Substantial gains in traits of interest have been made through selection of individuals for breeding based on their phenotypes, or those of their close relatives [ 4].
This superiority is partly due to the presence of 61 sires, which were selected for breeding based on their own performance.
For this latter purpose, rats deriving from an F2 intercross between LEW and SHR strains were selected for breeding based on their genotype at polymorphic markers flanking the two QTLs.
In a previous study, we constructed a cDNA library from flower buds and obtained 2,241 ESTs, from which 167 SSRs were derived and a dataset of 185 putative SNPs obtained for breeding based on their high availability and stability [ 15].
To further strengthen the field application of the genome science data of rice obtained so far, we need to develop more powerful genomics-assisted methods for rice breeding based on information derived from various quantitative trait loci (QTL) and related analyses.
In index-based breeding, based on breeding values, the specific combination of dogs used for breeding will be more important than the status of the dog itself.
We thank all organizations that provided samples, including the Chengdu Breeding Research Base for the Giant Panda, the China Research and Conservation Center for the Giant Panda, Beijing Nanhaizi Milu Park and Dafeng Milu National Nature Reserve.
An illumination system for indoor breeding based on UV, blue and green LEDs was designed and its efficiency was compared with illumination by fluorescent tubes which have been successfully used to sustain a BSF colony for five years.
Next, we selected a plate from which yeasts were recuperated for further breeding, based on the following criteria: 1) an ethanol percentage as high as possible, 2) substantial growth on the plate (>150 CFUs), and 3) variation in colony size within the plate, indicating enrichment for the best-performing hybrids (see also Additional file 1: Supplemental Text).
The scores of the parameters used for selection of future breeders and the main causes for culling rams are summarised in Table 4.> -wrap-foot> standarddard error of the mean In the present study, we show the results of the first phase of a programme for the evaluation of the potential fertility of rams in commercial flocks for natural breeding based on the clinical examination of the rams.
