Mapping one of the 2 genes controlling lemon ray flower color in sunflower (Helianthus annuus L.).
J Hered
; 99(5): 564-7, 2008.
Article
en En
| MEDLINE
| ID: mdl-18477587
In an F2 population of 120 plants derived from a cross between 2 breeding lines with yellow ray flowers, we observed 111 plants with yellow-colored and 9 plants with lemon-colored ray flowers. The segregation pattern fits a 15:1 (chi2(15:1) = 0.32, P > 0.5) ratio, suggesting that the lemon ray flower color is conditioned by 2 independent recessive genes that had been contributed individually by each of the parents. We sampled 111 plants from the 3 F(2:3) families displaying a 3 to 1 segregating ratio for genotyping with molecular markers. One of the genes, Yf(1), was mapped onto linkage group 11 of the public sunflower map. A targeted region amplified polymorphism marker (B26P17Trap13-68) had a genetic distance of 1.5 cM to Yf(1), and one simple sequence repeat marker (ORS733) and one expressed sequence tag (EST)-based marker (HT167) previously mapped to linkage group 11 were linked to Yf(1) with distances of 9.9 and 2.3 cM, respectively.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Flores
/
Helianthus
Idioma:
En
Revista:
J Hered
Año:
2008
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Estados Unidos