A5060866296- Plant Diversity and Evolution
- Plant and Fungal Species Descriptions
- Plant and animal studies
- Plant Pathogens and Fungal Diseases
- Botany, Ecology, and Taxonomy Studies
- Fern and Epiphyte Biology
- Plant Parasitism and Resistance
- Mediterranean and Iberian flora and fauna
- Genomics and Phylogenetic Studies
- Plant Taxonomy and Phylogenetics
- Botany and Plant Ecology Studies
- Genetic diversity and population structure
- Flowering Plant Growth and Cultivation
- Phytochemistry and Biological Activities
- Botanical Studies and Applications
- Botanical Research and Applications
- Scarabaeidae Beetle Taxonomy and Biogeography
- Marine and coastal plant biology
- Plant Pathogenic Bacteria Studies
- Software System Performance and Reliability
- Botanical Research and Chemistry
- Pacific and Southeast Asian Studies
- Seed and Plant Biochemistry
- Essential Oils and Antimicrobial Activity
- Botany and Geology in Latin America and Caribbean
Wake Forest University
2005-2020
Cornell University
2015
University of Florida
2010
Kunming Institute of Botany
2009
California Academy of Sciences
2009
Instituto de Ecología
2005
Universidad Autónoma Metropolitana
2005
Secretaría de Investigación, Innovación y Educación Superior
2005
Cambridge University Press
2005
National Commission for the Knowledge and Use of Biodiversity
2005
We present the results of two exploratory parsimony analyses DNA sequences from 475 and 499 species seed plants, respectively, representing all major taxonomic groups.The data are exclusively chloroplast gene rbcL, which codes for large subunit ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO or RuBPCase).We used different state-transformation assumptions resulting in sets cladograms: (i) equal-weighting 499-taxon analysis; (ii) a procedure that differentially weights transversions...
Recent cladistic analyses are revealing the phylogeny of flowering plants in increasing detail, and there is support for monophyly many major groups above family level.With elements branching sequence established, a revised suprafamilial classification becomes both feasible desirable.Here we present 462 plant families 40 putatively monophyletic orders small number monophyletic, informal higher groups.The latter monocots, commelinoids, eudicots, core rosids including eurosids I II, asterids...
Abstract The subfamily Polygonoideae has a world‐wide distribution and is an important component of many countries’ floras. In this study we present the most comprehensive sampling available to date, including data from three chloroplast genes ( matK, ndhF, rbcL ) for 82 species in Polygonaceae (54 Polygonoideae). Based on our results, propose new taxonomic classification that includes five well‐supported tribes: Calligoneae, Fagopyreae, Persicarieae, Polygoneae, Rumiceae. Overall, results...
The blueberry tribe (Vaccinieae) is a large and morphologically diverse group that widespread in the temperate tropical zones of most continents. greatest species diversity tropics, where Vaccinieae are major component montane cloud forests. Generic limits poorly understood, many characters traditionally used fail to adequately distinguish among taxa. This study analyzed sequence data from chloroplast matK gene nrITS region for 93 Vaccinieae, representing 28 genera, 16 sections (of ∼33...
The Ericaceae, Epacridaceae, and Empetraceae are usually recognized as closely related families of woody plants that share a preference for acidic soils, anthers invert in development, the presence endosperm haustoria, among other characteristics. distinctive because their often unisexual wind-pollinated flowers. Epacridaceae distinguished from Ericaceae by open slits rather than pores primarily Australian distribution. Phylogenetic relationships these investigated using nucleotide sequences...
Few studies have addressed the evolutionary relationships within Polygonaceae from a global perspective. The convoluted taxonomic history of is major barrier to understanding evolution in this group, and only portions it been included systematic treatments. Phylogenetic limited both taxon sampling amount data. Our objective identify clades provide estimate phylogenetic morphologically diverse geographically widespread group. We include total 75 species representing approximately 40 55 named...
Abstract Polygonaceae has long been recognized as a monophyletic family but the circumscription of groups within it in constant flux. Two currently are subfamilies Eriogonoideae and Polygonoideae. An analysis using three chloroplast regions (rbcL, matK, ndhF) increased taxon sampling does not support this delimitation. The second intron portions flanking exons nuclear gene LEAFY, were used to explore phylogenetic utility Polygonaceae. showed high levels variability was useful at low...
Abstract Many Polygonaceae are primary successors or “weedy” and Aconogonon polystachyum species hybrids of both Emex Reynoutria pernicious invasives outside their native ranges. have a particularly muddled taxonomic history despite ongoing systematic studies, there still large ‐scale questions about evolutionary relationships within the group. In this study, we address Aconogonon, Emex, Fallopia, Koenigia, Oxygonum, Polygonum , Rumex . We clarify Polygonoideae by building on an existing...
The buckwheat family Polygonaceae is a diverse group of plants and good model for investigating biogeography, breeding systems, coevolution with symbionts such as ants fungi, functional trait evolution, hybridization, invasiveness, morphological plasticity, pollen morphology wood anatomy. main goal this study was to obtain age estimates by calibrating Bayesian phylogenetic analysis, using relaxed molecular clock fossil data. Based on the estimates, we also develop hypotheses about historical...
