backcross


Also found in: Thesaurus, Medical, Encyclopedia.

back·cross

 (băk′krôs′, -krŏs′)
tr.v. back·crossed, back·cross·ing, back·cross·es
To cross (a hybrid) with one of its parents or with an individual genetically identical to one of its parents.
n.
1. The act of making such a cross.
2. An individual resulting from such a cross.

backcross

(ˈbækˌkrɒs)
vb
(Genetics) to mate (a hybrid of the first generation) with one of its parents
n
1. (Genetics) the offspring so produced
2. (Genetics) the act or process of backcrossing

back•cross

(ˈbækˌkrɔs, -ˌkrɒs)

v.t.
1. to cross (a hybrid of the first generation) with either of its parents.
n.
2. an instance of such crossing.
[1900–05]

backcross


Past participle: backcrossed
Gerund: backcrossing

Imperative
backcross
backcross
Present
I backcross
you backcross
he/she/it backcrosses
we backcross
you backcross
they backcross
Preterite
I backcrossed
you backcrossed
he/she/it backcrossed
we backcrossed
you backcrossed
they backcrossed
Present Continuous
I am backcrossing
you are backcrossing
he/she/it is backcrossing
we are backcrossing
you are backcrossing
they are backcrossing
Present Perfect
I have backcrossed
you have backcrossed
he/she/it has backcrossed
we have backcrossed
you have backcrossed
they have backcrossed
Past Continuous
I was backcrossing
you were backcrossing
he/she/it was backcrossing
we were backcrossing
you were backcrossing
they were backcrossing
Past Perfect
I had backcrossed
you had backcrossed
he/she/it had backcrossed
we had backcrossed
you had backcrossed
they had backcrossed
Future
I will backcross
you will backcross
he/she/it will backcross
we will backcross
you will backcross
they will backcross
Future Perfect
I will have backcrossed
you will have backcrossed
he/she/it will have backcrossed
we will have backcrossed
you will have backcrossed
they will have backcrossed
Future Continuous
I will be backcrossing
you will be backcrossing
he/she/it will be backcrossing
we will be backcrossing
you will be backcrossing
they will be backcrossing
Present Perfect Continuous
I have been backcrossing
you have been backcrossing
he/she/it has been backcrossing
we have been backcrossing
you have been backcrossing
they have been backcrossing
Future Perfect Continuous
I will have been backcrossing
you will have been backcrossing
he/she/it will have been backcrossing
we will have been backcrossing
you will have been backcrossing
they will have been backcrossing
Past Perfect Continuous
I had been backcrossing
you had been backcrossing
he/she/it had been backcrossing
we had been backcrossing
you had been backcrossing
they had been backcrossing
Conditional
I would backcross
you would backcross
he/she/it would backcross
we would backcross
you would backcross
they would backcross
Past Conditional
I would have backcrossed
you would have backcrossed
he/she/it would have backcrossed
we would have backcrossed
you would have backcrossed
they would have backcrossed
ThesaurusAntonymsRelated WordsSynonymsLegend:
Verb1.backcross - mate a hybrid of the first generation with one of its parents
crossbreed, hybridise, hybridize, interbreed, cross - breed animals or plants using parents of different races and varieties; "cross a horse and a donkey"; "Mendel tried crossbreeding"; "these species do not interbreed"
References in periodicals archive ?
Cascade, Mills Mess, Backcross and Tramline Pass are all terms used in which activity?
The favorable allele frequency of introgression QTL was shown in Table I, you can see flanking markers selection, introgression QTL frequency showed a downward trend with the increase of backcross generation.
We made a backcross to sorghum, so the progeny are 75-percent sorghum, 25-percent Johnsongrass, he said.
Foreground and background selection were carried out to select the elite plant from each backcross generation.
The following results were obtained: (1) Genomic similarity selection and index selection can make recipient genome recover entirely through 3~4 backcross generations, though MBLUP selection could not make recipient genome recover quickly, it can get the most genetic responses for background traits.
A type of controlled genetic design widely applied in breeding is the use of backcross generations, which are often used to increase the probability of obtaining higher progenies that provide more success in the selection process (LORENCETTI et al.
Most of these studies focused only on the fitness of inter-specific and intraspecific F1 hybrids, whereas the effects of genetic mechanisms are, typically, most pronounced in F2 and backcross hybrids (Lynch 1991).
Schaible, with the approval of the Dalmatian Club of America's board of directors, was granted American Kennel Club (AKC) registration for two dogs from the fourth generation of the backcross.
Over several backcross generations, donor strain DNA is selected for and retained within the region of interest, but is diluted elsewhere in the genome until, in the finished congenic, the donor strain sequence comprises less than 2 percent of the genetic "background.
Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PHEHR through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby.