Abstract
Transposable elements first discovered in maize have been discovered subsequently also in bacteria, yeast,Drosophila, mammals etc. Structurally, eukaryotic transposable elements may be classified into two groups: ones with direct or inverse-repeat ends and the others with dAMP-rich sequence at one end. They generate direct repeats at the target site. Quite often, transposable elements are dispersed as a number of copies through the genome and at times may constitute a small but significant fraction. Their dispersal or transposition through the genome may involve excision (precise or imprecise), recombination (homologous or non-homologous) and replicative events in elements with direct or inverse repeats. dAMP-ended elements may move by reverse transcription. Maize elements can modulate gene action and yeast Tyl elements can enhance transcription. Nevertheless, evidence is not conclusive that transposable elements are involved in a major way in gene regulation and development. Structural similarities among yeast Tyl elements,Drosophila copia sequences and retroviral proviruses such as Rous sarcoma virus (RSV) and mouse mammary tumor virus (MMTV) suggest a formal possibility of horizontal transfers.
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References
Barclay P C and Brink R A 1954Proc. Natl. Acad. Sci. USA 40 1118
Brink R A and Nilan A R 1952Genetics 37 519
Brodeur G M, Sandmeyer S B and Olson M V 1983Proc. Natl. Acad. Sci. USA 80 3292
Burr B and Burr F A 1981aGenetics 98 143
Burr B and Burr F A 1981bCold Spring Harbor Symp. 45 463
Burr B and Burr F A 1982Cell 29 977
Cameron J R, Loh E Y and Davis R W 1979Cell 16 739
Chandra Mouli and Notani N K 1970Can J. Genet. Cytol. 12 436
Collins M and Rubin G M 1984Nature (London) 308 323
Courage-Tebbe U, Doring H P, Fedoroff N, Starlinger P 1983Cell 34 383
Dawid I B, DiNocera P P and Mandal R K 1983Abst. 15th Int. Cong. Genetics, N. Delhi Vol1 p 168
delRey F J, Donahue T F and Fink G R 1982Proc. Natl. Acad. Sci. USA 79 4138
DiGiovanni L, Haynes S R, Misra R and Jelinek W R 1983Proc. Natl. Acad. Sci. USA 80 6533
Doolittle W F and Sapienza C 1980Nature (London) 284 601
Doring H P, Tillmann F and Starlinger P 1984aNature (London) 307 127
Doring H P, Freeling M, Hake S, Johns M A, Kunze R, Merckelbach A, Salamini F and Starlinger P 1984bMol. Gen. Genet. 193 199
Eibel H, Gafner J, Stotz A and Philippsen P 1980Cold Spring Harbor Symp. Quant. Biol. 45 609
Elder R T, Loh E Y and Davis R W 1983Proc. Natl. Acad. Sci. USA 80 2432
Fedoroff N 1983a inMobile genetic elements, (ed.) J Shapiro, (New York: Academic Press) pp. 1–63
Fedoroff N, Marwais J and Chaleff D 1983bJ. Mol. Appl. Gen. 12 11
Fedoroff N, Wessler S and Shure M 1983aCell 35 235
Finnegan D J, Rubin G M, Young M W and Hogness D S (1978)Cold Spring Harbor Symp. Quant. Biol. 42 1053
Greenblatt I M and Brink R A 1962Genetics 47 489
Greenblatt I M and Brink R A 1963Nature (London) 197 412
Ikenaga H and Saigo K 1982Proc. Natl. Acad. Sci. USA,79 4143
Kemble R J and Thomson R D 1982Nucleic acid Res. 10 8181
Kiefer M C, Owens R A and Diener T O 1983Proc. Natl. Acad. Sci. USA 80 6234
Klein A S and Nelson O E 1983Proc. Natl. Acad. Sci. USA 80 7591
Kugimiya W, Ikenaga H and Saigo K 1983Proc. Natl. Acad. Sci. USA 80 3193
Levings C S and Sederoff R R 1983Proc. Natl. Acad. Sci. USA 80 4055
McClintock B 1950Proc. Natl. Acad. Sci. USA 36 344
McClintock B 1951Cold Spring Harbor Symp. Quant. Biol. 16 13
McClintock B 1961Am. Nat. 95 265
Notani N K and Bhatia C R 1984 Report onTransposable elements of maize and other vectors for plant DNA transfer for NBTB. 49 pp.
Neuffer M G 1966Genetics 54 249
Orgel L E and Crick F H C 1980Nature (London) 284 604
Peterson P A 1965Am. Nat. 99 391
Roeder S G and Fink G R 1983 in,Mobile genetic elements (ed.) J Shapiro (New York: Academic Press) pp. 299–328
Rubin G M 1983 inMobile genetic elements (ed) J Shapiro (New York: Academic Press) pp. 329–361
Rubin G M, Bororein W J, Dunsmuir P, Flavel A J, Levis R, Strobel E, Toole J J and Young E 1981Cold Spring Harbor Symp. Quant. Biol,45 619
Sutton W D, Gerlach W L, Schuwartz D and Peacock W J 1948Science (in press)
Varmus H E 1983 in,Mobile genetic elements (ed.) J Shapiro (New York: Academic Press) pp. 411–503
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Notani, N.K. Eukaryotic transposable elements. Proc. Indian Acad. Sci. 93, 329–336 (1984). https://doi.org/10.1007/BF03053086
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DOI: https://doi.org/10.1007/BF03053086