Найдено научных статей и публикаций: 1, для научной тематики: quantitative trait loci
1.
Sazanov A.A., Stekol’nikova V.A., Korczak M., Sazanova A.L., Jaszczak K., Zieba G., Malewski T.
- Poultry Science 86:202–205 , 2007
ABSTRACT Expression of 12 positional candidates for
QTL affecting shell thickness at 53 wk of lay age (ST53)
was investigated by real-time PCR in the distal part of
chicken oviducts (uterus) with a forming eggshell. In the
local chicken breed Green-legged Partridgenous, the com-
plete cDNA CR52...
ABSTRACT Expression of 12 positional candidates for
QTL affecting shell thickness at 53 wk of lay age (ST53)
was investigated by real-time PCR in the distal part of
chicken oviducts (uterus) with a forming eggshell. In the
local chicken breed Green-legged Partridgenous, the com-
plete cDNA CR523443 (ChEST985k21) was downregu-
lated with ratio of means 0.49 (P ≤ 0.01) in the group with
low ST53 (248.6 ± 16.62 m) relative to the group with
the highest ST53 (372.4 ± 2.07 m). Expression of this gene was highly correlated (0.85, P ≤ 0.01) with shell
thickness. No significant difference in expression between
the 2 groups with thick (378.4 ± 3.65 m) and thin (227.8 ±
8.99 m) shell and no significant correlation of expression
level with ST53 were detected in Rhode Island Red, which
could be explained by strict selection to egg quality traits,
including optimal shell thickness in this commercial layer
breed. These data suggested that CR523443 was a candi-
date gene for QTL ST53 in the chicken.