Phylogenetic Relationships within Phacelia subgenus Phacelia (Hydrophyllaceae) Inferred From Nuclear rDNA ITS Sequence Data

@inproceedings{Gilbert2005PhylogeneticRW,
  title={Phylogenetic Relationships within Phacelia subgenus Phacelia (Hydrophyllaceae) Inferred From Nuclear rDNA ITS Sequence Data},
  author={Cynthia Gilbert and John Dempcy and Constance Ganong and Robert W. Patterson and Greg Spicer},
  year={2005}
}
Abstract We examined infrageneric relationships within Phacelia subgenus Phacelia based on phylogenetic hypotheses derived from internal transcribed spacers (ITS) and the 5.8S gene of nuclear ribosomal DNA. Maximum parsimony (MP) and maximum likelihood (ML) phylogenies support the monophyly of sects. Euglypta and Miltitzia, previously hypothesized based on seed characters and ecological distribution. Tree branching patterns within the Euglypta/Miltitzia clade indicate three principle lineages… 
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TLDR
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TLDR
DNA sequences from the ribosomal DNA internal transcribed region showed that Phacelia fimbriata and P. purshii comprise a monophyletic clade but that P. fimbRIata is more differentiated from related species.

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TLDR
Two varieties of fiddleneck (Phacelia tanacetifolia Benth.) plant were determined for visualizing somatic chromosomes and the karyotype formulas of two varieties offiddleneck were 16 median and 6 submedian (16 m + 6 sm).

Elevation of Phacelia cicutaria var. hubbyi (Boraginaceae) to Species Status

TLDR
It is distinguished morphologically from P. cicutaria and P. hispida by its more robust habit, more densely congested inflorescences, lack of mottled markings on the corolla, thicker shaggy hairs on the stems and leaves, and calyx lobes that closely invest the fruit.

Are polyploids really evolutionary dead-ends (again)? A critical reappraisal of Mayrose et al. ().

TLDR
Polyploidy is now viewed not as a mere side branch of evolution, but as a major mechanism of evolution and diversification.

Recently Formed Polyploid Plants Diversify at Lower Rates

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