Sentences with phrase «by backcrossing»

Odds are that some creative individual either introduced the gene and then fixed breed type by backcrossing or here was an «oops» that someone decided to capitalize on.

This permits movement of genes involved in phenotypic differences between the species by backcrossing [13]--[15].

Not exact matches

We can not rule out the influence of other SNPs fixed in the mutant populations on seemingly unrelated phenotypes, such as the elongated panicle phenotype displayed by bsl1 - 2 (Figure 1B), since several rounds of backcrossing were not performed.

(8) Imputation of these results specifically to the animals» age - related, low - BubR1 - driven rise in p16Ink4a - expressing senescent cells was, however, limited: limited by the very nature of so - called «accelerated aging» models such as BubR1H / H, (9) and limited by the lifelong, global absence of p16Ink4a expression in the backcrossed mice.

DJ - 1 knockout mice were generated and originally characterized by Chandran and colleagues (2008) and given to us after having been backcrossed at least two generations into C57BL / 6J.

Male wing size increases by 45 % through cell size and cell number changes when the ws1 allele from N. giraulti is backcrossed into a N. vitripennis genetic background.

In this study, we focused on two geographically distinct ivermectin resistant strains of H. contortus and two lines generated by multiple rounds of backcrossing between susceptible and resistant parents, with ivermectin selection.

Eventually it would be possible to mate two animals that are both heterozygous for the desired allele and produce homozygous progeny, with very little change in genetic composition (B) After five generations of backcrossing to the desired breed, the proportion of the genotype contributed by this breed is 96.9 %, while by ten generations it is 99.9 %.