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18 results for “Commiphora”
Development of novel, Exon-Primed Intron-Crossing (EPIC) markers from EST databases and evaluation of their phylogenetic utility in Commiphora (Burseraceae)
Premise of the study: Novel nuclear exon-primed intron-crossing (EPIC) markers were developed to increase phylogenetic resolution among recently diverged lineages in the frankincense and myrrh family, Burseraceae, using Citrus, Arabidopsis, and Oryza genome resources. Methods and Results: Primer pairs for 48 nuclear introns were developed using the genome resource IntrEST and were screened using species of Commiphora and other Burseraceae taxa. Four putative intron regions (RPT6A, BXL2, mtATP Synthase D, and Rab6) sequenced successfully for multiple taxa and recovered phylogenies consistent with those of existing studies. In some cases, these regions yielded informative sequence variation on par with that of the nrDNA internal transcribed spacer. Conclusions: The combination of freely available genome resources and our design criteria have uncovered four, single-copy nuclear intron regions that are useful for phylogenetic reconstruction of Burseraceae taxa. Because our EPIC primers also amplify Arabidopsis, we recommend their trial in other rosid and eudicot lineages.
Data from: Phylogenetic reconstruction of the myrrh genus, Commiphora (Burseraceae), reveals multiple radiations in Madagascar and clarifies infrageneric relationships
Commiphora (Burseraceae) is the most species-rich genus in the frankincense and myrrh family, whose widespread and often remote distribution in seasonally dry tropical forests globally has impeded efforts to resolve its taxonomy and investigate its systematic biology. Here we focus on establishing the origin and evolution of Commiphora species native to Madagascar, all of which are endemic. Recent work has uncovered 16 new Malagasy species, bringing the total number of island endemic species to 44 and comprising nearly 25% of the genus. Previous phylogenetic studies of Commiphora have indicated that Malagasy lineages immigrated to and radiated within the island twice. We test this biogeographic hypothesis more thoroughly using a nearly comprehensive sampling of species from Madagascar, an expanded sampling of Commiphora species native to other regions, and a greater depth of DNA sequence data from the nuclear (nrETS, nrITS) and chloroplast (psbA-trnH, ndhF-rpl32, and trnD—trnT) genomes. Results from this expanded phylogenetic analysis include strong support for seven infrageneric clades within a monophyletic Commiphora, which we refer to as the 'Lasiodisca,' 'Granulifera,' 'Saxicola,' 'Gariepensis,' 'Spinescens,' 'Arafy,' and 'Rhynchocarpa' clades. Malagasy species comprise four distantly related lineages, including one species sister to all other Commiphora species (C. lasiodisca), the species-rich 'Arafy,' and 'Rhynchocarpa' clades, and one species embedded within the predominantly East African 'Spinescens' clade (C. simplicifolia). We describe the morphological and geographic affinities of each infrageneric and Malagasy lineage and identify priorities for future systematic study of the genus.
FIGURE 3 in Commiphora omundomba (Burseraceae), a new species from Angola and Namibia
FIGURE 3. Commiphora omundomba, flower (A, B), fruit (C–E) and stone (F–H) morphology. A & B. Male flower with three petals and three stamens, viewed from the side (A) and from above (B). C–E. Fruit in posterior (C), anterior (D), and side (E) view. F–H. Stone with pseudo-aril, view of fertile locule (F), sterile locule (G), and as seen from the side (H). Scale bar = 2 mm. Photographs by W. Swanepoel.
FIGURE 2 in Commiphora omundomba (Burseraceae), a new species from Angola and Namibia
FIGURE 2. Commiphora omundomba, variation in leaf morphology (A, B) and trunk with thicker branches showing smooth, non-peeling bark (C). A. Leaves with lamina entire. B. Leaves with lamina crenate to crenate-serrate. C. Plant with short trunk (partly hollowed out), about 200 mm in diameter; note some branches with prominent almost parallel longitudinal ridges. Scale bar = 5 mm. Photographs by W. Swanepoel.
FIGURE 1 in Commiphora omundomba (Burseraceae), a new species from Angola and Namibia
FIGURE 1. Commiphora omundomba, habitat and habit. A. Ascending, leafless shrub-like trees in foreground, ca. 70 km from the Atlantic Coast. B. Prostrate shrub on top of sandstone cliffs along the coast. Photographs by W. Swanepoel.
FIGURE 5 in Commiphora omundomba (Burseraceae), a new species from Angola and Namibia
FIGURE 5. Known distribution of Commiphora omundomba. Solid circles indicate localities supported by herbarium specimens; open circles with small central dots depict sight records only.
