Data/hora: 18/06/2024 00:43:35

Biblioteca(s): | Embrapa Gado de Corte.
Data corrente: | 20/03/2021
Data da última atualização: | 03/04/2021
Autoria: | MATIAS, F. I.; CANDIDO, A. R.; MACHADO, W. K. R.; AMARAL, P. N. C. do; DIAS, A. M.; VALLE, C. B. do; BARRIOS, S. C. L.; VALERIO, J. R.; TORRES, F. Z. V.; VERZIGNASSI, J. R.; ARRUDA, C. O. C. B. de; GOUVEIA, B. T.; NOBRE, A. A. A.
Afiliação: | FILIPE INÁCIO MATIAS, Universidade de Wisconsin, Madison.; ANDERSON RAMIRES CANDIDO, UEMS; WYVERSON KIM ROCHA MACHADO, UEMS; PEDRO NELSON CESAR DO AMARAL, UEMS; ALEXANDRE MENEZES DIAS, UFMS; CACILDA BORGES DO VALLE; SANZIO CARVALHO LIMA BARRIOS, CNPGC; JOSÉ RAUL VALERIO; FABRICIA ZIMERMANN VILELA TORRES, CNPGC; JAQUELINE ROSEMEIRE VERZIGNASSI, CNPGC; CASSIA OLIVEIRA CAMARGO BARROS DE ARRUDA, UCDB; BEATRIZ TOMÉ GOUVEIA, UFLA; ALANA APARECIDA AMARILHA NOBRE, UFMS.
Título: | Urochloa spp. multivariate performance: Similarities and divergences among intra- and interspecific populations.
Ano de publicação: | 2020
Fonte/Imprenta: | Crop Breeding e Genetics, p. 1-13, 2020.
Idioma: | Inglês
Conteúdo: | Multivariate analysis is a tool that breeders can use to compare populations and select genotypes for specific purposes. This study used principal component analysis to compare three intraspecific and three interspecific populations of Urochloa spp. based on insect resistance, agronomic, and seed production characteristics. This multivariate strategy exposed completely different profiles and important differences among these populations despite their close genomic ancestry. In general, interspecific populations had greater variability than intraspecific populations for agronomic traits, seed production, and spittlebug resistance. Consequently, crosses among different species, whenever possible, are a better option to obtain new Urochloa breeding populations. However, the breeding of intraspecific populations is also an excellent option to improve specific traits related to each species, which can then be used to speed the breeding in the interspecific programs. Multivariate analysis demonstrated substantial variability within progenies of the interspecific Urochloa populations that can be used to improve insect resistance and productivity of tropical pastures.
Thesaurus Nal: | Multivariate analysis.
Categoria do assunto: | --
Registro original: | Embrapa Gado de Corte (CNPGC)
Exemplares: | CNPGC - (17660-1) - UPC - AP - DD -  -  -  - DIS