Data/hora: 06/06/2024 15:35:13

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 03/04/2000
Data da última atualização: | 03/04/2000
Autoria: | MONFORTE, A. J.; TANKSLEY, S. D.
Afiliação: | Department of Plant Breeding and Biometry, Emerson Hall, Cornell University, Ithaca, USA.
Título: | Fine mapping of a quantitative trait locus (QTL) from lycopersicon hirsutum chromosome 1 affecting fruit characteristics and agronomic traits: breaking linkage among QTLs afecting different traits and dissection of heterosis for yield.
Ano de publicação: | 2000
Fonte/Imprenta: | Theor Appl Genet, v.100, p.471-479, 2000.
Idioma: | Inglês
Conteúdo: | The near-isogenic Line TA523, containing a 40-cM introgression at the bottom of chromossome 1 from Lycopersion hirsutum acc. LA1777, affects several agronomically important traits. A set of recombinate lines (subNILs) derived from the original NIL TA523 were developed in order to fine-map, by substitution mapping, the genetic factors included within the original introgression. In the currente experiment, TA523 showed redder, rounded, less pigmented shoulder, lower-weight ed fruit and higher brix, whereas higher yield and brix*yield was observed only in the hybrid TA253 X TA209 suggesting heterosis for these traits. By substitution mapping we mapping we mapped independent genetic loci affecting brix, yield and fruit shape, whereas fruit weight, shoulder pigmentation and external color mapped to a position coincident with the brix locus.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (17771-1) - ADD - SP - -- - S11823 -  - S11823 - DIS