Introduction Sweetpotato is a vegetatively propagated, highly heterozygous and outcrossing crop. Genetic improvement of sweetpotato complicated because the hexaploid nature The objective this study was to assess genetic compatibility between accessions collected from Niger Nigeria select best parents for next hybridisation block develop new farmer varieties. Materials Methods experiment conduct...

the current study investigated the effect of short-term selection for four week body weight (bw) on performance of divergent lines of japanese quail and their crosses. the mean of bw at hatching time, one, two, three and four week oldand bw at sexual maturity time, age at sexual maturity, number of eggs (from 50 to 100 days old), mean of egg weight, percentage of fertility and hatchability in e...

OR most chromosomes, segregation a t meiosis depends upon an association F or conjunction of homologs a t metaphase of the first meiotic division. Generally the required state of metaphase conjunction is itself dependent upon an antecedent association or synapsis of homologous chromosomes during the inception of meiotic prophase. Following the onset of synapsis, homologous chromosomes may under...