+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Inheritance in Nicotiana tabacum XXIX: The relationships of residual chromosome homology to interspecific gene transfer



Inheritance in Nicotiana tabacum XXIX: The relationships of residual chromosome homology to interspecific gene transfer



Amer. Nat 92: 267-78



Introgressive transfer of a genetic locus of one species into the genome of a second species involves an interspecific chromosomal exchange. This exchange may result from a random break and reunion or the exchange may be nonrandom, involving certain chromosomes of the recipient species more frequently than others. In order to see which of these alternatives is more likely, the locus Ws, responsible for nonwhite seedlings, of N. plumbaginifolia was transferred repeatedly into the genome of N. tabacum. The method used involved crossing autotetraploid. N. tabacum with diploid N. plumbaginifolia to give the sesquidiploid hybrid; this latter was then back crossed to N. tabacum. Repeated back crossing yielded diploid N. tabacum plants with a single marked chromosome of N. plumbaginifolia. By selfing four heterozygous segmental substitution plants of independent origin, a number of homozygous segmental substitution lines were obtained; these lines showed some quantitative variability. It was found that out of 14 chromosome transfers, eight involved the same chromosome of N. tabacum; the other six transfers were equally distributed over three other chromosomes. This nonrandom distribution supports the view that some residual homology exists between the chromosomes of the two species. An alternative method of transferring a locus from one species to another involves treating heterozygous addition plants, carrying one extra alien chromosome, with certain mutagenic agents. However a mutagen-induced translocation is a random event and makes no use of residual homology between chromosomes of the two species. It is pointed out that when residual homology is utilized, the chances are better that in at least some of the segmental substitution lines, the introgressed segment will provide a successful substitute for the replaced genes.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 014082015

Download citation: RISBibTeXText


Related references

Inheritance in Nicotiana tabacum XXIX The relationship of residual chromosome homology to interspecific gene transfer. The American Naturalist 92(866): 267-278, 1958

Inheritance in Nicotiana tabacum. XXX: autotriploidy, a possible means of increasing the rate of interspecific gene transfer. Heredity 17: 373-79, 1962

Chromosome pairing and pollen fertility in the interspecific f 1 hybrids nicotiana tabacum l. x nicotiana benavidesii goodspeed nicotiana knightiana goodspeed x nicotiana tabacum and nicotiana raimondii macbride x nicotiana tabacum. Genetica Polonica 28(3): 263-270, 1987

Somatic hybridization in nicotiana interspecific gene transfer between nicotiana tabacum l and wild nicotiana spp using dual antibiotic selection. Journal of Cellular Biochemistry Suppl. (16 Part F): 206, 1992

Sexual transfer of an incomplete chromosome complement from Nicotiana tabacum L. to Nicotiana rustica L. Tobacco, interspecific hybrid. Ikushugaku zasshi = Japanese journal of breeding 33(1): 15-22, 1983

Radiation induced interspecific transfer of ws pbg gene from nicotiana plumbaginifolia d to nicotiana tabacum d ii estimation of frequency of the gene transfer induced by irradiation at the gameto genetic stage. Japanese Journal of Breeding 19(2): 84-88, 1969

Chromosome substitution and gene mutation concurring to produce a white flower derivative of the interspecific hybrid nicotiana tabacum x nicotiana benavidesii. Genetica Polonica 21(3): 283-290, 1980

Meiotic chromosome pairing in an f chromosome deficient nicotiana tabacum nicotiana glutinosa interspecific hybrid. Journal of Heredity 64(3): 169-171, 1973

Inheritance of resistance to lycopersicon virus 3 smith in interspecific nicotiana tabacum x nicotiana sanderae hybrids. Genetika i Selektsiya 18(4): 306-311, 1985

Radiation induced interspecific transfer of WS (PBG) gene from Nicotiana plumbaginifolia to N. tabacum. II. Estimation of frequency of the gene transfer induced by irradiation at the gameto-genetic stage. Ikushugaku Zasshi/Jap. J. Breeding 19: 84-88, 1969

Interspecific hybrids in nicotiana through in vitro culture of fertilized ovules nicotiana stocktonii x nicotiana tabacum sexual hybrid nicotiana nesophila x nicotiana tabacum sexual hybrid nicotiana repanda x nicotiana tabacum sexual hybrid. Journal of Heredity 69(5): 311-315, 1978

Inheritance of the resistance to tomato spotted wilt virus nicotiana virus 1 smith and erysiphe cichoracearum d.c. originating from the wild species nicotiana sanderae in interspecific crosses with nicotiana tabacum. Genetika i Selektsiya 22(5): 412-419, 1989

Chromosome pairing and pollen fertility in the interspecific F1 hybrids Nicotiana tabacum L. X N. benavidesii Goodspeed, N. knightiana Goodspeed X N. tabacum, and N. raimondii MacBride X N. tabacum. Genetica Polonica 28(3): 263-269, 1987