117 documents found, page 1 of 12
The Complex Genetic Legacy of Hybridization and Introgression between the Rare ...
Draper, David; Riofrío, Lorena; Naranjo, Carlos; Marques, IsabelHybridization and introgression are complex evolutionary mechanisms that can increase species diversity and lead to speciation, but may also lead to species extinction. In this study, we tested the presence and genetic consequences of hybridization between the rare and Ecuadorian endemic O. loxensis van der Werff and the widespread O. infrafoveolata van der Werff (Lauraceae). Phenotypically, some trees are diff...
Transcriptomic Analyses Reveal That Coffea arabica and Coffea canephora Have Mo...
Marques, Isabel; Fernandes, Isabel; Paulo, Octávio S.; Rodrigues, Ana P.; Partelli, Fábio L.; DaMatta, Fábio M.; Ribeiro-Barros, Ana I.Increasing exposure to unfavorable temperatures and water deficit imposes major con- straints on most crops worldwide. Despite several studies regarding coffee responses to abiotic stresses, transcriptome modulation due to simultaneous stresses remains poorly understood. This study unravels transcriptomic responses under the combined action of drought and temperature in leaves from the two most traded species: ...
Transcriptomic Analyses Reveal That Coffea arabica and Coffea canephora Have Mo...
Marques, Isabel; Fernandes, Isabel; Paulo, Octávio S.; Batista, Dora; Lidon, Fernando C.; Rodrigues, Ana P.; Partelli, Fábio L.; DaMatta, Fábio M.Increasing exposure to unfavorable temperatures and water deficit imposes major constraints on most crops worldwide. Despite several studies regarding coffee responses to abiotic stresses, transcriptome modulation due to simultaneous stresses remains poorly understood. This study unravels transcriptomic responses under the combined action of drought and temperature in leaves from the two most traded species: Co...
Editorial: Women in conservation and restoration ecology 2022
Marques, Isabel; Hamilton, Diana J.; Barbeau, Myriam A.; Morrison, Clare; Chauvenet, Alienor L. M.
Overexpression of Water-Responsive Genes Promoted by Elevated CO2 Reduces ROS a...
Marques, Isabel; Fernandes, Isabel; Paulo, Octávio S.; Batista, Dora; Lidon, Fernando C.; Partelli, Fábio; DaMatta, Fábio M.; Ribeiro-Barros, Ana I.Drought is a major constraint to plant growth and productivity worldwide and will aggravate as water availability becomes scarcer. Although elevated air [CO2] might mitigate some of these effects in plants, the mechanisms underlying the involved responses are poorly understood in woody economically important crops such as Coffea. This study analyzed transcriptome changes in Coffea canephora cv. CL153 and C. ara...
Genomic evaluation of Coffea arabica and its wild relative Coffea racemosa in M...
Tapaça, Inocência da Piedade Ernesto; Mavuque, Lopes; Corti, Riccardo; Pedrazzani, Samuele; Maquia, Ivete S. A.; Tongai, Castigo; Partelli, Fábio LuizClimate change is negatively affecting the coffee value chain, with a direct effect on approximately 100 million people from 80 countries. This has been attributed to the high vulnerability of the two-mainstream species, Coffea arabica and Coffea canephora, to extreme weather events, with notable uneven increases in market prices. Taking into account the narrow genetic plasticity of the commercial coffee cultiv...
A first look at sea-lavenders genomics – can genome wide SNP information tip th...
Pina Martins, Francisco; Caperta, Ana D.; Conceição, Sofia I. R.; Nunes, Vera L.; Marques, Isabel; Paulo, Octávio S.Background Sea-lavenders (Limonium Mill., Plumbaginaceae) are a cosmopolitan group of diploid and polyploid plants often adapted to extreme saline environments, with a mostly Tethyan distribution, occurring in the Mediterranean, Irano-Turanian, Euro-Siberian and in the New World. The halophylic Limonium vulgare polyploid complex in particular, presents a large distribution throughout extreme salt-marsh habitats...
Impact of climate changes in the suitable areas for Coffea arabica L. productio...
Cassamo, Crimildo T.; Draper, David; Romeiras, Maria M.; Marques, Isabel; Chiulele, Rogério; Rodrigues, Marisa; Stalmans, Marc; Partelli, Fábio L.Climate changes (CC) are a main global phenomenon, with a worldwide impact on natural and agricultural ecosystems. The objective of this study was to analyse the potential impact of future CC on the suitability of areas for rainfed coffee growth, both at the Mozambique national scale and in the Gorongosa Mountain, under Agroforestry (AFS) and Full Sun (FS) management systems. The latter study site is part of th...
Ovule transcriptome analysis discloses deregulation of genes and pathways in se...
Caperta, Ana D.; Fernandes, Isabel; Conceição, Sofia I. R.; Marques, Isabel; Róis, Ana S.; Paulo, Octávio S.The genus Limonium Mill. (sea lavenders) includes species with sexual and apomixis reproductive strategies, although the genes involved in these processes are unknown. To explore the mechanisms beyond these reproduction modes, transcriptome profiling of sexual, male sterile, and facultative apomictic species was carried out using ovules from different developmental stages. In total, 15,166 unigenes were found t...
Genetic diversity and structure in two epiphytic orchids from the montane fores...
Riofrío, María; Naranjo, Carlos; Mendoza, Alberto; Draper, David; Marques, IsabelEcuador has a high diversity of orchids, but little is known about levels of genetic diversity for the great majority of species. Understanding how orchids might adapt to changes is crucial as deforestation and fragmentation of forest ecosystems threaten the survival of many epiphytic orchids that depend on other species, such as fungi and their host trees, for germination, growth, and establishment. Overcollec...