Abstract
Xenopus 5S RNA genes exhibit a pattern of differential expression during development in which some members (oocyte-type) are transcribed only in oocytes, while others (somatic-type) are expressed in both oocytes and somatic cells. Using cloned DNA probes specific for each gene type, we determined the positions of these genes on Xenopus metaphase chromosomes by in situ hybridization. Somatic-type 5S genes in both X. laevis and X. borealis are located at the distal end of the long arm of only one chromosome (number 9). The oocyte-type 5S RNA genes are found at the distal ends of the long arms of most Xenopus chromosomes, including chromosome 9. Thus, large scale differences in chromosomal location cannot explain the selective expression of these genes, as suggested previously.
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- Brown D. D., Carrol D., Brown R. D. The isolation and characterization of a second oocyte 5s DNA from Xenopus laevis. Cell. 1977 Dec;12(4):1045–1056. doi: 10.1016/0092-8674(77)90168-4. [DOI] [PubMed] [Google Scholar]
- Brown D. D., Sugimoto K. 5 S DNAs of Xenopus laevis and Xenopus mulleri: evolution of a gene family. J Mol Biol. 1973 Aug 15;78(3):397–415. doi: 10.1016/0022-2836(73)90464-6. [DOI] [PubMed] [Google Scholar]
- Brown D. D., Sugimoto K. The structure and evolution of ribosomal and 5S DNAs in Xenopus laevis and Xenopus mulleri. Cold Spring Harb Symp Quant Biol. 1974;38:501–505. doi: 10.1101/sqb.1974.038.01.054. [DOI] [PubMed] [Google Scholar]
- Chandler M. E., Yunis J. J. A high resolution in situ hybridization technique for the direct visualization of labeled G-banded early metaphase and prophase chromosomes. Cytogenet Cell Genet. 1978;22(1-6):352–356. doi: 10.1159/000130970. [DOI] [PubMed] [Google Scholar]
- Engelke D. R., Ng S. Y., Shastry B. S., Roeder R. G. Specific interaction of a purified transcription factor with an internal control region of 5S RNA genes. Cell. 1980 Mar;19(3):717–728. doi: 10.1016/s0092-8674(80)80048-1. [DOI] [PubMed] [Google Scholar]
- Fedoroff N. V., Brown D. D. The nucleotide sequence of oocyte 5S DNA in Xenopus laevis. I. The AT-rich spacer. Cell. 1978 Apr;13(4):701–716. doi: 10.1016/0092-8674(78)90220-9. [DOI] [PubMed] [Google Scholar]
- Ford P. J., Brown R. D. Sequences of 5S ribosomal RNA from Xenopus mulleri and the evolution of 5S gene-coding sequences. Cell. 1976 Aug;8(4):485–493. doi: 10.1016/0092-8674(76)90216-6. [DOI] [PubMed] [Google Scholar]
- Ford P. J., Mathieson T. Control of 5S RNA synthesis in Xenopus laevis. Nature. 1976 Jun 3;261(5559):433–435. doi: 10.1038/261433a0. [DOI] [PubMed] [Google Scholar]
- Ford P. J., Southern E. M. Different sequences for 5S RNA in kidney cells and ovaries of Xenopus laevis. Nat New Biol. 1973 Jan 3;241(105):7–12. doi: 10.1038/newbio241007a0. [DOI] [PubMed] [Google Scholar]
- Harper M. E., Saunders G. F. Localization of single copy DNA sequences of G-banded human chromosomes by in situ hybridization. Chromosoma. 1981;83(3):431–439. doi: 10.1007/BF00327364. [DOI] [PubMed] [Google Scholar]
