Diseño de un sistema integrado de producción agropecuaria en el municipio de Popayán (Cauca)

Se diseñó un sistema integrado de producción agropecuaria desde los principios de la agroecología en la granja la Colina ubicada en la Vereda Cajete, Municipio de Popayán, como contribución al proceso de certificación del programa agroambiental de la Universidad Autónoma Intercultural Indígena (UAIIN). Este proceso se llevó a cabo mediante levantamiento topográfico, análisis físico-químico de suelos, químico y microbiológico de aguas, evaluación de sustentabilidad mediante indicadores del sistema productivo actual y propuesta de ruta de transición, proyectando el sistema hacia la sustentabilidad, y contribuyendo en los procesos de capacitación a las comunidades que integran la UAIIN en la conservación de los recursos y recuperación de especies propias

Development of a Panel of Genome-Wide Ancestry Informative Markers to Study Admixture Throughout the Americas

Most individuals throughout the Americas are admixed descendants of Native American, European, and African ancestors. Complex historical factors have resulted in varying proportions of ancestral contributions between individuals within and among ethnic groups. We developed a panel of 446 ancestry informative markers (AIMs) optimized to estimate ancestral proportions in individuals and populations throughout Latin America. We used genome-wide data from 953 individuals from diverse African, European, and Native American populations to select AIMs optimized for each of the three main continental populations that form the basis of modern Latin American populations. We selected markers on the basis of locus-specific branch length to be informative, well distributed throughout the genome, capable of being genotyped on widely available commercial platforms, and applicable throughout the Americas by minimizing within-continent heterogeneity. We then validated the panel in samples from four admixed populations by comparing ancestry estimates based on the AIMs panel to estimates based on genome-wide association study (GWAS) data. The panel provided balanced discriminatory power among the three ancestral populations and accurate estimates of individual ancestry proportions (R2>0.9 for ancestral components with significant between-subject variance). Finally, we genotyped samples from 18 populations from Latin America using the AIMs panel and estimated variability in ancestry within and between these populations. This panel and its reference genotype information will be useful resources to explore population history of admixture in Latin America and to correct for the potential effects of population stratification in admixed samples in the region

Respuesta del pasto palmera (Setaria poiretiana) al sombrío. Una opción de producción en sistemas silvopastoriles

La investigación se llevó a cabo en la granja Los Naranjos ubicada en la Vereda La Venta del Municipio de Cajibío del Departamento del Cauca. La sombra de los árboles no permite el progreso del forraje cultivado en su entorno y no se conocen especies tolerantes a la sombra que se adapten a las condiciones de clima medio y suelos de mediana a baja fertilidad.Teniendo en cuenta lo anterior se adelantó el estudio sobre el manejo agronómico y potencial forrajero del pasto palmera (Setaria poiretiana) bajo tres ambientes diferentes de sombra. La evaluación se desarrolló bajo el diseño en bloques completos al azar con 3 tratamientos y 4 repeticiones. Los tratamientos en diferentes porcentajes de sombríoartificial utilizando polisombra (libre exposición, semisombra y sombra con 0,44 y 70% de sombrío)y las repeticiones (bloques) fueron las condiciones de sombra dadas por el sombrío del bosque en torno al proyecto. El tratamiento que mejor comportamiento agronómico presentó en cuanto a producción de materia seca fue el T1 (libre exposición); no se encontraron diferencias estadísticas para las variables vigor, cobertura, altura, porcentaje de materia secaThe research was conducted at the Los Naranjos farm located in the Vereda La sale in the municipality of Cajibío of the Cauca Department. The shade of the trees do not allow the progress of the forage grown in your environment and are not known the shade-tolerant species that adapt to climate conditions medium and medium to low fertility soils.Was therefore undertaken a study on agronomic management and forage potential of palm grass (Setariapoiretiana) under three distinct shadow. The evaluation was conducted under the design in randomized complete block with 3 treatments and 4 replications. Treatments consisted of different percentages of shadow artificial using polisombra(free exposure, partial shade and shadow with 0,44 and 70% dark) mesh and repetitions (blocks) were the conditions given by the shadow of the forest around the project. The treatment that showed better agronomic performance in terms of dry matter production was T1 (free exhibition); no statistical differences were found for variables vigor, coverage, height, dry matter content; did not show damage by pests and diseases.Departamento Administrativo de Ciencia, Tecnología e Innovación [CO] Colciencias1103-586-35747Aplicación de tecnologías para la transformación de sistemas ganaderos de carne en el departamento del Caucan

