Little data is available on microsatellite dynamics in the duplicated regions of the rice genome, even though efforts have been made in the past to align genome sequences of its two sub-species. Based on the coordinates of duplicated sequences in the indica genome as available in the public domain, we identified microsatellites in these regions. CCG and GAAAA repeats occurred most frequently. I...

Genomic selection (GS) integrates DNA marker and trait data to develop a model that enables prediction of performance (genomic-estimated breeding values; GEBVs) based on genotype alone. GS has been shown improve the efficiency effectiveness programmes, especially for complex traits such dry matter yield (DMY). DMY were generated from training population 200 white clover half-sibling (HS) famili...

Genomic selection enables animal breeders to select animals of greater genetic merit with higher accuracy and at a younger age as compared to traditional breeding strategies, therefore achieving increased selection precision and decreased generation intervals. By combining genomic selection with assisted reproductive technologies (ART), it is possible to further reduce the generation interval b...

We examine how genomic imprinting may have evolved at an X-linked locus, using six diallelic models of selection in which one allele is imprintable and the other is not. Selection pressures are generated by genetic conflict between mothers and their offspring. The various models describe cases of maternal and paternal inactivation, in which females may be monogamous or bigamous. When inactivati...

Long-term genomic selection (GS) requires strategies that balance genetic gain with population diversity, to sustain progress for traits under selection, and to keep diversity for future breeding. In a simulation model for a recurrent selection scheme, we provide the first head-to-head comparison of two such existing strategies: genomic optimal contributions selection (GOCS), which limits reali...

...................................................................................................................... v CHAPTER I GENERAL INTRODUCTION ............................................................... 1 CHAPTER II LITERATURE REVIEW ....................................................................... 4 CHAPTER III SELECTION ON OPTIMAL POPULATION VALUE INCREASES GENETIC GAIN REL...

DNA analysis can have great practical application in the management and successful operation of farm. The technology is becoming a tremendous challenge for farm breeding domestic animals. In recent years, traditional selection methods been supplement by results molecular genome. Determining genetic distance sheep goat breeds had multiple significance. Microsatellites are used widely selection, ...

Cellular life can be viewed as one of many physical natural systems that extract free energy from their environments in the most efficient way, according to fundamental physical laws, and grow until limited by inherent physical constraints. Thus, it can be inferred that it is the efficiency of this process that natural selection acts upon. The consequent emphasis on metabolism, rather than repl...

Numerous studies of ecological genetics have found that alleles contributing to local adaptation sometimes cluster together, forming "genomic islands of divergence." Divergence hitchhiking theory posits that these clusters evolve by the preferential establishment of tightly linked locally adapted mutations, because such linkage reduces the rate that recombination breaks up locally favorable com...