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| DOI: | 10.1139/B09-093 |
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| Web URL(s): | http://www.nrcresearchpress.com/doi/full/10.1139/B09-093
Last checked: 03/02/2012
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| Publication Type:
| Refereed |
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| Author(s): | Saarela, Jeffery M.;
Graham, Sean W. |
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| Author Affiliation: | Faculty of Land and Food Systems, UBC Botanical Garden and Centre for Plant Research and Department of Botany, University of British Columbia, Vancouver, BC, Canada |
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| Title: | Inference of phylogenetic relationships among the subfamilies of grasses (Poaceae: Poales) using meso-scale exemplar-based sampling of the plastid genome |
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| Source: | Botany [Canada]. Vol. 88, No. 1, January 2010, p. 65-84. |
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| Publishing Information: | Vancouver, British Columbia: The National Research Council of Canada. |
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| # of Pages: | 21 |
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| Related Web URL: | http://www.nrcresearchpress.com/doi/abs/10.1139/B09-093
Last checked: 03/16/2012
Notes: Abstract only |
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| Keywords: | TIC Keywords: Bambusoideae; Evolution; Genetic characterization; Genetic variability; Poaceae; Monocotyledons; Phylogenetic analysis; Plastids; Poales; Pooideae; Taxonomic families
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| Abstract/Contents: | "To clarify phylogenetic relationships among grass (Poaceae) subfamilies and to better resolve the placement of Poaceae in Poales, we surveyed 17 plastid genes and associated noncoding regions (~15.5 kb per taxon, about 1/10 of the plastid genome) for exemplar representatives from 10 grass subfamilies and a broad sample of related monocots. We found general concordance in relationships and support levels among gene regions and data partitions across analyses, with some exceptions in Bayesian analyses. Different phylogenetic criteria generally agreed on backbone relationships, and the support values we inferred were generally as good as or better than those in other studies that employed more taxa for fewer genes to estimate the same backbone. Within grasses, we found robust support for the monophyly of subfamily Anomochlooideae and for the Bambusoideae-Ehrhartoideae-Pooideae (BEP) clade, and moderate support for a sister-group relationship between Bambusoideae and Pooideae. Most relationships in the strongly supported Panicoideae-Aristidoideae-Chloridoideae-Micrairoideae-Arundi (PACMAD) clade were not resolved consistently, probably because the current intensive sampling of genes is still insufficient to resolve short internal branches. Our data infer a well-supported clade that includes the grass family and two small families of grass-like plants, Ecdeiocoleaceae and Joinvilleaceae, but we did not satisfactorily resolve the relationships among these three families. A generally accelerated substitution rate in Poaceae plastid genomes is shared with some, but not all, lineages that are closely related to grasses in the larger clade of commelinid monocots, which may complicate inference of the sister group of the grasses in all current studies." |
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| Language: | English |
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| References: | 122 |
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| Note: | Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Saarela, J. M., and S. W. Graham. 2010. Inference of phylogenetic relationships among the subfamilies of grasses (Poaceae: Poales) using meso-scale exemplar-based sampling of the plastid genome. Can. J. Bot. 88(1):p. 65-84. |
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| DOI: 10.1139/B09-093 |
| Web URL(s):
http://www.nrcresearchpress.com/doi/full/10.1139/B09-093
Last checked: 03/02/2012
Access conditions: Item is within a limited-access website
http://www.nrcresearchpress.com/doi/pdf/10.1139/B09-093
Last checked: 03/02/2012
Requires: PDF Reader
Access conditions: Item is within a limited- access website
http://www.nrcresearchpress.com/doi/pdfplus/10.1139/B09-093
Last checked: 03/02/2012
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2201022a |
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