Summary
Some dispersed repeated sequences and their flanking regions from wheat and maize ctDNAs have been characterized. Two sets of wheat ctDNA repeats were found to be the chloroplast ribosomal protein genesrpl2 andrpl23, plus nonfunctional segments of them, designatedrpl2′ andrpl23′. Pairwise comparisons were made between the wheatrp123 andrpl23′, and the maizerp123′ sequences. The precise patterns of homology suggest that the divergence of the wheat and maize nonfunctional (rpl23′) sequences is being retarded by nonreciprocal recombination, biased by selection for individuals with functional (rpl23) sequences. The implied involvement of these sequences in mechanisms of homologous recombination, and therefore in the creation and spread of new ctDNA variants, is discussed.
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Albertini A, Hofer M, Calos MP, Miller JH (1982) Cell 24:319–328
Baltimore D (1981) Cell 24:592–594
Barros MDC, Barker RF, Dyer TA (1988) Plant Mol Biol (in press)
Birkey CW Jr (1983) Science 222:468–475
Boffey SA, Leech RM (1982) Plant Physiol 69:1387–1391
Bonnard G, Weil J-H, Steinmetz A (1985) Curr Genet 9:417–422
Bowman CM, Dyer TA (1986) Curr Genet 10:931–941
Chen EJ, Seeburg PH (1985) DNA 4:165–170
Dang LH, Pring DR (1986) Plant Mol Biol 6:119–123
Dover G (1982) Nature 299:111–117
Dover GA, Tautz D (1986) Philos Trans R Soc Lond [Biol] 312:275–289
Gatenby AA, Castleton JA, Saul MW (1981) Nature 2 91:117–121
Gillham NW, Boynton JE, Harris EH (1985) In: Cavalier-Smith T (ed) The evolution of genome size. Wiley, New York, pp 299–251
Hallick RB, Bottomley W (1983) Plant Mol Biol Rep 1(4):38–43
Howe CJ (1985) Curr Genet 10:139–145
Howe CJ, Barker RF, Bowman CM, Dyer TA (1988) Curr Genet 13:343–349
Kimura M (1986) Philos Trans R Soc Lond Ser B 312:343–354
Kolodner R, Tewari KK (1979) Proc Natl Acad Sci USA 76:41–45
Kowalczykowski SC (1987) Trend Biochem Sci 12:141–145
Lemieux C, Lee RW (1987) Proc Natl Acad Sci USA 84:4166–4170
Liskay RM, Letsou A, Stachelek JL (1987) Genetics 115:161–167
Maeda N, Smithies O (1986) Annu Rev Genet 20:81–108
Maxam AM, Gilbert W (1980) Methods Enzymol 65:499–560
McIntosh L, Poulsen C, Bogorad L (1980) Nature 288:556–560
Medgyesy P, Fejes E, Maliga P (1985) Proc Natl Acad Sci USA 82:6960–6964
Michalowski C, Breunig KD, Bohnert HJ (1987) Curr Genet 11:265–274
Moon E, Kao T-H, Wu R (1987) Nucleic Acids Res 15:611–630
Murphy G, Kavanagh A (1988) Nucleic Acids Res (in press)
Oliver RP, Poulsen C (1984) Carlsberg Res Commun 49:647–673
Palmer JD (1983) Nature 301:92–93
Palmer JD (1985) Annu Rev Genet 19:325–354
Palmer JD, Osorio B, Aldrich J, Thompson WF (1987) Curr Genet 11:275–286
Quigley F, Weil JH (1985) Curr Genet 9:495–503
Sanger F, Nicklen S, Coulsen AR (1977) Proc Natl Acad Sci USA 74:5463–5467
Sellden G, Leech RM (1981) Plant Physiol 68:731–734
Shinozaki K, Ohme M, Tanaka M, Wakasugi T, Hayashida N, Matsubayashi T, Zaita N, Chunwongse J, Obokata J, Yamaguchi-Shinozaki K, Ohto C, Torazawa K, Meng BY, Sugita M, Deno H, Kamogashim T, Yamada K, Kusuda J, Takaiwa F, Kato A, Tohdoh N, Shimada H, Sugiura M (1986) EMBO J 5:2043–2049
Smithies O, Powers PA (1986) Philos Trans R Soc Lond [Biol] 312:291–302
Spreitzer RJ, Chastain CJ (1987) Curr Genet 11:611–616
Stern DB, Gruissem W (1987) Cell 51:1145–1157
Szostak JW, Orr-Weaver TL, Rothstein R, Stahl FW (1983) Cell 33:25–35
Tanaka M, Wakasugi T, Sugita M, Shinozaki K (1986) Proc Natl Acad Sci USA 83:6030–6034
Voelkel-Meiman K, Keil RL, Roeder GS (1987) Cell 48:1071–1079
Weiner AM, Deininger PL, Efstradiatis A (1986) Annu Rev Biochem 55:631–661
Wolfe KH, Li W-H, Sharp PM (1987) Proc Natl Acad Sci USA 84:9054–9058
Zurawski G, Clegg MT (1987) Annu Rev Plant Physiol 38:391–418
Zurawski G, Clegg MT, Brown AHD (1984) Genetics 106:735–749
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Bowman, C.M., Barker, R.F. & Dyer, T.A. In wheat ctDNA, segments of ribosomal protein genes are dispersed repeats, probably conserved by nonreciprocal recombination. Curr Genet 14, 127–136 (1988). https://doi.org/10.1007/BF00569336
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DOI: https://doi.org/10.1007/BF00569336