backcross


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backcross

[′bak‚krȯs]
(genetics)
A cross between an F1 heterozygote and an individual of P1 genotype.
References in periodicals archive ?
The universal feminization observed in mature F 1 hybrids or F2 backcross hybrids made it more convenient for us to obtain pure eggs of hybrids using the same spawning methods described earlier.
At the same time that the ISCL is generated, and in subsequent backcross generations, additional recombinants are sought in order to further narrow the interval of interest.
1] litters and perhaps up to 6 backcross (B-FP) litters were undetected.
gene heredity mutation mitosis embryo allele helix clone sequence polymer autosome phenotype recessive metaphase locus polymerase telophase oligonucleotide geneticist interphase prophase phage bacteriophage chromomere transduction transformation nucleus Mendelian genome meiosis chromosome recombinant pedigree plasmid vector replicon nucleosome chromatography zygote centromere anaphase genotype endonuclease backcross exonuclease polyploidy diakinesis cytogenetics crossover segregate codominance dominance translocation nucleolus
Comparison of three-breed and backcross swine for litter productivity and postweaning performance.
For example, a backcross between a female hybrid and a male Nashville Warbler would produce offspring with the genetic pattern we observe in NYSM 10984.
Erwinia resistance in backcross progenies of Solanum tuberosum*S.
One of the most likely reasons could be due to a result of the continued selections on Cry1F corn leaf tissue both before and after the backcross.
Improved tissue culture response of an elite maize inbred through backcross breeding, and identification of chromosomal regions important for regeneration by RFLP analysis.
One common approach is to first identify resistant germplasm and generate highly resistant lines, then backcross the resistance into elite cultivars.