The Phylogeny of the Asteridae sensu lato Based on Chloroplast ndhF Gene Sequences

Olmstead, Richard G.; Kim, Ki Joong; Jansen, Robert K.; Wagstaff, Steven J.

doi:10.1006/mpev.1999.0769

Cited by 150 publications

(127 citation statements)

References 96 publications

(117 reference statements)

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“…The Gesneriaceae is one of the oldest families of the Lamiales (Oxelman et al, 1999;Olmstead et al, 2000), and is estimated to have diverged around 71-74 MYBP (Wikström et al, 2001). Crown group ages are estimated to be nearly as old (71 MYBP; Bremer et al, 2004) with Cyrtandra being one of the more recently derived genera in the family (Mayer et al, 2003).…”

Section: Divergence Datesmentioning

confidence: 99%

Patterns of diversification and ancestral range reconstruction in the southeast Asian–Pacific angiosperm lineage Cyrtandra (Gesneriaceae)

Clark

Wagner

Roalson

2009

Molecular Phylogenetics and Evolution

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Section: Divergence Datesmentioning

confidence: 99%

Patterns of diversification and ancestral range reconstruction in the southeast Asian–Pacific angiosperm lineage Cyrtandra (Gesneriaceae)

Clark

Wagner

Roalson

2009

Molecular Phylogenetics and Evolution

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“…To survey the extent of chloroplast infA loss more widely among asterids, the locus was sequenced from representatives of 10 of the 11 major lineages of asterids identified by molecular analyses (Olmstead et al, 2000). Three more infA pseudogenes were found, in Pentas (Rubiaceae), Campanula (Campanulaceae), and Conopholis (Orobanchaceae) ( Figure 1).…”

Section: Revealed By Dna Sequencingmentioning

confidence: 99%

“…Black bars indicate lineages with chloroplast infA pseudogenes or complete loss. The branching order and taxonomic classifications are based on Soltis et al (1999) and Olmstead et al (2000). Boxed names indicate species from which a nuclear infA gene was identified.…”

Section: Thirteen Additional Losses Of Chloroplast Infa Inferred Frommentioning

confidence: 99%

“…infA is also a pseudogene in Convolvulus (Convolvulaceae), representing the sister family to the Solanaceae. The gene may have become nonfunctional in an ancestor of these lineages, although all of the inactivating mutations in the Convolvulus gene are at different sites from those in the Solanaceae and so seem to have been acquired independently.To survey the extent of chloroplast infA loss more widely among asterids, the locus was sequenced from representatives of 10 of the 11 major lineages of asterids identified by molecular analyses (Olmstead et al, 2000). Three more infA pseudogenes were found, in Pentas (Rubiaceae), Campanula (Campanulaceae), and Conopholis (Orobanchaceae) ( Figure 1).…”

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confidence: 99%

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Many Parallel Losses of infA from Chloroplast DNA during Angiosperm Evolution with Multiple Independent Transfers to the Nucleus

