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Backcross Breeding 2: The Backcrossing Process
Journal of Natural Resources and Life Sciences Education, 2003Backcrossing is an old breeding method that is now widely used to transfer transgenes from transformed lines into parent lines. Sometimes this is referred to as line conversion in the seed industry. This lesson teaches the steps in the backcrossing process.
Hain, Patricia, Lee, Donald J.
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Scientia Horticulturae, 2021
Abstract Indian cucumber cultivars are basically monoecious and vigorous in nature with many lateral branches but they are poor in productivity. The present study was aimed to introgress gynoecious trait (F locus) from pickling cucumber line (Gy14) into elite Indian cultivar Pusa Uday using marker assisted backcross breeding.
G Boopalakrishnan +5 more
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Abstract Indian cucumber cultivars are basically monoecious and vigorous in nature with many lateral branches but they are poor in productivity. The present study was aimed to introgress gynoecious trait (F locus) from pickling cucumber line (Gy14) into elite Indian cultivar Pusa Uday using marker assisted backcross breeding.
G Boopalakrishnan +5 more
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A successful backcross in Trypanosoma brucei
Molecular and Biochemical Parasitology, 1995Genetic exchange can take place between different strains of Trypanosoma brucei ssp. when they are cotransmitted via the tsetse fly vector, but the mechanism and limits of compatibility between strains are ill-defined as yet. Following the recovery of several hybrid genotypes with single drug resistance from a cross of drug resistant parental strains ...
W, Gibson, G, Kanmogne, M, Bailey
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Backcrossing as a species restoration technique
Zoo Biology, 2023AbstractAn investigation was conducted on the phenotypic results of mouse hybridization and seven generations of backcrossing, observing reciprocal F1 hybrids and backcrosses of Mus spretus and a laboratory strain of Mus domesticus C57BL/6J. F1 hybrids, backcrosses, and pure control specimens were measured for 6 body characteristics, 4 pelage ...
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Backcross Populations and Near Isogenic Lines
2012The development of near isogenic lines (NILs) through repeated backcrossing of genetically distinct parental lines is rather straightforward. Nonetheless, depending on the available resources and the purpose of the lines to be generated, several choices can be made to guide the design of such inbred populations.
Kooke, R. +2 more
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2009
Backcross breeding enables breeders to transfer a desired trait such as a transgene from one variety (donor parent, DP) into the favored genetic background of another (recurrent parent, RP). If the trait of interest is produced by a dominant gene, this process involves four rounds of backcrossing within seven seasons.
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Backcross breeding enables breeders to transfer a desired trait such as a transgene from one variety (donor parent, DP) into the favored genetic background of another (recurrent parent, RP). If the trait of interest is produced by a dominant gene, this process involves four rounds of backcrossing within seven seasons.
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Improvement of transgenic alfalfa by backcrossing
In Vitro Cellular & Developmental Biology - Plant, 1995Two regenerative alfalfa genotypes were transformed withAgrobacterium tumefaciens with binary vectors containing the coding sequences for s-glucuronidase (GUS) and npt II (kanamycin resistance). The regenerative genotypes and their transgenic populations were agronomically inferior, and one was a somaclonal variant for flower color.
M. C. Micallef, S. Austin, E. T. Bingham
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Meiotic abnormalities in backcross lines of hybrid Haemonchus
International Journal for Parasitology, 1980Abstract Le Jambre L. F. and Royal W. M. 1979. Meiotic abnormalities in backcross lines of hybrid Haemonchus. International Journal for Parasitology10: 281–286. Hybrid worms from the reciprocal matings between Haemonchus contortus and H. placei were backcrossed to the parent species.
L F, Le Jambre, W M, Royal
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Cytoplasmic evaluations during substitution backcrossing inSolanum
Potato Research, 1982Sterility-resistant cytoplasmic factors ofSolanum tuberosum spp.andigena (Juz. & Buk.) Hawkes and ofSolanum phureja (Juz. & Buk.) were combined with chromosomal genes ofS. tuberosum ssp.tuberosum. Eleven morphological characters of reciprocal F1 and BC1 progenies were monitored to evaluate rate of progression towards characteristics occurring in the ...
Jack E. Staub, P. Grun, V. Amoah
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Backcross Breeding 1: Basic Gene Inheritance
Journal of Natural Resources and Life Sciences Education, 2003Predicting the inheritance of transgenes is fundamentally important in developing transgenic crops. This lesson teaches the basic concepts in gene inheritance using plant genetic examples. This is lesson nine in a 10‐lesson series found in the Library of Crop Technology (http://croptechnology.unl.edu) designed to teach the basics of the plant genetic ...
Lee, Donald J., Hain, Patricia
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