Diseño de un sistema integrado de producción agropecuaria en el municipio de Popayán (Cauca)

Se diseñó un sistema integrado de producción agropecuaria desde los principios de la agroecología en la granja la Colina ubicada en la Vereda Cajete, Municipio de Popayán, como contribución al proceso de certificación del programa agroambiental de la Universidad Autónoma Intercultural Indígena (UAIIN). Este proceso se llevó a cabo mediante levantamiento topográfico, análisis físico-químico de suelos, químico y microbiológico de aguas, evaluación de sustentabilidad mediante indicadores del sistema productivo actual y propuesta de ruta de transición, proyectando el sistema hacia la sustentabilidad, y contribuyendo en los procesos de capacitación a las comunidades que integran la UAIIN en la conservación de los recursos y recuperación de especies propias

Development of a panel of genome-wide ancestry informative markers to study admixture throughout the Americas.

Most individuals throughout the Americas are admixed descendants of Native American, European, and African ancestors. Complex historical factors have resulted in varying proportions of ancestral contributions between individuals within and among ethnic groups. We developed a panel of 446 ancestry informative markers (AIMs) optimized to estimate ancestral proportions in individuals and populations throughout Latin America. We used genome-wide data from 953 individuals from diverse African, European, and Native American populations to select AIMs optimized for each of the three main continental populations that form the basis of modern Latin American populations. We selected markers on the basis of locus-specific branch length to be informative, well distributed throughout the genome, capable of being genotyped on widely available commercial platforms, and applicable throughout the Americas by minimizing within-continent heterogeneity. We then validated the panel in samples from four admixed populations by comparing ancestry estimates based on the AIMs panel to estimates based on genome-wide association study (GWAS) data. The panel provided balanced discriminatory power among the three ancestral populations and accurate estimates of individual ancestry proportions (R² > 0.9 for ancestral components with significant between-subject variance). Finally, we genotyped samples from 18 populations from Latin America using the AIMs panel and estimated variability in ancestry within and between these populations. This panel and its reference genotype information will be useful resources to explore population history of admixture in Latin America and to correct for the potential effects of population stratification in admixed samples in the region

Development of a panel of genome-wide ancestry informative markers to study admixture throughout the Americas

Most individuals throughout the Americas are admixed descendants of Native American, European, and African ancestors. Complex historical factors have resulted in varying proportions of ancestral contributions between individuals within and among ethnic groups. We developed a panel of 446 ancestry informative markers (AIMs) optimized to estimate ancestral proportions in individuals and populations throughout Latin America. We used genome-wide data from 953 individuals from diverse African, European, and Native American populations to select AIMs optimized for each of the three main continental populations that form the basis of modern Latin American populations. We selected markers on the basis of locus-specific branch length to be informative, well distributed throughout the genome, capable of being genotyped on widely available commercial platforms, and applicable throughout the Americas by minimizing within-continent heterogeneity. We then validated the panel in samples from four admixed populations by comparing ancestry estimates based on the AIMs panel to estimates based on genome-wide association study (GWAS) data. The panel provided balanced discriminatory power among the three ancestral populations and accurate estimates of individual ancestry proportions (R2>0.9 for ancestral components with significant between-subject variance). Finally, we genotyped samples from 18 populations from Latin America using the AIMs panel and estimated variability in ancestry within and between these populations. This panel and its reference genotype information will be useful resources to explore population history of admixture in Latin America and to correct for the potential effects of population stratification in admixed samples in the region

Time since admixture for Mestizo and African descendent populations.

<p>Time since admixture for Mestizo and African descendent populations.</p

Validation of the AIMs panel compared to ancestry estimates using GWAS data.

<p>Validation of the AIMs panel compared to ancestry estimates using GWAS data.</p

Performance of nested subsets of AIMs.

<p>Performance of nested subsets of AIMs.</p