et al. 2001

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We used DNA sequencing and gel blot surveys to assess the integrity of the chloroplast gene infA , which codes for translation initiation factor 1, in Ͼ 300 diverse angiosperms. Whereas most angiosperms appear to contain an intact chloroplast infA gene, the gene has repeatedly become defunct in ‫ف‬ 24 separate lineages of angiosperms, including almost all rosid species. In four species in which chloroplast infA is defunct, transferred and expressed copies of the gene were found in the nucleus, complete with putative chloroplast transit peptide sequences. The transit peptide sequences of the nuclear infA genes from soybean and Arabidopsis were shown to be functional by their ability to target green fluorescent protein to chloroplasts in vivo. Phylogenetic analysis of infA sequences and assessment of transit peptide homology indicate that the four nuclear infA genes are probably derived from four independent gene transfers from chloroplast to nuclear DNA during angiosperm evolution. Considering this and the many separate losses of infA from chloroplast DNA, the gene has probably been transferred many more times, making infA by far the most mobile chloroplast gene known in plants. INTRODUCTIONMany genes have been lost from the chloroplast genome during plant and algal evolution. Most of these losses occurred in the murky interval between the original endosymbiosis of a cyanobacterium (with perhaps 2000 proteincoding genes) and the last common ancestor of all existing chloroplast genomes (with ‫ف‬ 210 protein-coding genes; . Many other genes were lost during the early evolution of photosynthetic eukaryotes, often in parallel in different algal lineages, and some of these losses were the result of gene transfers to the nuclear genome . During the evolution of land plants, relatively few changes occurred to the set of genes found in chloroplast DNA (cpDNA) Palmer and Delwiche, 1998). Nonetheless, the most recent changes are likely to provide the most information about the evolutionary mechanisms involved.Among the six completely sequenced chloroplast genomes from angiosperms (excluding the nonphotosynthetic plant Epifagus virginiana ; Wolfe et al., 1992a), 74 proteincoding genes are held in common and an additional five are present in only some species. These five genes are accD , ycf1 , and ycf2 (pseudogenes in rice and maize; Hiratsuka et al., 1989;Maier et al., 1995), rpl23 (pseudogene in spinach; Thomas et al., 1988), and infA (pseudogene in tobacco, Arabidopsis, and Oenothera elata ; Shinozaki et al., 1986;Wolfe et al., 1992b;Sato et al., 1999; Hupfer et al., 2000). Other chloroplast gene losses in angiosperms that have been confirmed by sequencing include rpl22 , rps16 , and ycf4 (open reading frame 184), all of which have been lost in 1 To whom correspondence should be addressed. E-mail (in Dublin) khwolfe@tcd.ie; fax 353-1-6798558. 646The Plant Cell some or all legumes (Gantt et al., 1991;Nagano et al., 1991; Doyle et al., 1995; K.H. Wolfe, unpublished data), and ycf2 and ndhF , both of which have been lost ...

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“…Zygomorphic flowers predominate within the Lamiales, although the basal lineages produce actinomorphic flowers (Endress 1997;Olmstead et al 2000;Bremer et al 2002). Molecular systematic studies of species within the Lamiales place Antirrhinum within the Veronicaceae, a very highly supported clade that includes the Antirrhineae, Digitaleae and Plantaginaceae (Olmstead et al 2001).…”

Section: Introductionmentioning

confidence: 99%

Evolution of flower shape in Plantago lanceolata

et al. 2009

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Plantago lanceolata produces small actinomorphic (radially symmetric), wind-pollinated flowers that have evolved from a zygomorphic, biotically pollinated ancestral state. To understand the developmental mechanisms that might underlie this change in flower shape, and associated change in pollination syndrome, we analyzed the role of CYC-like genes in P. lanceolata. Related zygomorphic species have two CYC-like genes that are expressed asymmetrically in the dorsal region of young floral meristems and in developing flowers, where they affect the rate of development of dorsal petals and stamens. Plantago has a single CYC-like gene (PlCYC) that is not expressed in early floral meristems and there is no apparent asymmetry in the pattern of PlCYC expression during later flower development. Thus, the evolution of actinomorphy in Plantago correlates with loss of dorsal-specific CYC-like gene function. PlCYC is expressed in the inflorescence stem, in pedicels, and relatively late in stamen development, suggesting a novel role for PlCYC in compacting the inflorescence and retarding stamen elongation in this wind pollinated species.

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The Phylogeny of the Asteridae sensu lato Based on Chloroplast ndhF Gene Sequences

Cited by 150 publications

References 96 publications

Patterns of diversification and ancestral range reconstruction in the southeast Asian–Pacific angiosperm lineage Cyrtandra (Gesneriaceae)

Patterns of diversification and ancestral range reconstruction in the southeast Asian–Pacific angiosperm lineage Cyrtandra (Gesneriaceae)

Many Parallel Losses of infA from Chloroplast DNA during Angiosperm Evolution with Multiple Independent Transfers to the Nucleus

Evolution of flower shape in Plantago lanceolata

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