A5038312857- Plant Diversity and Evolution
- Plant and animal studies
- Coffee research and impacts
- Plant and Fungal Species Descriptions
- Cocoa and Sweet Potato Agronomy
- Chemical synthesis and alkaloids
- Ethnobotanical and Medicinal Plants Studies
- Mediterranean and Iberian flora and fauna
- Plant Virus Research Studies
- Alkaloids: synthesis and pharmacology
- Organic Food and Agriculture
- Traditional and Medicinal Uses of Annonaceae
- African Botany and Ecology Studies
- Plant Parasitism and Resistance
- Botanical Research and Applications
- Global trade, sustainability, and social impact
- Botany, Ecology, and Taxonomy Studies
- Plant Taxonomy and Phylogenetics
- Chromosomal and Genetic Variations
- Reproductive Biology and Fertility
- Plant tissue culture and regeneration
- Forest Insect Ecology and Management
- Plant and Fungal Interactions Research
- Ecology and Conservation Studies
- CRISPR and Genetic Engineering
Royal Botanic Gardens, Kew
2015-2025
University of Illinois Chicago
2024
University of South Australia
2022
Swedish Museum of Natural History
2021
Utah State University
2006-2015
Missouri Botanical Garden
2009-2012
Queen Mary University of London
2007
University of Johannesburg
2007
Leiden University
2004
University of Reading
1990
An annotated taxonomic conspectus of the genus Coffea (coffee) is presented, with 103 species and seven infraspecific taxa enumerated. The history summarized details circumscription Coffeeae, Coffea, subgeneric groups are given. For each accepted name, author, place publication, type species, synonyms Useful illustrations literature cited, where available. distribution taxon as a text note using Taxonomic Database Working Group (TDWG) system; vegetation altitude given in an ecological...
Precise modelling of the influence climate change on Arabica coffee is limited; there are no data available for indigenous populations this species. In study we model present and future predicted distribution Arabica, identify priorities in order to facilitate appropriate decision making conservation, monitoring research. Using perform bioclimatic examine with HadCM3 three emission scenarios (A1B, A2A, B2A) over time intervals (2020, 2050, 2080). The models show a profoundly negative...
The negative effects of climate change are already evident for many the 25 million coffee farmers across tropics and 90 billion dollar (US) industry. berry borer (Hypothenemus hampei), most important pest worldwide, has benefited from temperature rise in East Africa: increased damage to crops expansion its distribution range have been reported. In order anticipate threats prioritize management actions H. hampei we present here, maps on future distributions producing areas Africa. Using...
Morphological and molecular phylogenetic studies show that there is a close relationship between Coffea Psilanthus. In this study we reassess species relationships based on improved sampling for Psilanthus, including P. melanocarpus, shares morpho-taxonomic characters of both genera. Analyses are performed using parsimony Bayesian inference, sequence data from four plastid regions [trnL–F intron, trnL–F IGS, rpl16 intron accD–psa1 intergenic spacer (IGS)] the internal transcribed (ITS)...
Extinction threatens at least 60% of wild coffee species, including those that are key to the future global sector.
Angiosperms are the cornerstone of most terrestrial ecosystems and human livelihoods
Analyses of distribution, diversity, endemism, and taxonomic effort for Rubiaceae are reported, based on queries from a World Checklist database. widespread occur in all major regions the world except Antarctic Continent, but predominantly group tropics with greatest diversity low- to mid-altitude humid forests. A count species genera is given (13,143 spp./611 genera), which confirms that this fourth largest angiosperm family. Psychotria L. genus (1834 spp.) third genus. Most (72%) have...
The phenolic composition of Coffea leaves has barely been studied, and therefore this study conducts the first detailed survey, focusing on mangiferin hydroxycinnamic acid esters (HCEs). Using HPLC, including a new technique allowing quantification feruloylquinic together with mangiferin, histochemical methods, content tissue localization were compared in fruits C. pseudozanguebariae, arabica canephora. HCE was evaluated for 23 species native to Africa or Madagascar. various statistical data...
Abstract. Livestock numbers are increasing to supply the growing demand for meat-rich diets. The sustainability of this trend has been questioned, and future environmental changes, such as climate change, may cause some regions become less suitable livestock. wild herbivores strongly dependent on nutritional chemistry forage plants. Nutrition is positively linked weight gains, milk production reproductive success, nutrition also a key determinant enteric methane production. In meta-analysis,...
Summary Six new species of Coffea are described as to science: callmanderi , C. darainensis kalobinonensis microdubardii, pustulata and rupicola . All six endemic northern Madagascar; four narrowly specific forest areas. Associated information, including distribution maps, conservation assessments, phenology taxonomic notes provided, two illustrated with line drawings.
The phylogenetic relationships between species of Coffea and Psilanthus remain poorly understood, owing to low levels sequence variation recovered in previous studies, coupled with relatively limited sampling. In this study, the are assessed based on substantially increased molecular data greatly improved Phylogenetic using parsimony, from four plastid regions [trnL–F intron, trnL–F intergenic spacer (IGS), rpl16 intron accD–psa1 IGS], internal transcribed (ITS) region nuclear rDNA (ITS...
Abstract Arabica coffee ( Coffea arabica ) is a key crop in many tropical countries and globally provides an export value of over US$13 billion per year. Wild fundamental importance for the global sector direct within Ethiopia, as source harvestable income planting stock. Published studies show that climate change projected to have substantial negative influence on current suitable growing areas indigenous Ethiopia South Sudan. Here we use all available future projections species based...
High-field and low-field proton NMR spectroscopy were used to analyse lipophilic extracts from ground roast coffees. Using a sample preparation method that produced concentrated extracts, small marker peak at 3.16 ppm was observed in 30 Arabica coffees of assured origin. This signal has previously been believed absent Arabicas, as for detecting adulteration with robusta. Via 2D 600 MHz LC-MS, 16-O-methylcafestol 16-O-methylkahweol detected the first time coffee shown be responsible peak....
Comprising five families that vastly differ in species richness-ranging from Gelsemiaceae with 13 to the Rubiaceae 13,775 species-members of Gentianales are often among most species-rich and abundant plants tropical forests. Despite considerable phylogenetic work within particular genera, several alternative topologies for family-level relationships have been presented previous studies.Here we present a phylogenomic analysis based on nuclear genes targeted by Angiosperms353 probe set...
The circumscription of Coffeeae (Rubiaceae) and phylogenetic relationships within the tribe were evaluated using sequence data from four plastid regions ( trnL‐F intron, intergenic spacer [IGS], rpl16 accD‐psa1 IGS) a morphological set. Eleven candidates for inclusion in examined data, further three investigated morphology alone. Based on previous analysis subfamily Ixoroideae, nine genera representing five tribes used as outgroups. Our results support an enlarged Coffeeae, containing 11...
Self-incompatibility (SI) is widespread in the angiosperms, but identifying biochemical components of SI mechanisms has proven to be difficult most lineages. Coffea (coffee; Rubiaceae) a genus old-world tropical understory trees which vast majority diploid species utilize mechanism gametophytic self-incompatibility (GSI). The S-RNase GSI system was one first biochemically characterized, and likely represents ancestral Eudicot condition as evidenced by its functional characterization both...