D
David R. Morgan
Researcher at University of West Georgia
Publications - 24
Citations - 2314
David R. Morgan is an academic researcher from University of West Georgia. The author has contributed to research in topics: Astereae & Reticulate evolution. The author has an hindex of 14, co-authored 24 publications receiving 2143 citations. Previous affiliations of David R. Morgan include Washington State University & University of Arkansas.
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Journal ArticleDOI
Phylogeny and classification of Rosaceae
Daniel Potter,Torsten Eriksson,Rodger C. Evans,Sang-Hun Oh,Jenny E. E. Smedmark,David R. Morgan,Malin Kerr,Kenneth R. Robertson,Matthew P. Arsenault,Timothy A. Dickinson,Christopher S. Campbell +10 more
TL;DR: Strong support for monophyly of groups corresponding closely to many previously recognized tribes and subfamilies is found, but no previous classification was entirely supported, and relationships among the strongly supported clades were weakly resolved and/or conflicted between some data sets.
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Chloroplast gene sequence data suggest a single origin of the predisposition for symbiotic nitrogen fixation in angiosperms.
Douglas E. Soltis,Pamela S. Soltis,David R. Morgan,Susan M. Swensen,Beth C. Mullin,Julie M. Dowd,Peter G. Martin +6 more
TL;DR: It is indicated that only one lineage of closely related taxa achieved the underlying genetic architecture necessary for symbiotic nitrogen fixation in root nodules.
Journal ArticleDOI
Systematic and evolutionary implications of rbcL sequence variation in Rosaceae
TL;DR: RbcL-based phylogenies suggest that chromosome numbers are more reliable indicators of some generic alliances than the more commonly used fruit types and that the subfamily Maloideae may have descended from spiraeoid ancestors and the pome is derived from follicular or capsular fruit types.
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Phylogenetic relationships among members of Saxifragaceae sensu lato based on rbcL sequence data
TL;DR: In an attempt to elucidate relationships among the morphologically diverse members of Saxifragaceae sensu lato, phylogenetic analyses of rbcL sequence data were conducted on representative genera of 16 of the 17 subfamilies.
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Phylogeny of subtribe Pyrinae (formerly the Maloideae, Rosaceae): Limited resolution of a complex evolutionary history
Christopher S. Campbell,Rodger C. Evans,David R. Morgan,Timothy A. Dickinson,Matthew P. Arsenault +4 more
TL;DR: Generic relationships in the Pyrinae (equivalent to subfamily Maloideae) were assessed with six chloroplast regions and five nuclear regions, and 12 non-molecular characters onto molecular phylogenies were plotted.