|
|
|
|
|
| TONUSSI, R. L.; SILVA, R. M. de O.; MAGALHAES, A. F. B.; ESPIGOLAN, R.; PERIPOLLI, E.; OLIVIERI, B. F.; FEITOSA, F. L. B.; LEMOS, M. V. A.; BERTON, M. P.; CHIAIA, H. L. J.; PEREIRA, A. S. C.; LOBO, R. B.; BEZERRA, L. A. F.; MAGNABOSCO, C. de U.; LOURENÇO, D. A. L.; AGUILAR, I.; BALDI REY, F. S.. |
| The objective of this study was to investigate the application of BLUP and single step genomic BLUP (ssGBLUP) models in different scenarios of paternity uncertainty with different strategies of scaling the G matrix to match the A22 matrix, using simulated data for beef cattle. Genotypes, pedigree, and phenotypes for age at first calving (AFC) and weight at 550 days (W550) were simulated using heritabilities based on real data (0.12 for AFC and 0.34 for W550). Paternity uncertainty scenarios using 0, 25, 50, 75, and 100% of multiple sires (MS) were studied. The simulated genome had a total length of 2,333 cM, containing 735,293 biallelic markers and 7,000 QTLs randomly distributed over the 29 BTA. It was assumed that QTLs explained 100% of the genetic... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Best Linear Unbiased Prediction; Seleção Fenótipa; Citogenética Animal; Hereditariedade; Gado de Corte. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1083177 |
| |
|
|
| PERIPOLLI, E.; METZGER, J.; LEMOS, M. V. A. de; STAFUZZA, N. B.; KLUSKA, S.; OLIVIERI, B. F.; FEITOSA, F. L. B.; BERTON, M. P.; LOPES, F. B.; MUNARI, D. P.; LOBO, R. B.; MAGNABOSCO, C. de U.; DI CROCE, F.; OSTERSTOCK, J.; DENISE, S.; PEREIRA, A. S. C.; BALDI, F.. |
| Abstract Background The aim of this study was to assess genome-wide autozygosity in a Nellore cattle population and to characterize ROH patterns and autozygosity islands that may have occurred due to selection within its lineages. It attempts also to compare estimates of inbreeding calculated from ROH (FROH), genomic relationship matrix (FGRM), and pedigree-based coefficient (FPED). Results The average number of ROH per animal was 55.15 ± 13.01 with an average size of 3.24 Mb. The Nellore genome is composed mostly by a high number of shorter segments accounting for 78% of all ROH, although the proportion of the genome covered by them was relatively small. The genome autozygosity proportion indicates moderate to high inbreeding levels... |
| Tipo: Artigo em periódico indexado (ALICE) |
Palavras-chave: Padroes ROH; Endogamia; Gado Nelore; Genoma; Genética Animal; Homozygosity. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1101339 |
| |
|
|
|
