Partial map of Coffea arabica L. and recovery of the recurrent parent in backcross progenies
Arquivos
Data
2007-06-30
Autores
Oliveira, Antonio Carlos Baião de
Sakiyama, Ney Sussumu
Caixeta, Eveline Teixeira
Zambolim, Eunize Maciel
Rufino, Raphael José Nascif
Zambolim, Laércio
Título da Revista
ISSN da Revista
Título de Volume
Editor
Crop Breeding and Applied Biotechnology
Resumo
A partial map of Coffea arabica L. was constructed based on a backcross population and RAPD markers. From a total of 178 markers evaluated, only 134 that segregated 1:1 (P>0.05) were used to develop the map. Seventeen markers were not linked, while 117 formed 11 linkage groups, covering a genome distance of 803.2 cM. The maximum distance between adjacent markers was 26.9 cM, and only seven intervals exceeded 20 cM. The markers were further used for assisted selection of the plants closest to the recurrent parent, to accelerate the introgression of rust resistance genes in the coffee breeding program. Three BC1 plants resistant to coffee leaf rust and with high genetic similarity to ?Catuaí? were selected and integrated in the following backcross cycles.
Descrição
Palavras-chave
Coffee, Molecular markers, RAPD, Marker assisted selection, Coffee leaf rust
Citação
OLIVEIRA, A. C. B. et al. Partial map of Coffea arabica L. and recovery of the recurrent parent in backcross progenies. Crop Breeding and Applied Biotechnology, Viçosa, v. 7, n. 2, p. 196-203, 30 june, 2007.