Evolutionary Relationships Within the Species-Rich Genus <i>Ruellia</i> (Acanthaceae)

Tripp, Erin A.

doi:10.1600/036364407782250625

Cited by 89 publications

(152 citation statements)

References 53 publications

Supporting

Mentioning

138

Contrasting

Unclassified

Order By: Relevance

“…The relationships recovered in our analysis of the plant dataset as well as the hummingbird dataset reflect relationships recovered in prior phylogenetic study of these two groups (Ruellia: Tripp 2007 andTripp andManos 2008;hummingbirds: McGuire et al 2007). …”

Section: Resultssupporting

confidence: 75%

“…In this study, we sampled 172 species of Ruellia (26 Old World [OW] + 146 New World [NW]), representing all major clades of extant species (McGuire et al 2007;Tripp 2007). Thirty-six outgroups that span the phylogenetic diversity of Acanthaceae (cf.…”

Section: Plant Datasetmentioning

confidence: 99%

“…Only fossils that we accepted as both reliably identified and reliably aged were used in the present study. Our assessment of affinities to extant lineages is based on extensive knowledge of Acanthaceae systematics and the structural traits that are congruent with phylogenetic relationships (e.g., McDade et al 2000a,b;Scotland and Vollesen 2000;Schwarzbach and McDade 2002;McDade et al 2005;Tripp 2007;Daniel et al 2008;McDade et al 2008;Tripp et al 2009;McDade et al 2012;Tripp et al 2013). Fossils constrained the most recent common ancestor (MRCA) of the taxon to which the fossil could be unambiguously attributed.…”

Section: Plant Datasetmentioning

confidence: 99%

See 2 more Smart Citations

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

Tripp¹,

McDade²

2013

aliso

View full text Add to dashboard Cite

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.

show abstract

Section: Resultssupporting

confidence: 75%

Section: Plant Datasetmentioning

confidence: 99%

Section: Plant Datasetmentioning

confidence: 99%

See 1 more Smart Citation

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

Tripp¹,

McDade²

2013

aliso

View full text Add to dashboard Cite

show abstract

“…Benoist (1967) recorded 31 species of Ruellia in Madagascar, all but one of which are endemic to the island. Recent molecular analyses (Tripp 2007;Tripp et al 2013) have demonstrated that Eusiphon and two other Malagasy genera, Benoicanthus Heine & A. Raynal and Pseudoruellia Benoist, are nested within Ruellia. With this expansion of the generic circumscription, together with the addition of the new species R. domatiata described here, 35 accepted species of Ruellia are currently known from Madagascar (Madagascar Catalogue 2015), making it the third largest genus of Acanthaceae on the island.…”

Section: Introductionmentioning

confidence: 99%

Ruellia domatiata (Acanthaceae), a striking new species from Madagascar

2017

Self Cite

View full text Add to dashboard Cite

Summary. The new species Ruellia domatiata I. Darbysh. & E. Tripp from northern Madagascar is described and illustrated and its affinities within the genus are discussed. This striking new species is currently assessed as Critically Endangered using the categories and criteria of the IUCN Red List. The presence of tuft-domatia on the undersurface of the leaves, a rare occurrence in the Acanthaceae family, is noted.

show abstract

“…; whereas the "microgeneric" placement of the remaining 6, including R. shaferiana, is unsettled. If, on the contrary, one accepts the recent synthetic, moleculebased approach by Tripp (2007) and Tripp & al. (2008), one must add Ruellia blechum L. (formerly Blechum pyramidatum (Lam.)…”

Section: Introductionmentioning

confidence: 99%