Renin activity (EC 3.4.99.19) was measured in submaxillary gland extracts from four sets of recombinant inbred mouse strains. Recombination between Rnr, a gene that mediates the susceptibility of submaxillary gland renin to induction by androgen, and Dip-1, a chromosome 1 marker, was found in only 1 of 51 recombinant inbred strains, indicating that the two genes are closely linked on chromosome...

Recombinant inbred populations of many plant species exhibit more heterozygosity than expected under the Mendelian model of segregation. This segregation distortion causes the overestimation of recombination frequencies and consequent genetic map expansion. Here we build upon existing genetic models of differential zygotic viability to model a heterozygote fitness term and calculate expected ge...

A population of Arabidopsis thaliana recombinant inbred lines was constructed and used to develop a high-density genetic linkage map containing 252 random amplified polymorphic DNA markers and 60 previously mapped restriction fragment length polymorphisms. Linkage groups were correlated to the classical genetic map by inclusion of nine phenotypic markers in the mapping cross. We also applied a ...

The generation of special crosses between different inbred lines such as recombinant inbred strains (RIS) and intermated recombinant inbred populations (IRIP) is being used to improve the power of QTL detection techniques, in particular fine mapping. These approaches acknowledge the fact that recombination of linked loci increases with every generation, caused by the accumulation of crossovers ...

Salt stress impedes plant growth and disrupts normal metabolic processes, resulting in decreased biomass increased leaf senescence. Therefore, the ability of a to maintain when exposed salinity is critical for production salt tolerant crops. To identify genetic basis tolerance an agronomically important grain crop, we used recombinant inbred line (RIL) population derived from interspecific cros...

A total of forty-nine recombinant inbred lines were evaluated for 16 traits using simple lattice design. All the measured over locations showed highly significant differences among except fertile tiller per plant, while x location interaction effect was most measured. Grain yield highest phenotypic coefficients variation (PCV) (26.36%) followed by above ground biomass (23.16%), remaining low (&...

Randomized complete block design was used, with three replications. Heterosis for yield and fruit quality characteristics studied, expressed as Relative heterosis, heterobeltiosis Standard heterosis. It would be expected, according to the dominance model, that heterosis recorded after crossing recombinant lines, having only a small portion of recessive deleterious alleles, minimal. The results ...