Data/hora: 23/06/2024 01:00:15

Biblioteca(s): | Embrapa Algodão.
Data corrente: | 26/12/2017
Data da última atualização: | 26/12/2017
Autoria: | CARVALHO, L. P. de; FARIAS, F. J. C.; RODRIGUES, J. I. S.; SUASSUNA, N. D.; TEODORO.
Afiliação: | LUIZ PAULO DE CARVALHO, CNPA; FRANCISCO JOSE CORREIA FARIAS, CNPA; J. I. S. RODRIGUES, CNPA; NELSON DIAS SUASSUNA, CNPA; P. E. TEODORO, UFV.
Título: | Genetic diversity among exotic cotton accessions as for qualitative and quantitative traits.
Ano de publicação: | 2017
Fonte/Imprenta: | Genetics and Molecular Research, v. 16, n. 1, gmr16019590, 2017.
DOI: | 10.4238/gmr16019590
Idioma: | Inglês
Conteúdo: | Studying genetic diversity among a group of genotypes is important in genetic breeding because identifying hybrid combinations of greater heterotic effect also increases the chance of obtaining plants with favorable allele combinations in an intra-population selection program. The objective of this study was to compare different types of long and extra-long staple cotton and their genetic diversity in relation to the fiber traits and some agronomic traits in order to grant breeding programs. Diversity analysis among 29 cotton accessions based on qualitative and quantitative traits and joint including qualitative and quantitative traits was performed. Analysis based on qualitative and quantitative traits and joint met the accessions in three, two, and three groups, respectively. The cross between genotypes Giza 59 and Pima unknown was the most promising to generate segregating populations, comprising simultaneously resistance (based on molecular markers) to blue disease and bacterial blight, partial resistance to root-knot nematode, smaller size, in addition to good fiber characteristics. These populations can be used in recurrent selection programs as donors of alleles for development of long-staple cotton genotypes.
Palavras-Chave: | Genotypes; Molecular markers.
Thesagro: | Algodão; Genótipo; Marcador molecular.
Thesaurus Nal: | Agronomic traits; Cotton; Fiber quality.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/169804/1/Genetic-diversity-cotton-traits.pdf
Registro original: | Embrapa Algodão (CNPA)
Exemplares: | CNPA - (28447-1) - UPC - AP - DD -  -  -  - DIS