other region on Earth. One hypothesis to explain this celebrated diversity invokes a model of biotic interactions in which interspecific interactions drive diversification of two (or more) lineages. When the impact of the interaction on diversification is reciprocal, diversification of the lineages should be contemporaneous. Although past studies have provided evidence needed to test alternative models of diversification such as those involving abiotic factors (e.g., Andean uplift, shifting climatological regimes), tests of the biotic model have been stymied by lack of evolutionary time scale for symbiotic partners. In this study, we infer timescales for diversification of hummingbirds and a species-rich plant lineage that is ,50% hummingbird pollinated, Ruellia (Acanthaceae). Results demonstrate that hummingbirds originated about 20 million years before New World Ruellia and that all but one major hummingbird clade was extant before the plant group originated. Thus, the classic model of ''diffuse co-evolution'' between hummingbirds and this group of plants is rejected by our data. However, together with the observation that the Neotropical clade of Ruellia (,350 species) is far more species rich than its Old World sister group (,75 species), our results are consistent with the hypothesis that plant diversification in the Neotropics has been facilitated in part by a pre-existing diversity of hummingbirds. This hypothesis may find support in other lineages of Neotropical plants that similarly exhibit asymmetrical partitioning of species diversity in the Paleo-vs. Neotropics.

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Section: Divergence Timessupporting

confidence: 57%

Time-Calibrated Phylogenies of Hummingbirds and Hummingbird-Pollinated Plants Reject a Hypothesis of Diffuse Co-Evolution

Tripp¹,

McDade²

2013

aliso

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“…The molecular phylogenetic analyses presented by Muschner et al (2003), Yockteng & Nadot (2004), and Hansen et al (2006) did not support the classifications into supersections, sections, and series. It was seen in the present study that Passiflora subg.…”

Section: Discussionmentioning

confidence: 77%

“…Recent phylogenetic studies of Passiflora (Muschner et al 2003, Yockteng & Nadot 2004, Souza-Chies et al 2005, Hansen et al 2006, 2007 have not supported the supersectional, sectional, and series classifications within P. subg. Decaloba proposed by Reichenbach (1828).…”

Section: Introductionmentioning

confidence: 94%

“…Nevertheless, our results do demonstrate relative congruency with most of the taxonomic affinities inferred for the taxa studied here and allow inferences to be made concerning some of the phylogenetic lineages of the group. Hansen et al (2006) noted that none of the published phylogenetic analyses have completely resolved the classification of Passiflora, as the series and sections have not been supported. It is probable that phylogenetic analyses, combined with additional morphological and molecular data, will supply more consistent results and present nonor less-conflicting interpretations of the evolution of the Passiflora taxa.…”

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confidence: 99%

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Taxonomy and evolutionary relationships of Passiflora subg. Decaloba supersect. Decaloba sect. Xerogona (Passifloraceae): contributions of palynological, morphological and molecular studies

2014

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Passiflora subg. Decaloba supersect. Decaloba sect. Xerogona (Passifloraceae) is a tropical and subtropical group comprising 14 species that occur in tropical biomes throughout Latin America, including the Atlantic Forest. The section Xerogona comprises herbaceous vines characterized by a lack of petiole glands on their leaves, of bracts and of ocelli on their leaf blades, as well as by their capsular fruits. We analyzed the phylogeny on the basis of morphological characters (including pollen characters) and molecular data. The inferred phylogeny was used in order to characterize, circumscribe and delimit the section and the species. We examined the phylogenetic relationships among the species, evaluating the circumscription of the section on the basis of the trnL-trnF intergenic spacer region of chloroplast DNA and the internal transcribed spacer region of nuclear ribosomal DNA. We constructed phylogenetic trees on the basis of the morphological and molecular data. We found that P. subg. Decaloba supersect. Decaloba sect. Xerogona appears to be monophyletic only in the molecular analyses. The phylogenetic analyses performed here also indicated that P. subg. Decaloba is monophyletic.

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“…These families are nested within a large clade of Malpighiales with mostly parietal placentation whose other sampled members (including Populus) contain the intron. Passifloraceae are known to have other chloroplast gene and intron losses (Downie et al 1994a, b;Hansen et al 2006;Jansen et al 2007). The loss of the intron in Lophopyxidaceae appears isolated as the family is monotypic, and because its strongly supported sister group (Davis et al 2005), Putranjivaceae, possesses the intron.…”

Section: Phylogenetic Distribution Of Atpf Intron Lossesmentioning

confidence: 99%

The complete nucleotide sequence of the cassava (Manihot esculenta) chloroplast genome and the evolution of atpF in Malpighiales: RNA editing and multiple losses of a group II intron

et al. 2008

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The complete sequence of the chloroplast genome of cassava (Manihot esculenta, Euphorbiaceae) has been determined. The genome is 161,453 bp in length and includes a pair of inverted repeats (IR) of 26,954 bp. The genome includes 128 genes; 96 are single copy and 16 are duplicated in the IR. There are four rRNA genes and 30 distinct tRNAs, seven of which are duplicated in the IR. The infA gene is absent; expansion of IRb has duplicated 62 amino acids at the 3′ end of rps19 and a number of coding regions have large insertions or deletions, including insertions within the 23S rRNA gene. There are 17 intron-containing genes in cassava, 15 of which have a single intron while two (clpP, ycf3) have two introns. The usually conserved atpF group II intron is absent and this is the first report of its loss from land plant chloroplast genomes. The phylogenetic distribution of the atpF intron loss was determined by a PCR survey of 251 taxa representing 34 families of Malpighiales and 16 taxa from closely related rosids. The atpF intron is not only missing in cassava but also from closely related Euphorbiaceae and other Malpighiales, suggesting that there have been at least seven independent losses. In cassava and all other sequenced Malphigiales, atpF gene sequences showed a strong association between C-to-T substitutions at nucleotide position 92 and the loss of the intron, suggesting that recombination between an edited mRNA and the atpF gene may be a possible mechanism for the intron loss.

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Phylogenetic Relationships and Chromosome Number Evolution in <I>Passiflora</I>

Cited by 131 publications

References 50 publications

Time-Calibrated Phylogenies of Hummingbirds and Hummingbird-Pollinated Plants Reject a Hypothesis of Diffuse Co-Evolution

Time-Calibrated Phylogenies of Hummingbirds and Hummingbird-Pollinated Plants Reject a Hypothesis of Diffuse Co-Evolution

Taxonomy and evolutionary relationships of Passiflora subg. Decaloba supersect. Decaloba sect. Xerogona (Passifloraceae): contributions of palynological, morphological and molecular studies

The complete nucleotide sequence of the cassava (Manihot esculenta) chloroplast genome and the evolution of atpF in Malpighiales: RNA editing and multiple losses of a group II intron

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