2 progenies possess 87.5% of their genome coming from abaca.
Introgressing gressing multiple QTL in backcross
breeding programs of limited size.
QTL analysis: A method for the simultaneous discovery and transfer of valuable QTLs from unadaptedgermplasm into elite breeding lines.
phase, selected individuals of which two markers are both heterozygosity, during intercrossing phase, selected individuals of which two markers are both homozygosity or heterozygosity.
The theoretical expectation was the occurrence of the following groups representing the F1 generation: P2 was clustered with their descendants (RC5b, RC4b, RC3b, RC2b and RC1b); P1 was grouped with their descendants (RC5a, RC4a, RC3a, RC2a and RC1a); and the backcross
generations (RC5, RC4 and RC3) were more similar to the recurring parents than to the RC1 and RC2 generations.
Therefore, to accomplish its mission, the backcross
method utilized by TACF gradually builds the proportion of American to Chinese genes to the point that hybrids have obtained at least 15/16 (~94%) of genetic makeup from a C.
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.
However, if backcrosses
between hybrids and parental stocks do occur in the field, attempts to separate hybrids and their progeny from the parent species would be complicated because hybrid identification using standard morphometric and meristic measurements depends on the occurrence of intermediate traits (Gilbert, 1961).
The offspring and their descendants were backcrossed
to purebred Dalmatians for many generations, resulting in dogs that are indistinguishable from purebred Dalmatians.
Identification of QTLs for early blight (Alternaria solani) resistance in tomato using backcross
populations of a Lycopersicon esculentum x L.
In this study, parental, F1, F2, and backcross
populations were used: 1) to quantify maternal inheritance, degree of dominance, and transgressive segregation; and 2) to determine whether CI 13227 and L-574-1 share any resistance genes.
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