- Harper M. E., Ullrich A., Saunders G. F. Localization of the human insulin gene to the distal end of the short arm of chromosome 11. Proc Natl Acad Sci U S A. 1981 Jul;78(7):4458–4460. doi: 10.1073/pnas.78.7.4458. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hayashi S., Gillam I. C., Delaney A. D., Tener G. M. Acetylation of chromosome squashes of Drosophila melanogaster decreases the background in autoradiographs from hybridization with [125I]-labeled RNA. J Histochem Cytochem. 1978 Aug;26(8):677–679. doi: 10.1177/26.8.99471. [DOI] [PubMed] [Google Scholar]
- Korn L. J., Brown D. D. Nucleotide sequence of Xenopus borealis oocyte 5S DNA: comparison of sequences that flank several related eucaryotic genes. Cell. 1978 Dec;15(4):1145–1156. doi: 10.1016/0092-8674(78)90042-9. [DOI] [PubMed] [Google Scholar]
- Korn L. J., Gurdon J. B., Price J. Oocyte extracts reactivate developmentally inert Xenopus 5S genes in somatic nuclei. Nature. 1982 Nov 25;300(5890):354–355. doi: 10.1038/300354a0. [DOI] [PubMed] [Google Scholar]
- Korn L. J. Transcription of Xenopus 5S ribosomal RNA genes. Nature. 1982 Jan 14;295(5845):101–105. doi: 10.1038/295101a0. [DOI] [PubMed] [Google Scholar]
- Lai E. C., Woo S. L., Dugaiczyk A., O'Malley B. W. The ovalbumin gene: alleles created by mutations in the intervening sequences of the natural gene. Cell. 1979 Jan;16(1):201–211. doi: 10.1016/0092-8674(79)90201-0. [DOI] [PubMed] [Google Scholar]
- Pardue M. L., Brown D. D., Birnstiel M. L. Location of the genes for 5S ribosomal RNA in Xenopus laevis. Chromosoma. 1973;42(2):191–203. doi: 10.1007/BF00320940. [DOI] [PubMed] [Google Scholar]
- Pardue M. L. Localization of repeated DNA sequences in Xenopus chromosomes. Cold Spring Harb Symp Quant Biol. 1974;38:475–482. doi: 10.1101/sqb.1974.038.01.051. [DOI] [PubMed] [Google Scholar]
- Pelham H. R., Brown D. D. A specific transcription factor that can bind either the 5S RNA gene or 5S RNA. Proc Natl Acad Sci U S A. 1980 Jul;77(7):4170–4174. doi: 10.1073/pnas.77.7.4170. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pelham H. R., Wormington W. M., Brown D. D. Related 5S RNA transcription factors in Xenopus oocytes and somatic cells. Proc Natl Acad Sci U S A. 1981 Mar;78(3):1760–1764. doi: 10.1073/pnas.78.3.1760. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Peterson R. C., Doering J. L., Brown D. D. Characterization of two xenopus somatic 5S DNAs and one minor oocyte-specific 5S DNA. Cell. 1980 May;20(1):131–141. doi: 10.1016/0092-8674(80)90241-x. [DOI] [PubMed] [Google Scholar]
- Sakonju S., Brown D. D. Contact points between a positive transcription factor and the Xenopus 5S RNA gene. Cell. 1982 Dec;31(2 Pt 1):395–405. doi: 10.1016/0092-8674(82)90133-7. [DOI] [PubMed] [Google Scholar]
- Southern E. M. Detection of specific sequences among DNA fragments separated by gel electrophoresis. J Mol Biol. 1975 Nov 5;98(3):503–517. doi: 10.1016/s0022-2836(75)80083-0. [DOI] [PubMed] [Google Scholar]
- Tymowska J., Kobel H. R. Karyotype analysis of Xenopus muelleri (Peters) and Xenopus laevis (Daudin), Pipidae. Cytogenetics. 1972;11(4):270–278. [PubMed] [Google Scholar]
- Wegnez M., Monier R., Denis H. Sequence heterogeneity of 5 S RNA in Xenopus laevis. FEBS Lett. 1972 Sep 1;25(1):13–20. doi: 10.1016/0014-5793(72)80443-5. [DOI] [PubMed] [Google Scholar]