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10 results for “Tetrastigma”
Fig. 2 in Two new species of Tetrastigma (Miq.) Planch. (Vitaceae) from Thailand
Fig. 2. Distribution of Tetrastigma calcicola Kochaiph. & Trias-Blasi sp. nov. (■) and T. jaichagunii C.L.Li ex Kochaiph. & Trias-Blasi sp. nov. (●).
Fig. 1 in Two new species of Tetrastigma (Miq.) Planch. (Vitaceae) from Thailand
Fig. 1. Tetrastigma calcicola Kochaiph. & Trias-Blasi sp. nov. A. Branch and female inflorescence. B. Infructescence. C. Ovary. D. Corolla, dorsal view. E. Corolla, lateral view. F. Corolla, ventral view. G. Seed, dorsal view. H. Seed, ventral view. I. Seed, transversal section. Drawn by Woranart Thammarong. A, C–F from M. Norsaengsri & N. Tathana 7810; B from R. Pooma 1186; G–I from M. Norsaengsri & N. Tathana 9736.
Fig. 3. Tetrastigma jaichagunii C.L.Li in Two new species of Tetrastigma (Miq.) Planch. (Vitaceae) from Thailand
Fig. 3. Tetrastigma jaichagunii C.L.Li ex Kochaiph. & Trias-Blasi sp. nov. A. Branch and female inflorescence. B. Infructescence. C. Ovary. D. Corolla, ventral view. E. Corolla, dorsal view. F. Corolla, lateral view. G. Seed, ventral view. H. Seed, dorsal view. I. Seed, transversal section. Drawn by Woranart Thammarong. A, C–F from K. Larsen & S.S. Larsen 33238; B from K. Larsen et al. 4537; G–I from J.F. Maxwell 85-1060.
Resolving the Tetrastigma loheri s.l. species complex (Vitaceae) in the Philippines: No evidence for recognizing more than one species
<p><i>Tetrastigma loheri</i> (Vitaceae) is a vine species native to Borneo and the Philippines. Because it is a commonly encountered forest species in the Philippines, <i>T. loheri</i> is potentially suitable for studying patterns of genetic diversity and connectivity among fragmented forest ecosystems in various parts of this country. However, previous research suggests that <i>T. loheri </i>is part of a species complex in the Philippines (i.e. the <i>T. loheri</i> s. l. complex) that potentially also contains Philippine plants identified as <i>T. diepenhorstii, T. philippinense, T. stenophyllum, </i>and <i>T. trifoliolatum</i>. This uncertainty about its taxonomic delimitation can make it challenging to draw conclusions that are relevant to conservation from genetic studies using this species. Here, we tested the hypothesis that <i>T. loheri</i> s.l. is composed of more than one species in the Philippines. For this, we used generalized mixed Yule coalescent (GMYC) and Poisson tree process (PTP) species delimitation models to identify clades within DNA sequence phylogenies of <i>T. loheri</i> s.l. that might constitute species within this complex. Although these methods identified several putative species, these are statistically poorly supported and subsequent random forest analyses using a geometric morphometric leaf shape dataset and several other vegetative characters did not result in the identification of characters that can be used to discriminate these putative species morphologically. Furthermore, the results of principal component and principal coordinates analyses of these data suggest the absence of morphological discontinuities within the species complex. Under a unified species concept that uses phylogenetic and morphological distinction as operational criteria for species recognition, we therefore conclude that the currently available data do not support recognizing multiple species in the <i>T. loheri</i> s.l. complex. This implies that <i>T. loheri</i> is best considered as a single, morphologically variable species when used for studying patterns of genetic diversity and connectivity in the Philippines.</p>
Resolving the Tetrastigma loheri s.l. species complex (Vitaceae) in the Philippines: No evidence for recognizing more than one species
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Scoring of 13 microsatellite loci for Tetrastigma loheri in Cebu (Philippines) based on the fragment length size of their respective alleles
<p>Little is known about the effects of habitat fragmentation on the patterns of genetic diversity and genetic connectivity of species in the remaining tropical forests of Southeast Asia. This is particularly evident in Cebu, a Philippine island that has a long history of deforestation and has lost nearly all of its forest cover. To begin filling this gap, data from 13 microsatellite loci developed for Tetrastigma loheri (Vitaceae), a common vine species in Philippine forests, were used to study patterns of genetic diversity and genetic connectivity for the four largest of the remaining forest areas in Cebu. Evidence of relatively high levels of inbreeding was found in all four areas, despite no evidence of low genetic diversity. The four areas are genetically differentiated, suggesting low genetic connectivity. The presence of inbreeding and low genetic connectivity in a commonly encountered species such as T. loheri in Cebu suggests that the impact of habitat fragmentation is likely greater on rare plant species with more restricted distributions in Cebu. Conservation recommendations for the remaining forest areas in Cebu include the establishment of steppingstone corridors between nearby areas to improve the movement of pollinators and seed dispersers among them.</p>
FIGURE 2 in A new combination and new records of Tetrastigma (Vitaceae) from Thailand
FIGURE 2. Distribution map of T. assimile (), T. macrocorymbum (), T. pyriforme (') and T. triphyllum var. triphyllum () in Thailand.
FIGURE 1. A. T. assimile, B. T in A new combination and new records of Tetrastigma (Vitaceae) from Thailand
FIGURE 1. A. T. assimile, B. T. macrocorymbum, and C–D. T. triphyllum var. triphyllum. (A. photo by Phongsak Phonsena)
Scoring of 13 microsatellite loci for Tetrastigma loheri in Cebu (Philippines) based on the fragment length size of their respective alleles
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Tetrastigma hemsleyanum Polysaccharides Alleviate Imiquimod-Induced Psoriasis-Like Skin Lesions in Mice by Modulating the JAK/STAT3 Signaling Pathway
GEO Series GSE266043. Mus musculus. 6 samples. Type: Expression profiling by high throughput sequencing.
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