Introducción general. ¿De qué hablamos cuando decimos agroecología y trayectorias agroecológicas?. José María Paruelo, Roberto Zoppolo y Georgina Paula García-Inza. -- Primera sección. Transitando hacia la protección agroecológica de los cultivos. Editora:Carolina Leoni. -- Introducción. Transitando hacia la protección agroecológica de los cultivos. Carolina Leoni. -- Capítulo 1. Hacia un manejo agroecológico de las chinches en soja. María Stella Zerbino y Carolina Leoni. -- Capítulo 2. Manejo de plagas en frutales de hoja caduca:hacia un norte agroecológico.

This study aimed to validate the use of two SNP markers associated to a sdw1 allele identified previously in a short barley genotype (ND23049) with an adequate peduncle extrusion which reduces predisposition to fungal disease development. First, the GBS SNP were converted in a KASP marker but only one of them, named TP4712, correctly amplified all allelic variations and had a Mendelian segregation in a F2 population. To corroborate the association between TP4712 allele with plant height and peduncle extrusion, a total of 1221 genotypes were genotyped and evaluated for both traits.

Selection for feed efficiency is the goal for many genetic breeding programs in beef cattle. Residual feed intake has been included in genetic evaluations to reduce feed intake without compromising performance traits as liveweight, body gain or carcass traits. However, measuring feed intake is expensive, and only a small percentage of selection candidates are phenotyped. Genomic selection has become a very important tool to achieve effective genetic progress in these traits.

Correction: Genetics Selection Evolution (2022) 54(1):66 - https://doi.org/10.1186/s12711-022-00752-4

Correction:Genetics Selection Evolution (2022) 54(1):66 - https://doi.org/10.1186/s12711-022-00752-4

This study reports genetic parameters for yearling and adult wool and growth traits, and ewe reproductive performance. Data were sourced from an Uruguayan Merino flock involved in a long-term selection program focused on reduced fiber diameter (FD), and increased clean fleece weight (CFW) and live weight (LW). Pedigree and performance data from approximately 5,700 mixed-sex yearling lambs and 2,000 mixed-age ewes born between 1999 and 2019 were analyzed.

Breeding programs generate vast amount of data which are often scattered in separate files. This hinders the application of modern breeding tools such as multi-environment analyses and genomic selection. This research work describes the process of consolidating 23 years of phenotypic, pedigree, and genomic records from the Uruguayan national rice (Oryza sativa L.) breeding program, and the features and structure of the resulting database.