to investigate the genotypic and phenotypic relationship between characteristics affecting tomato fruit weights, eleven tomato lines were compared in a rcb design with three replications. the anova showed that the difference among lines was significant for all characteristics. there was a significant phenotypic and genotypic correlations between fruit weight and most of the characteristics. the...

Body weight (BW) and carcass traits are complex and important economic traits that may benefit from the implementation of MAS. The objective of the current study was to identify QTL associated with BW and carcass traits in an experimental half-sib cross of Japanese quails selected for BW at 4 weeks of age. Body weight and carcass traits were measured in the F2 population. Total F2 individuals a...

Background: A routine phenotypic test has not been recommended for detection of metallo-β-lactamases (MBLs) producing Enterobacteriaceae species such as Escherichia coli. The current study was conducted to compare the 2-Mercaptopropionic acid (2-MPA) phenotypic method and ertapenem non-susceptibility test with polymerase chain reaction in predicting the production of MBLs in clinical isolates o...

Phenotypic evolution can result from new mutation, standing genetic variation, or phenotypic plasticity. Extensive reviews have focused on either comparing phenotypic evolution by new mutations vs. standing genetic variation (Barrett and Schluter, 2008) or the effect of phenotypic plasticity on generating biodiversity (Moczek, 2010; Pfennig et al., 2010; Moczek et al., 2011). This article focus...

the clinical and phenotypic features of two siblings (a 12 years old girl and her 7 year old brother) with cockayne syndrome are described. the main problems were mild to moderate mental retardation, dwarfism, clumsy gait, photosensitive skin lesions and progeroid (senile like) appearance. brain ct - scans revealed symmetrical, well defined areas of calcification mainly located at lenticular nu...

Production of biofilm in Staphylococcus epidermidis is mediated through enzymes produced by the four-gene operon ica and is subject to phenotypic variation. The purpose of these experiments was to investigate the regulation of ica and icaR transcription in phenotypic variants produced by multiple unrelated isolates of S. epidermidis. Ten isolates were chosen for the study, four of which contain...

Heritability (0.08) was evaluated in a model whereas the comparable group used interaction between herd and control day. The influence of as heritability (0.03). herds years testing (0.04 0.05). Phenotypic correlations milk urea concentration milking traits: daily quantity milk, content fat proteins (P <0.0001). Positive low phenotypic correlation (0.15) found yield, amount (0.10). Between c...

BACKGROUND Many single-gene knockouts result in increased phenotypic (e.g., morphological) variability among the mutant's offspring. This has been interpreted as an intrinsic ability of genes to buffer genetic and environmental variation. A phenotypic capacitor is a gene that appears to mask phenotypic variation: when knocked out, the offspring shows more variability than the wild type. Theory ...