Morphological characterization of native maize populations of the ratón race from Coahuila, Mexico

Froylan Rincon Cesar Petroli (2023, [Artículo])

Repeatability Index Representative Subset of Diversity Maize Raton Race CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA GENETIC DIVERSITY (AS RESOURCE) ZEA MAYS MORPHOLOGY PHENOTYPING VARIETIES

Perfil epidemiológico y características clínicas de la escleritis en una población del noreste de México

YOLANDA MACIAS RODRIGUEZ (2022, [Artículo])

La epiescleritis (ESC) y escleritis (SC) son enfermedades que se caracterizan por causar inflamación de la capa externa fibrosa del globo ocular, la esclera y epiesclera. Estos padecimientos fueron descritos desde el siglo XIX y el Dr. Watson proporcionó la clasificación clínica que se usa para ordenarlas en sus diferentes subtipos. La etiología de las ESC y SC puede ser idiopática o asociada a causas específicas, como enfermedades autoinmunes, traumatismos, cirugías o infecciones. En diversas poblaciones del mundo se han reportado previamente las características de las ESC y SC. Sin embargo, en la población mexicana solo existen reportes de casos de presentaciones inusuales de ESC y SC y una sola serie reportando las características de la SC. Por lo anterior, se decidió llevar a cabo el presente estudio para expandir el conocimiento acerca de las características de la ESC y SC en la población mexicana. Se realizó un estudio retrospectivo y observacional. El diseño metodológico corresponde a una serie de casos. Se incluyeron pacientes con diagnóstico de ESC y SC, que hubieran firmado el consentimiento informado para participación en investigación clínica. Se analizaron los expedientes físicos y electrónicos de los pacientes que cumplieran con los criterios de inclusión, se tomó la información correspondiente a las variables previamente establecidas y se vació en una hoja de Microsoft Excel y posteriormente se analizaron estadísticamente con el programa SPSS (IBM). Se encontraron y analizaron 55 casos de ESC y 130 casos de SC. En ambos grupos hubo una predominancia del sexo femenino y la edad media fue mayor en pacientes con SC que en ESC (52.26 vs. 44.78 años). El tipo más común de ESC fue la simple y en SC la anterior difusa. La SC posterior fue el subtipo menos frecuente. La etiología más frecuente en ESC y SC fue la idiopática, y la segunda en frecuencia fue la espondiloartropatía asociada al haplotipo HLA B27 y la artritis reumatoide respectivamente. Los motivos de consulta más frecuente fueron ojo rojo solamente y ojo rojo doloroso. Los síntomas más comúnmente descritos por los pacientes con ESC y SC fueron ojo rojo, sensación de cuerpo extraño, dolor, lagrimeo y visión borrosa. Asimismo, los datos clínicos más comúnmente encontrados en pacientes con ESC y SC fueron la ingurgitción de los plexos conjuntivales y epiesclerales, queratopatía punteada superficial y queratitis ulcerativa periférica. La agudeza visual promedio fue buena tanto en ESC como en SC, siendo de 20/25 y 20/30 respectivamente. Para el análisis de tratamiento y recurrencias, se consideraron a los pacientes con un seguimiento mayor a una consulta, consistiendo estos últimos en 35 ESC y 108 SC. En la ESC, 91.4% de los pacientes fueron tratados con un AINE oral, 57.1% con esteroide tópico y 5.7% con AINE tópico. En SC, 76.9% usaron un AINE oral, 62% un esteroide oral, 50% un esteroide tópico y 52.7% un agente imnunosupresor. 29.6% de los pacientes con SC tuvieron una recurrencia. Al comparar la presente serie con las series de ESC y SC reportadas previamente en la literatura se encontró una considerable cantidad de similitudes, como la predominancia del sexo femenino, la media de edad, la incidencia estimada, los síntomas y signos, el tratamiento empleado y la cantidad de recurrencias y su asociación a una edad menor. Debido a todos lo anterior, se concluyó que la presentación de las ESC y SC en la población mexicana es similar a la presentación en otras poblaciones del mundo, previamente reportadas.