Molecular support for monophyly of Ebenales and its phylogenetic relationships to other dicot families was investigated using parsimony analysis nucleotide sequences the large subunit ribulose-1,5-biphosphate carboxylase (rbcL). All were examined except remote monogeneric family Lissocarpaceae, due lack material. In addition we 93 rbcL 34 families. analyses strongly asterid III grouping (identified in an 500 by Chase et al.). The tree identified be distributed among several major subclades...
Abstract Phylogenetic relationships within Polygonaceae, with an emphasis on Polygonum and segregate genera (e.g., Emex, Persicaria, Polygonella), are investigated using sequence data from the chloroplast gene rbcL. The results show currently recognized subfamilies likely not monophyletic. as is paraphyletic. Three strongly supported clades of s.l. were found. Contained these three representatives Atraphaxis, Bistorta, Koenigia Persicaria. Other found Coccoloba, Eriogonum, Fagopyrum, Rumex...
The Rhododendroideae are usually recognized as a subfamily within Ericaceae. This group has been considered primitive (i.e., occupying the ancestral or basal position relative to all other Ericaceae) due occurrence of separate petals in several taxa, deciduous corollas, and septicidally dehiscent capsules. Previous molecular studies using rbcL nr18s sequences have indicated that may be paraphyletic cladistically derived geneology Ericaceae is not basal). matK 42 taxa from traditional...
The cladistic relationships of the tribe Rhodoreae (Ericaceae; Rhododendroideae) are investigated. is likely monophyletic, and may be diagnosed by perulae found with inflorescence. genus Rhododendron, as currently recognized, shown to paraphyletic. However, if Ledum included (as a subsection sect. within subg. Rhododendron), Therorhodion excluded, then probably monophyletic. related most closely Rhododendron subsect. Edgeworthia. consistent recognition eight subgenera: Anthodendron,...
The genus Erica (Ericeae, Ericoideae, Ericaceae) occurs in Europe, the Middle East, and Africa. Southern Africa has largest number of species, especially at southern tip continent. This narrow north‐south distribution is unique Ericaceae fueled speculation about origin species. Phylogenetic relationships among selected species were investigated order to determine whether this lies Europe or Three regions DNA, one from nuclear genome (nrITS) two chloroplast (rbcL‐atpB spacer matK), as sources...
• Premise of the study : Taxonomic groups have often been recognized on basis geographic distinctions rather than accurately representing evolutionary relationships. This has particularly true for temperate and tropical members from same family. Polygonaceae exemplifies this problem, wherein woody genera were segregated family placed in subfamily Polygonoideae as two tribes: Triplarideae Coccolobeae. Modern phylogenetic studies, especially when inferred many lines evidence, can elucidate...
Abstract Genera included in Polygoneae such as Atraphaxis, Duma, Fallopia, Muehlenbeckia, Polygonella, Polygonum, Oxygonum , and Reynoutria are investigated using a molecular framework. Previous morphological studies had indicated that Polygonum is composed of sections Duravia, Pseudomollia with the genus Polygonella subsection sect. Duravia . One nuclear (nrITS) three chloroplast ( matK, ndhF, trnL–trnF ) regions were analyzed Maximum Parsimony Likelihood methods to address evolutionary...
Abstract Aim Are different fruit colours related to large‐scale patterns of dispersal, distribution and diversification? Here, we investigate this question for the first time, using phylogenetic approaches in tribe Gaultherieae (Ericaceae). We test relationships between colour (a) biogeographic (b) elevational latitudinal species distributions (c) rates diversification. Location Global. Time period Recent 30 million years ago. Major taxa studied The plant family Ericaceae (blueberries...
Abstract Phylogenetic relationships among Vaccinium sections Macropelma, Myrtillus, and Hemimyrtillus have been the subject of much debate. These taxa proposed as close relatives they share, along with sect. Oxycoccoides, character buds covered by two partially fused prophylls. However, monophyly these has not assessed hypotheses about evolutionary tested using a cladistic framework. While most investigators agree that Hawaiian from Macropelma represent monophyletic group, phylogenetic...
The monophyly of Muehlenbeckia and evolutionary relationships with other genera in Polygonoideae have been unclear. traditional placement Coccolobeae (Eriogonoideae) along Antigonon, Brunnichia, Coccoloba has not supported previous studies, it is more closely related to Fallopia Polygonoideae. Molecular data from 22 species representatives Atraphaxis, (including Reynoutria), Polygonella, Polygonum s.s. were generated five chloroplast regions (matK, ndhF, 3′rps16-5′trnK, trnL-trnF...
Rhododendron sect. Pentanthera G. Don (Ericaceae) comprises a group of closely related, highly ornamental plants which are commonly called ‘azaleas'. Thirteen the fifteen species recognized in this section indigenous to North America. One (R. molle) is native Japan and China, one luteum) Caucasus region. Phylogenetic analysis within indicates that R. molle sister rest section. It sole member subsect. Sinensia. The remaining form monophyletic as Pentanthera. Within subsection presence blotch...
Previous phylogenetic studies based on DNA sequence data from the genic regions ndhF, matK, atpB-rbeL (cpDNA) and ITS 2 (nrDNA) strongly support monophyly of wintergreen group (Ericaceae: Gaultherieae: Diplycosia, Gaultheria, Tepuia) have assessed relationships its major clades. Other that include additional been limited to two clades corresponding various sections or series within Gaultheria. Here we expand both number species (from 42 104) (chloroplast mat K, rpl16, trnL-trnF, trnS-trnG,...