backcross

All mice used in these experiments were either first or second backcross.

To make sure each line has different resistant genes, each donor parent is used in a separate backcross program.

A backcross produced a mixed result.

Typically selection for either phenotype or genotype is performed prior to each backcross generation.

For a normally distributed phenotype, 75 parameter combinations for the backcross were examined.

This is known as a "backcross" Labradoodle and improves the coat qualities of the breed.

In the next stage, Rothenbuhler did a 'backcross' of the hybrids with the hygienic parental strain.

The problem is particularly acute if the trait of interest is recessive, as it will be present only in a heterozygous condition after each backcross.

In this method, in a backcross, one may calculate a t-statistic to compare the averages of the two marker genotype groups.

The transgenic mice were maintained on C3HeBFe background with 39-40 generations of backcross.

The Oct-11a and Oct-11b loci were mapped by interspecific backcross analysis.

This is a backcross between D. x hybridus and D. speciosus.

The backcross used a single English Pointer; subsequent breedings have all been to purebred Dalmatians.

The traditional experimental crosses are based on single experimental cross, such as the backcross, F2 or full-sib family, initiated with two different lines.

In 1953, Borlaug extended this technique by suggesting that several purelines with different resistance genes should be developed through backcross methods using one recurrent parent.

The placement of these loci relative to other chromosome 1 markers and a comparison of the interspecific backcross map has been reported previously (39).

In marker assisted backcross conversion, a recipient parent is crossed with a donor line and the hybrid (F1) backcrossed to the recipient.

In rye he started a systematic search for cytoplasmic male sterility in backcross generations of crosses between European and exotic rye accessions.

Chen et al. (1994) used marker assisted backcross conversion with doubled haploidy of BC1 individuals to select stripe rust resistant lines in barley.

These genes were mapped, using an interspecific backcross, to mouse chromosome 9 (Oct-11a ) and mouse chromosome 1 (Oct-11b ).

This led to the foundation of the Dalmatian-Pointer Backcross Project, which aims to reintroduce the normal uricase gene into the Dalmatian breed.

In June of the same year, DCA members were presented with an opportunity to vote on whether to reopen discussion of the Dalmatian Backcross Project.

Backcross is crossing F1 with its parents to transfer a limited number of loci (e.g. transgene, disease resistance loci, etc.) from one genetic background to another.

To extend previous recombinant-inbred strain analyses demonstrating linkage of D15S12h (formerly designated D7Nic1 ) to the mouse p locus, we performed an interspecific backcross analysis.

This interspecific backcross mapping panel has been typed for over 700 loci that are well distributed among all the autosomes as well as the X chromosome (35).

It can also backcross with its parental species.

This specific strain is not suitable for many experiments (e.g., behavioural), so it is very common to backcross the offspring to other strains.

The species has also been known to hybridise with the closely related species Acanthopagrus australis forming viable offspring, themselves able to backcross with the parent species.

After some experimentation in the late 1970s, stocking in the Great Lakes and, especially, in Georgian Bay, was converted entirely to the so-called lake trout backcross in the early 1980s.

On the other hand, if hybrids are vigorous but cannot backcross with parent populations, the result is hybrid speciation, which, aside from the contribution of new hybrids, evolves independently of its parent types.