FIGURE 4 in Commiphora omundomba (Burseraceae), a new species from Angola and Namibia
FIGURE 4. Phylogeny of Commiphora showing placement of Commiphora omundomba (arrow), based on the four-gene matrix of Gostel et al. (2016). The topology represents the 75% consensus of 1000 ultrafast bootstrap replicates using maximum likelihood inference; bootstrap percentages are shown below branches. Bolded and marked with double asterisk taxon names are species native to southwestern Africa (excluding the Caprivi Strip).
Data from: Can a Commiphora seedling germinated from an ancient seed solve a Biblical mystery?
<p>A seed recovered during archaeological excavations of a cave in the Judean desert was germinated, with radiocarbon analysis indicating an age of 993 CE– 1202 calCE. DNA sequencing and phylogenetic analysis identified the seedling as belonging to the angiosperm genus <em>Commiphora</em> Jacq., sister to three Southern African <em>Commiphora</em> species, but unique from all other species sampled to date. The germinated seedling was not closely related to <em>Commiphora</em> species commonly harvested for their fragrant oleoresins including <em>Commiphora gileadensis </em>(L.) C.Chr., candidate for the locally extinct "Judean Balsam" or "Balm of Gilead" of antiquity. GC-MS analysis revealed minimal fragrant compounds but abundance of those associated with multi-target bioactivity and a previously undescribed glycolipid compound series. Several hypotheses are offered to explain the origins, implications and ethnobotanical significance of this unknown <em>Commiphora </em>sp., the first discovered at an archaeological site in this region, including identification with a resin producing tree mentioned in Biblical sources and a possible agricultural relationship with the historic Judean Balsam.</p>
FIGURE 1 in Commiphora benguelensis (Burseraceae), a new species from Angola
FIGURE 1. Commiphora benguelensis. Flowers, seed and leaves. (A–D) Male flower; (B) with calyx and corolla partly removed, showing stamens; (C) disc as seen from the inside (schematic); (D) disc as seen from above (schematic). (E–H) Female flower; (F) with calyx and corolla partly removed, showing pistil and rudimentary stamens; (G) disc as seen from the inside (schematic); (H) disc as seen from above (schematic). (I–L) Putamen with cupular pseudo-aril; (I) sterile locule; (J) fertile locule; (K) sutural view, fertile locule left, sterile locule right; (L) apical view. (M & N) Leaves; (M) branch with trifoliolate and simple leaves; (N) branch with trifoliate leaves only. Scale bars (A & B) 1 mm, (E & F) 1 mm, (I–L) 1 mm, (M & N) 10 mm. Artist: Daleen Roodt. Vouchers: leaves from Swanepoel 324, female flowers and seed from Swanepoel 328, male flowers from Swanepoel 329.
FIGURE 2 in Commiphora namibensis (Burseraceae), a new species from Angola
FIGURE 2. Commiphora namibensis. Old stems showing flaky bark. (A) Base of plant with low branching, growing tightly wedged among rocks; (B) trunk.
FIGURE 1 in Commiphora namibensis (Burseraceae), a new species from Angola
FIGURE 1. Commiphora namibensis. (A–C) Male flower; (B) with calyx and corolla partly removed, showing stamens; (C) disc as seen from the inside (schematic, not to scale). (D–F) Female flower; (E) with calyx and corolla partly removed, showing pistil and rudimentary stamens; (F) disc as seen from the inside (schematic, not to scale). (G–J) Putamen with pseudo-aril; (G) fertile locule; (H) sterile locule; (I) sutural view, fertile locule left, sterile locule right; (J) apical view. (K) Leaves and fruit; branch with trifoliolate and simple leaves. Scale bars (A–J) 1 mm, (K) 10 mm. Artist: Daleen Roodt. Vouchers: leaves from Swanepoel 329, 333, female flowers, fruit and seed from Swanepoel 334, male flowers from Swanepoel 335.
Development of novel, Exon-Primed Intron-Crossing (EPIC) markers from EST databases and evaluation of their phylogenetic utility in Commiphora (Burseraceae)
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Data from: Microfluidic PCR-based target enrichment: a case study in two rapid radiations of Commiphora (Burseraceae) from Madagascar
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Data from: Can a Commiphora seedling germinated from an ancient seed solve a Biblical mystery?
Open the record for dataset details and reuse information.
Data from: Phylogenetic reconstruction of the myrrh genus, Commiphora (Burseraceae), reveals multiple radiations in Madagascar and clarifies infrageneric relationships
Open the record for dataset details and reuse information.
FIGURE 2 in Commiphora benguelensis (Burseraceae), a new species from Angola
FIGURE 2. Known distribution of Commiphora benguelensis.
Effect of Commiphora Myrrh Solution as a Root Canal Irrigant on Post Operative Pain and Bacterial Load Reduction in Necrotic Tooth
ClinicalTrials.gov study NCT06310044. IPD Sharing: YES. Countries: 0. Publications: 0.
FIGURE 3 in Commiphora namibensis (Burseraceae), a new species from Angola
FIGURE 3. Known distribution of Commiphora namibensis.
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