Especialidad en Oftalmología

MEDICINA Y CIENCIAS DE LA SALUD CIENCIAS MÉDICAS CIENCIAS CLÍNICAS OFTALMOLOGÍA

Shopping centers at zmcm. The companies, location and production of a neoliberal urban space

Dante-Guillermo Celis-Galindo (2021, [Artículo, Artículo])

This work aims to analyze different aspects of shopping center at the Metropolitan Zone of Mexico City as location, opening year and developer company. Also it will identify diverse characteristics, economic and political phases in the country as well as the role of the development companies and shopping centers as a producers of a neoliberal urban space. This paper presents the way shopping centers importance has growth and how it had become in a neoliberal city characteristic; with this the characteristics of these urban works are visualized and related with their construction companies and local governments which has caused the transformation of the city. After conducting a census, with more than two hundred shopping centers, the study was delimited to those with the greatest significance by size, location and developer. At the beginning of the paper, the characteristics that shopping malls should have for the realization of this work are mentioned. In a first section an approach is made to the theoretical elements of the city and the shopping center and therefore identifying the developers that most  nfluence this process; the second section addresses the characteristics of places by location and the characteristics that urban planners have depending on the area where they are; the third section discusses the years of opening, the squares and relates to government administrations and the economic characteristics of the country; and finally, a tour of the urban regulations in Mexico City and its latest modifications is made.

shopping center neoliberalism space urban space construction company centro comercial neoliberalismo espacio espacio urbano empresa constructora HUMANIDADES Y CIENCIAS DE LA CONDUCTA HUMANIDADES Y CIENCIAS DE LA CONDUCTA

Mining alleles for tar spot complex resistance from CIMMYT's maize Germplasm Bank

Martha Willcox Juan Burgueño Daniel Jeffers Zakaria Kehel Rosemary Shrestha Kelly Swarts Edward Buckler Sarah Hearne Charles Chen (2022, [Artículo])

Maize Landraces Maize Genetic Resources Allelic Diversity Rare Alleles Phenotypic Characterization Tropical Maize Phyllachora maydis CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA MAIZE LANDRACES GENETIC RESOURCES ALLELES FOLIAR DISEASES CLIMATE CHANGE

Genome-wide association analysis of tan spot disease resistance in durum wheat accessions from Tunisia

marwa laribi Sarrah Ben M'barek Carolina Sansaloni Susanne Dreisigacker (2023, [Artículo])

CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA DISEASE RESISTANCE HARD WHEAT GENETIC DIVERSITY GENOME-WIDE ASSOCIATION STUDIES LANDRACES POPULATION STRUCTURE

Distribution of Puccinia striiformis f. sp. tritici races and virulence in wheat growing regions of Kenya from 1970 to 2014

Lesley Boyd sridhar bhavani Cristobal Uauy Annemarie Fejer Justesen Mogens Hovmoller (2022, [Artículo])

Cereals and Grains Pathogen Diversity Puccinia f. sp. tritici Stripe Rust Yellow Rust CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA CEREALS FIELD CROPS FUNGI PATHOGENICITY RUSTS TRITICUM AESTIVUM

Spatial phylogenetics in Hechtioideae (Bromeliaceae) reveals recent diversification and dispersal

La filogenética espacial de Hechtioideae (Bromeliaceae) revela diversificación y dispersión reciente

Ricardo Rivera Martinez Ivón Mercedes Ramírez Morillo José Arturo de Nova Vázquez GERMAN CARNEVALI FERNANDEZ CONCHA Juan Pablo Pinzón Katya J. Romero-Soler NESTOR EDUARDO RAIGOZA FLORES (2022, [Artículo])

Background: Hechtioideae is a group of Bromeliaceae that is distributed in Megamexico III. In recent years, evolutionary relationships within this lineage have been studied; however, the biogeography of these plants have not yet been explored from a phylogenetic framework. The integration of geographic and phylogenetic information in the evolutionary study of organisms has facilitated the identification of patterns, as well as the exploration of new hypotheses that allow for the understanding the processes that have influenced the evolutionary history of lineages. Questions and/or Hypotheses: What is the biogeographic history of this lineage? How Hechtioideae has diversified over time? Results: The Neotropical region has the highest species richness of Hechtioideae and the Mexican Transition Zone is the area with the greatest phylogenetic diversity. This lineage presented its highest diversification rate during the late Miocene and Pleistocene (6.5-1 Ma). The ancestral area of the group corresponds to the Neotropical region and the Mexican Transition Zone. In addition, Hechtioideae spread across its current ranges through multiple dispersal events associated with climatic and geological events during the last 10 Ma. Conclusions: Hechtioideae is a group of recent origin whose evolutionary history has been strongly influenced by geological and climatic events over the past 10 Ma, such as the glacial and interglacial periods of the Pleistocene and the great tectonic and volcanic activity that led to the formation of the Trans-Mexican Volcanic Belt. © 2022 Sociedad Botanica de Mexico, A.C. All rights reserved.

