Tiger trout are infertile, so there are no successive generations of tiger trout or backcrosses to either of the parent species. ❋ Robert J. Behnke (2002)
A few normal or motile spermatozoa may be found in the semen of backcrosses of the F1 hybrids to either parent, but as a rule the spermatozoa are normal and dead. ❋ Unknown (1983)
Specifically, 500 individuals were simulated for each parental population, as well as for all pairwise combinations of F1 hybrids, F2 hybrids, and B2 and B3 backcrosses. ❋ Michael A. Russello Et Al. (2010)
The triangle plot in Figure 2 depicts a fine-scale examination of the history of mixed ancestry in the nine captive individuals that assigned to Floreana, obtained through q-value distributions of 500 simulated genotypes each of parental, F1 hybrids, F2 hybrids, and B2 and B3 backcrosses for all pairwise comparisons between Puerto Bravo ❋ Unknown (2010)
M. giganteus backcrosses existed within the sample compared with ❋ L E Neaves (2010)
The intercross was followed by 8 backcrosses to WF before intercrossing to establish homozygosity for both the ❋ Steven C. Pino Et Al. (2009)
Lankalis said Dougherty planted 106 trees; six of them were first-generation backcrosses, a term for a hybrid of Chinese and American chestnut trees. ❋ Unknown (2009)
"Increasing Yield of Spring Canola Hybrids through Introgression of Winter Germplasm," involves making several backcrosses to transfer the specific trait of yield from winter to spring germplasm.
"If the lower fitness of the hybrids were simply caused by overall genetic incompatibility, then both backcrosses should use the two tree types equally well," says Funk. ❋ Unknown (2009)
Endosperms were dissected and analyzed by flow cytometry, and their corresponding embryos were rescued by tissue culture and grown to seedlings, as described by Dilkes et al. Seedlings of the backcrosses progeny were lyophilized with a speed vacuum dryer at − 40°C. ❋ Unknown (2008)
An integrated linkage group composed of the 10 maize chromosomes was constructed for the four backcrosses with the 65 SSR markers. ❋ Unknown (2008)
All the offspring from the four backcrosses are measured for a quantitative trait of interest. ❋ Unknown (2008)
The genotypic variance among the two maternal-zygotic combinations within each backcross is calculated by Mean ploidy and the percentage of endoreduplicated nuclei, measured for two pairs of reciprocal backcrosses, initiated with two inbred lines, Sg18 and Mo17, are two physiological parameters that describe the level of endoreduplication in the embryo. ❋ Unknown (2008)
The profile of log-likelihood ratios (LR) between the full (there is a QTL) and reduced (there is no QTL) model for the percentage of endoreduplicated nuclei across an integrated linkage map constructed by the four backcrosses in maize (Coelho et al. 2007). ❋ Unknown (2008)
