PGC-INIA
https://https://pgc-snia.inia.gob.pe:8443/jspui
El sistema de repositorio digital DSpace captura, almacena, indexa, preserva y distribuye material de investigación digital.2024-03-28T23:45:44ZGenetic diversity and structure of creole cattle (Bos taurus) from southern Peruvian Highlands
https://pgc-snia.inia.gob.pe:8443/jspui/handle/20.500.12955/2441
Título: Genetic diversity and structure of creole cattle (Bos taurus) from southern Peruvian Highlands
Autores: Figueroa Venegas, Deyanira Antonella; Saldaña, Carla L.; Corredor Arizapana, Flor Anita; Heredia Vilchez, Lizeth Amparo; Mamani Cato, Rubén Herberht; Gutierrez, Gustavo; Gomez Quispe, Oscar; Ciprian, Aldo; Murga Valderrama, Luis N.; Arbizu, Carlos I.
Resumen: The creole cattle was originated after the introduction of cattle into America 5 centuries ago. Currently, the production traits of Peruvian creole cattle is scarcely known. An important characteristic of the creole cattle is its adaptability to different extreme environments. However, to date, molecular studies in Peruvian creole cattle are still scarce.
Currently, due to the advances in molecular genetics, a new generation of molecular markers has been developed for the genetic characterization of livestock. Single nucleotide polymorphisms (SNP) have become a very popular tool for the genetic study of livestock populations. Genome-wide SNP chips were developed for multi-breed genetic studies in cattle.2024-01-17T00:00:00ZFirst draft genome assembly of the Peruvian creole cattle breed (Bos taurus) and its comparative genomics among the Bovinae subfamily
https://pgc-snia.inia.gob.pe:8443/jspui/handle/pubitem/2514
Título: First draft genome assembly of the Peruvian creole cattle breed (Bos taurus) and its comparative genomics among the Bovinae subfamily
Autores: Estrada Cañari, Richard; Corredor Arizapana, Flor Anita; Figueroa Venegas, Deyanira Antonella; Salazar Coronel, Wilian; Quilcate Pairazamán, Carlos Enrique; Vásquez Pérez, Héctor Vladimir; Maicelo Quintana, Jorge Luis; Gonzales, Jhony; Arbizu Berrocal, Carlos Irvin
Resumen: The Peruvian creole cattle (PCC) is a neglected breed, and is an essential livestock resource in the Andean region of Peru. To develop a modern breeding program and conservation strategies for the PCC, a better understanding of the genetics of this breed is needed. We sequenced the whole genome of the PCC using a paired-end 150 strategy on the Illumina HiSeq 2500 platform, obtaining 320 GB of sequencing data. The obtained genome size of the PCC was 2.77 Gb with a contig N50 of 108Mb and 92.59% complete BUSCOs. Also, we identified 40.22% of repetitive DNA of the genome assembly, of which retroelements occupy 32.39% of the total genome. A total of 19,803 protein-coding genes were annotated in the PCC genome. We downloaded proteomes and genomes of the Bovinae subfamily, and conducted a comparative analysis with our draft genome. Phylogenomic analysis showed that PCC is related to Bos indicus. Also, we identified 7,746 family genes shared among the Bovinae subfamily. This first PCC genome is expected to contribute to a better understanding of its genetics to adapt to the tough conditions of the Andean ecosystem, and evolution.2022-08-18T00:00:00ZYield predictions of four hybrids of maize (Zea mays) using multispectral images obtained from UAV in the Coast of Peru
https://pgc-snia.inia.gob.pe:8443/jspui/handle/pubitem/2512
Título: Yield predictions of four hybrids of maize (Zea mays) using multispectral images obtained from UAV in the Coast of Peru
Autores: Saravia Navarro, David; Salazar Coronel, Wilian; Valqui Valqui, Lamberto; Quille Mamani, Javier Alvaro; Porras Jorge, Zenaida Rossana; Corredor Arizapana, Flor Anita; Barboza Castillo, Elgar; Vásquez Pérez, Héctor Vladimir; Casas Diaz, Andrés V.; Arbizu Berrocal, Carlos Irvin
Resumen: Early assessment of crop development is a key aspect of precision agriculture. Shortening the time of response before a deficit of irrigation, nutrients and damage by diseases is one of the usual concerns in agriculture. Early prediction of crop yields can increase profitability for the farmer’s economy. In this study, we aimed to predict the yield of four maize commercial hybrids (Dekalb7508, Advanta9313, MH_INIA619 and Exp_05PMLM) using vegetation indices (VIs). A total of 10 VIs (NDVI, GNDVI, GCI, RVI, NDRE, CIRE, CVI, MCARI, SAVI, and CCCI) were considered for evaluating crop yield and plant cover at 31, 39, 42, 46 and 51 days after sowing (DAS). A multivariate analysis was applied using principal component analysis (PCA), linear regression, and r-Pearson correlation. Highly significant correlations were found between plant cover with VIs at 46 (GNDVI, GCI, RVI, NDRE, CIRE and CCCI) and 51 DAS (GNDVI, GCI, NDRE, CIRE, CVI, MCARI and CCCI). The PCA showed clear discrimination of the dates evaluated with VIs at 31, 39 and 51 DAS. The inclusion of the CIRE and NDRE in the prediction model contributed to estimating the performance, showing greater precision at 51 DAS. The use of unmanned aerial vehicles (UAVs) to monitor crops allows us to optimize resources and helps in making timely decisions in agriculture in Peru.2022-10-26T00:00:00ZEvaluación de siete variedades de alfalfa para el mejoramiento alimenticio de la ganadería en Ceja de Selva, Amazonas
https://pgc-snia.inia.gob.pe:8443/jspui/handle/pubitem/2511
Título: Evaluación de siete variedades de alfalfa para el mejoramiento alimenticio de la ganadería en Ceja de Selva, Amazonas
Autores: Vásquez Pérez, Héctor Vladimir; Carrasco Chilón, William Leoncio
Resumen: El objetivo fue evaluar siete variedades de alfalfa: Beacon, WL-625 HQ, WL-440, WL-330, WL-450, WL-350 y Rebound para el mejoramiento alimenticio de la ganadería en el distrito la Florida, Amazonas. Se instalaron parcelas de 6,5 m2 por cada tratamiento bajo un Diseño en Bloques Completamente Randomizado con submuestreo; la evaluación fue durante diez cortes. Se evaluaron variables como altura de planta (AP), Materia Seca (MS), Diámetro Basal (DB), Forraje Verde (FV) y relación hoja /tallo. Se realizó un análisis de varianza y prueba de comparaciones múltiples de Duncan para ver las diferencias significativas entre tratamientos; además, se calculó el coeficiente de correlación que permitió medir el grado de asociación de las variables AP, FV con DB y FV con MS, haciendo uso del software Statistical Analysis System Versión 8. Los resultados encontrados muestran que la mayor altura fue para la variedad WL-625 HQ (53,43 ± 6 cm), mayor producción de FV para la variedad Beacon con 220 t /ha/año y la variedad con mayor rendimiento de MS fue WL- 440 con 56 t de MS /ha/año. El diámetro basal fue diferente entre variedades. La variedad WL-450 mostró la mayor relación hoja/tallo (1,54 cm) con 58% de hojas y 42% de tallos. La mayor correlación para altura de planta se presentó en las variedades WL-625 HQ y Beacon para todos los periodos fenológicos. En conclusión, las variedades que representan una alternativa para el mejoramiento alimenticio de la ganadería en Ceja de Selva son Beacon y WL-625 HQ.2020-11-13T00:00:00Z