Title:	Assessing genotype adaptability and stability in perennial forage breeding trials using random regression models for longitudinal dry matter yield data.
Authors:	FERNANDES FILHO, C. C. BARRIOS, S. C. L. SANTOS, M. F. NUNES, J. A. R. VALLE, C. B. do JANK, L. RIOS, E. F.
Affiliation:	CLAUDIO CARLOS FERNANDES FILHO, CENTRO DE TECNOLOGIA DA CANA-DE-AÇÚCAR SANZIO CARVALHO LIMA BARRIOS, CNPGC MATEUS FIGUEIREDO SANTOS, CNPGC JOSE AIRTON RODRIGUES NUNES, UNIVERSIDADE FEDERAL DE LAVRAS CACILDA BORGES DO VALLE, CNPGC LIANA JANK, CNPGC ESTEBAN FERNANDO RIOS, UNIVERSIDADE DA FLORIDA.
Date Issued:	2025
Citation:	G3: Genes, Genomes, Genetics, v. 15, n. 3, jkae306, 2025.
Pages:	p. 1-15
Description:	Genotype selection for dry matter yield (DMY) in perennial forage species is based on repeated measurements over time, referred to as longitudinal data. These datasets capture temporal trends and variability, which are critical for identifying genotypes with desirable performance across seasons. In this study, we have presented a random regression model (RRM) approach for selecting genotypes based on longitudinal DMY data generated from 10 breeding trials and three perennial species, alfalfa (Medicago sativa L.), guineagrass (Megathyrsus maximus), and brachiaria (Urochloa spp.). We also proposed the estimation of adaptability based on the area under the curve and stability based on the curve coefficient of variation. Our results showed that RRM always approximated the (co)variance structure into an autoregressive pattern. Furthermore, RRM can offer useful information about longitudinal data in forage breeding trials, where the breeder can select genotypes based on their seasonality by interpreting reaction norms. Therefore, we recommend using RRM for longitudinal traits in breeding trials for perennial species.
Thesagro:	Matéria Seca Medicago Sativa
NAL Thesaurus:	Forage grasses Genotype Megathyrsus maximus Regression analysis Urochloa
ISSN:	2160-1836
DOI:	https://doi.org/10.1093/g3journal/jkae306
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPGC)