Resultados de búsqueda - "sexuality"

Caracterización morfológica de genotipos de cacao establecidos en las zonas productoras de los municipios de Mariquita y Palocabildo (Tolima) por Polanco Díaz, Eliseo, Moreno, Jorge Mario, Quiñonez, Freddy

“…Sin embargo, la diversidad genética del cacao en algunas zonas no es favorable, ya que muchos de los cultivares son poco productivos, están expuestos a problemas sanitarios y hay condiciones de incompatibilidad sexual, por lo que generan alta mano de obra y el retorno de ingresos es muy bajo. …”
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Gene flow between crops and their wild relatives por Andersson, Meike S., Vicente, M. Carmen de

“…The 20 crop chapters are divided into the following sections: * General biological information (crop's scientific name, its center(s) of origin and diversity, flowering, pollen dispersal and longevity, sexual and vegetative reproduction, seed dispersal and dormancy, the existence and persistence of volunteers and feral plants, and the existence of weeds and their invasiveness potential); * Presentation of the most important CWR (information about their ploidy levels, diverse genomes, centers of origin, and geographic distribution); * Assessment of the crop's potential for hybridization with its wild relatives (relevant studies and literature); * Pollen flow studies related to pollen dispersal distances and hybridization rates (and recommended separation distances); * Overview summarizing the state of development of GM technology (global GM crop area, GM traits currently researched for the crop, and countries where GM varieties are grown commercially or in field trials). …”
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Genome-wide association studies for sex determination and cross-compatibility in water yam (Dioscorea alata L.) por Mondo, J., Agre, A.P., Asiedu, R., Akoroda, M., Asfaw, A.

“…This study provides valuable insights into the genetic control of D. alata sexual reproduction. It opens an avenue for developing genomic tools for predicting hybridization success in water yam breeding programs.…”
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Extensive genotypic diversity in a recombining population of the apicomplexan parasite Theileria parva por Katzer, F., Ngugi, D., Oura, C., Bishop, Richard P., Taracha, E.L.N., Walker, A.R., McKeever, Declan J.

“…We evaluated sexual recombination in the apicomplexan parasite Theileria parva using genome-wide marker analysis of haploid sporozoite populations obtained from infected Rhipicephalus appendiculatus ticks. …”
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Ecological knowledge of regeneration from seed in neotropical forest trees: implications for natural forest management por Guariguata, Manuel R., Pinard, M.A.

“…Tree seed production can be influenced by the selective removal of neighbors of the same species (due to insufficient pollen transfer). flowering asynchrony, and attributes of the species sexual system. The extent to which an area is supplied by seed can be affected by dispersal mechanism, spatio-temporal limitations to seed dispersal, and tree size-dependent levels of seed production at the species level. …”
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Cyclical transmission of pathogenic Trypanosoma species by gamma-irradiated sterile male Glossina morsitans morsitans por Moloo, S.K.

“…They were subsequently mated at 8 days old with 3-day-old normal, virgin females. A batch of sexually fertile males which had been infected as tenerals on the goat at the same time were similarly mated to serve as controls. …”
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Marker-assisted introgression of resistance to cassava mosaic disease into Latin American germplasm for the genetic improvement of cassava in Africa por Okogbenin, Emmanuel, Porto, M.C.M., Egesi, Chiedozie N., Mba, C, Espinosa, E., Santos Meléndez, Luís Guillermo, Ospina, C., Marín, J.A., Barrera Sabogal, E., Gutiérrez Artunduaga, Janneth Patricia, Ekanayake, I.J., Iglesias, C.A., Fregene, Martin A.

“…The first set of introductions comprised sexual seeds that led to the evaluation of 20,032 seedlings in Nigeria between 1990 and 1994. …”
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Methods for detecting the cassava bacterial blight pathogen : A practical approach for managing the disease por Verdier, Valerie M., Ojeda, S, Mosquera Cifuentes, Gloria Maria

“…The probe detected Xam strains in crude extracts of leaf and stem lesions, cassava fruits and sexual seeds that were naturally infected. Overall sensitivity of the dot-blot method was about103CFU per reaction. …”
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Characterization of Thielaviopsis paradoxa isolates from oil palm in Colombia, Ecuador and Brazil por Álvarez, Elizabeth, Llano Rodríguez, Germán Alberto, Loke, John Bernard, Chacón Sánchez, María I.

“…The genetic diversity of the isolates from South America was intermediate, and therefore, T. paradoxa is likely to be predominantly clonal compared with Ceratocystis species. Sporadic sexual reproduction may occur for T. paradoxa but is secondary to clonal reproduction. …”
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Vegetative compatibility among isolates of Colletotrichum gloeosporioides from yam (Dioscorea spp.) in Nigeria por Abang, Mathew M., Hoffmann, P., Winter, S., Green, K.R., Wolf, G.A.

