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Grasses and grazers in arid rangelands: Impact of sheep management on forage and non-forage grass populations
(Academic Press Ltd - Elsevier Science Ltd, 2019-04-01)
Ecological modeling that includes plant population processes as a critical determinant of vegetation dynamics is useful for sustainable rangeland management. However, we know little about how long-term sheep grazing pressure ...
Over time variation in microsatellite patterns in a natural wild potato population from northwest Argentina
(Crop Science Society of America, 2021-07)
The common potato, Solanum tuberosum L. (2n = 4x = 48), has 100–200 related wild taxonomic species endemic to the Americas, which constitute invaluable sources of genetic diversity. They form a polyploid series with 2n = 2x ...
EF-1α DNA Sequences Indicate Multiple Origins of Introduced Populations of Essigella californica (Hemiptera: Aphididae)
(2017-06)
Aphids in the pine-feeding Nearctic genus Essigella (Sternorrhyncha, Aphididae, Lachninae) have been introduced in Europe, North Africa, Oceania, and South America. Mitochondrial, nuclear, and endosymbiont DNA sequences ...
Fine structure of the utricles and gametogenesis of Codium decorticatum (Caulerpales, Chlorophyta)Ultraestructura de los utrículos y gametogénesis en Codium decorticatum (Caulerpales, Chlorophyta)
(Universidad Autónoma Metropolitana-Iztapalapa, 2003-04)
Los utrículos de Codium decorticatum presentaron una gran vacuola central rodeada por una delgada capa de citoplasma parietal. Núcleos y otras organelas se localizaron en la porción más externa del citoplasma parietal, ...
Sexual modulation in a polyploid grass: a reproductive contest between environmentally inducible sexual and genetically dominant apomictic pathways
(Nature Publishing Group, 2020-05)
In systems alternating between sexual and asexual reproduction, sex increases under unfavorable environmental conditions. In plants producing sexual and asexual (apomictic) seeds, studies on the influence of environmental ...
Sexual modulation in a polyploid Grass : a reproductive contest between environmentally inducible sexual and genetically dominant apomictic pathways
(Springer Nature editor, 2020-05-20)
In systems alternating between sexual and asexual reproduction, sex increases under unfavorable environmental conditions. In plants producing sexual and asexual (apomictic) seeds, studies on the influence of environmental ...
Extremely reduced sexual reproduction in the clonal cactus Echinopsis thelegona
(Springer Wien, 2013-04)
Sexual and asexual reproduction may occur simultaneously in some plant species. Under certain environmental conditions asexual reproduction is predominant, which generates ecological consequences on sexual fecundity. In ...
Reproductive traits in four spontaneous Pappophorum vaginatum populations in arid Argentina
(Elsevier Masson, 2021-05)
Arid zones, where native rangelands are common, are essentials for millions of people livelihood. These areas support 50% of the world's livestock and are where 44% of the world's food is grown. In rangelands of Central ...
Sexuality generates diversity in the Aflatoxin Gene cluster: evidence on a global scale
(Public Library Of Science, 2013-08)
Aflatoxins are produced by Aspergillus flavus and A. parasiticus in oil-rich seed and grain crops and are a serious problem in agriculture, with aflatoxin B1 being the most carcinogenic natural compound known. Sexual ...
Considerations for the application of the Coral Tree Nursery method in the recovery of populations of Acropora valida (Acroporidae) in two neritic zones of Galapagos, EcuadorConsideraciones para la aplicación del método Coral Tree Nursery en la recuperación de poblaciones de Acropora valida (Acroporidae) en dos zonas neríticas de Galápagos, Ecuador
(Universidad Internacional del Ecuador, extensión Guayaquil, 2018)