backcross การใช้

• Mendel tested his hypothesis with a type of backcross called a testcross.
• It can also backcross with its parental species.
• Similarly, a F2 animal bred to an F1 animal creates a F2b backcross.
• Due to legislation restricting or preventing backcross to Boxers, introducing the gene into his lines.
• Overall, viability is reduced in these hybrids and they rarely backcross with their parent species.
• It also found that the sweet orange originated from a backcross hybrid between pummelo and mandarin orange.
• An F1 female can mate with a male Bactrian camel : the result is a B1 backcross Bactrian.
• To make sure each line has different resistant genes, each donor parent is used in a separate backcross program.
• This habitat is unfavorable to most other plants, but its allotetraploid descendants and their backcross hybrids may occur alongside it.
• TACF was founded in 1983 by a group of prominent Meadowview, in southwestern Virginia, to execute the backcross breeding program.
• An example would be in Ontario, where both F1 splake and the lake trout backcross have been planted for several years.
• In backcross conversion, genes are introgressed from a donor cultivar or related species into a recipient elite line through repeated backcrossing.
• The graphs at right illustrate Backcross inbreeding over twenty backcrosses for three different levels of ( fixed ) inbreeding in the Recurrent parent.
• With each successive backcross, there is an increase in the percentage of C57B / 6J DNA that constitutes the genome of the offspring.
• In marker assisted backcross conversion, a recipient parent is crossed with a donor line and the hybrid ( F1 ) backcrossed to the recipient.
• A triploid backcross hybrid between " A . rhizophyllum " and " A . tutwilerae " was accidentally produced in culture.
• 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 rye he started a systematic search for cytoplasmic male sterility in backcross generations of crosses between European and " exotic " rye accessions.
• In 1953, Borlaug extended this technique by suggesting that several pure lines with different resistance genes should be developed through backcross methods using one recurrent parent.