“…The VCG diversity revealed by this study suggests that in addition to asexual reproduction, sexual reproduction may play an important role in the epidemiology of anthracnose on yam.…”
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Respuesta de la Cinchona officinalis L. al método de propagación asexual mediante estacas y esquejes por Villar Cabeza, Miguel Ángel, Marcelo Bazán, Fátima Elizabeth, Baselly Villanueva, Juan Rodrigo

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Efecto de Trichoderma harzianum T-22 sobre un cultivo de judía por Urbaneja, Alberto, Galeano Revert, Magda, Lara Acedo, Lidia, Téllez-Navarro, María M.

“…Trichoderma harzianum Rifai, 1969, se encuadra dentro de los hongos deuteromicetos o también llamados hongos imperfectos donde se incluyen un gran número de especies de reproducción únicamente asexual, ya sea porque no tienen o porque no se conoce su reproducción sexual. T. harzianum se caracteriza por sus conidióforos terminados en fiálidas, esporas lisas, hialinas, con un solo núcleo, verdosas, subglobosas u ovoides y colonias de crecimiento rápido (7-9 cm) (Gams & Bisset, 1998).…”
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Efficient search for new resistant genotypes to the citrus Tristeza closterovirus in the orange subfamily Aurantioideae por Mestre, P. F., Asins, María J., Pina, José A., Navarro, Luis

“…The finding of CTV resistance in this species, closely related to cultivated Citrus species, opens a new arena for CTV-resistance improvement of oranges and mandarines by sexual hybridization. \ The searching strategy based on phylogenetic data has been successful, whereas the other one may be worthwhile only when the search is restricted to the species where linkage analysis is available. …”
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Evaluacion de dos metodologias de capacitación en mejoramiento de maíz para pequeños agricultores por Bueso U., Francisco J.

“…En general, la capacitación incluyó la discusión de temas específicos sobre el comportamiento sexual del maíz, herencia, variación y prácticas de la metodología de selección, cruzamientos, conservación de poblaciones mejoradas, y manejo postcosecha de la semilla producida. …”
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Diseño de una estrategia para el lanzamiento y la comercialización del alevín de “súper macho”, por parte de la empresa Tilapia Industrial S.A. de CV en el mercado de El Salvador por Echegoyén S., Patricia E.

“…El principal problema en el cultivo de tilapia es el engorde no deseado de las hembras ya que estas crecen más lento que los machos por dedicar toda su energía a la maduración sexual. Por esto la empresa Til-gen creo la GTM (tilapia genéticamente macho) mejor conocida como “súper macho”. …”
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Flow cytometry-based determination of ploidy from dried leaf specimens in genomically complex collections of the tropical forage grass Urochloa por Tomaszewska, Paulina, Pellny, Till K., Hernández, Luis Miguel, Mitchell, Rowan A. C., Castiblanco, Valheria, Vega, Jose J. de, Schwarzacher, Trude, Heslop-Harrison, J.S.

“…Ploidy of some 348 forage grass accessions (ploidy range from 2x to 9x), from international genetic resource collections, showing variation in basic chromosome numbers and reproduction modes (apomixis and sexual), were determined using our defined standard protocol. …”
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Crossing strategy for breeding campero chickens. An inta-university collaborative project por Canet, Zulma Edith, Dottavio, Ana María, Romera, Bernardo Martín, Librerá, José Ernesto, Advínculo, Sabrina A., Martines, Araceli, Di Masso, Ricardo José

“…The evaluation of productive characters at sexual maturity, dynamic pattern of egg weight gain and laying curves allowed to qualify the females as layers.…”
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History, evolution and domestication of garlic: a review por Dhall, Rajinder Kumar, Cavagnaro, Pablo, Singh, Hira, Mandal, Subhankar

“…Herein, we reviewed and critically discussed garlic historic and current use, its taxonomic and informal classifications, molecular mechanisms of garlic sterility, and progresses made toward unlocking sexual reproduction and its potential impact for garlic breeding and production.…”
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A wolf in sheep’s clothing: The description of a fly resembling jumping spider of the genus Scoturius Simon, 1901 (Araneae: Salticidae: Huriini) por Perger, Robert, Rubio, Gonzalo

“…However, recent literature has attributed the fly-resembling characteristics in Saitis to sexual signalling during courtship. The lack of observation of fly mimicry in spiders is not surprising as flies belong to the most important prey item group of spiders. …”
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Mating type of native Aspergillus flavus strains causing Corn Ear Rot in Argentina por Ruiz Posse, Agustina María, Torrico Ramallo, Ada Karina, Barontini, Javier Miguel, Camiletti, Boris Xavier

“…This study focused on identifying the sexual mating types, MAT1-1 and MAT1-2, through PCR in A. flavus strains isolated from maize ears in two agricultural regions of Argentina—one subtropical and the other temperate—from the 2012/13 to the 2020/21 growing season. …”
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