ANCESTRAL AREA RECONSTRUCTION BIOGEOGRAPHY CONSERVATION DISTRIBUTION PHYLOGENETIC DIVERSITY BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA VEGETAL (BOTÁNICA) ECOLOGÍA VEGETAL ECOLOGÍA VEGETAL

Shopping for Ecological Indices? On the Use of Incidence-Based Species Compositional Similarity Measures

IAN MACGREGOR FORS FEDERICO ESCOBAR SARRIA JUAN FERNANDO ESCOBAR IBAÑEZ NATALIA MESA SIERRA FREDY ALEXANDER ALVARADO ROBERTO Rafael Rueda Hernández CLAUDIA ELIZABETH MORENO ORTEGA Ina Falfán ERICK JOAQUIN CORRO MENDEZ Eduardo Octavio Pineda Arredondo Amandine Bourg JOSE LUIS AGUILAR LOPEZ (2022, [Artículo])

"β-diversity has been under continuous debate, with a current need to better understand the way in which a new wave of measures work. We assessed the results of 12 incidence-based β-diversity indices. Our results of gradual species composition overlap between paired assemblages considering progressive differences in species richness show the following: (i) four indices (β-2, β-3, β-3.s, and βr) should be used cautiously given that results with no shared species retrieve results that could be misinterpreted; (ii) all measures conceived specifically as partitioned components of species compositional dissimilarities ought to be used as such and not as independent measures per se; (iii) the non-linear response of some indices to gradual species composition overlap should be interpreted carefully, and further analysis using their results as dependent variables should be performed cautiously; and (iv) two metrics (βsim and βsor) behave predictably and linearly to gradual species composition overlap. We encourage ecologists using measures of β-diversity to fully understand their mathematical nature and type of results under the scenario to be used in order to avoid inappropriate and misleading inferences."

Beta diversity Nestedness Replacement Richness difference Species turnover BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA VEGETAL (BOTÁNICA) ECOLOGÍA VEGETAL ECOLOGÍA VEGETAL

Bacterial communities in the rhizosphere at different growth stages of maize cultivated in soil under conventional and conservation agricultural practices

Yendi Navarro-Noya Bram Govaerts Nele Verhulst Luc Dendooven (2022, [Artículo])

Farmers in Mexico till soil intensively, remove crop residues for fodder and grow maize often in monoculture. Conservation agriculture (CA), including minimal tillage, crop residue retention and crop diversification, is proposed as a more sustainable alternative. In this study, we determined the effect of agricultural practices and the developing maize rhizosphere on soil bacterial communities. Bulk and maize (Zea mays L.) rhizosphere soil under conventional practices (CP) and CA were sampled during the vegetative, flowering and grain filling stage, and 16S rRNA metabarcoding was used to assess bacterial diversity and community structure. The functional diversity was inferred from the bacterial taxa using PICRUSt. Conservation agriculture positively affected taxonomic and functional diversity compared to CP. The agricultural practice was the most important factor in defining the structure of bacterial communities, even more so than rhizosphere and plant growth stage. The rhizosphere enriched fast growing copiotrophic bacteria, such as Rhizobiales, Sphingomonadales, Xanthomonadales, and Burkholderiales, while in the bulk soil of CP other copiotrophs were enriched, e.g., Halomonas and Bacillus. The bacterial community in the maize bulk soil resembled each other more than in the rhizosphere of CA and CP. The bacterial community structure, and taxonomic and functional diversity in the maize rhizosphere changed with maize development and the differences between the bulk soil and the rhizosphere were more accentuated when the plant aged. Although agricultural practices did not alter the effect of the rhizosphere on the soil bacterial communities in the flowering and grain filling stage, they did in the vegetative stage.

Community Assembly Functional Diversity Intensive Agricultural Practices Plant Microbiome CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA SUSTAINABLE AGRICULTURE TILLAGE SOIL BACTERIA MAIZE

Characterization of Mediterranean durum wheat for resistance to Pyrenophora tritici-repentis

marwa laribi Khaled Sassi Sarrah Ben M'barek (2022, [Artículo])

Tan Spot Durum Wheat Phenotypic Diversity CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA SPOTS HARD WHEAT LANDRACES PHENOTYPIC VARIATION PLANT HEIGHT DISEASE RESISTANCE