The WEBBIMPBRA system, developed at FMVZ/USP (Pirassununga campus), originated from a FAPESP-funded Young Investigator project (grant number 2016/19514-2). The main goal of the initiative was to build a system and database focused on imputing low-density (LD) genotypes to high-density (HD), with emphasis on animals representative of the Nelore breed.
Submission of LD genotypes (exclusively Nelore animals) must occur at least two days before the imputation run date scheduled by the system administrator. Only researchers affiliated with academic institutions may submit data, provided they are pre-registered and have submitted an official signed document.
Before uploading files, researchers must consult the pre-registered SNP maps to ensure that genotyped markers match exactly the order and coordinates of one of the maps provided by the system. Failure to meet this requirement may prevent imputation.
The project involved direct collaboration among four Brazilian institutions: GMAB/FZEA/USP, UNESP – Jaboticabal, EMBRAPA Gado de Corte – MS, and UFV. These institutions were represented by the following researchers involved in selecting animals for sequencing:
In the genome sequencing stage via short-read technology, in collaboration with the ESALQ/USP Functional Genomics Center, the following researchers participated:
International collaborations:
Special thanks to researchers Wecksley Souza, Dr. Haroldo Neves, Prof. Gerardo Júnior (UVA), and Lucas Andrietta for their valuable technical support, active involvement in selecting animals for sequencing, and essential contributions to the biological sample collection stage. We also extend our gratitude to the producers, genetic improvement groups, and AI centers who generously provided biological material to the project partners. Finally, we acknowledge the tireless work of Mr. Alexandre Ruiz and Kleber Santinni in maintaining and troubleshooting servers and hardware associated with the project.