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Organization and dynamics of satellite and telomere DNAs in Ascaris: implications for formation and programmed breakdown of compound chromosomes
TLDR
Light is shed on the evolutionary history of chromosome aggregation and satellite DNA formation, and putative mechanisms involved in the process of site-directed breakage to reestablish stable somatic chromosomes are shed.
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Complexity of germline and somatic DNA in Ascaris
TLDR
The results presented here show that the germline DNA of Ascaris contains highly repetitive components, eliminated by the diminution process, and their possible molecular function in connection with germline–soma differentiation and chromosomal behaviour is discussed.
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The highly variable pentameric repeats of the AT-rich germline limited DNA in Parascaris univalens are the telomeric repeats of somatic chromosomes.
TLDR
A model in which pentameric repeats originate via amplification by a terminal transferase (telomerase) in both the germline and the somatic genome is suggested, recently suggested as universal features of eukaryotic telomeres.
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Chromatin diminution in Ascaris suum: nucleotide sequence of the eliminated satellite DNA.
TLDR
The prototype sequence of the DNA which is eliminated in the course of chromatin diminution in Ascaris suum is determined and the overall structure of this germ line limited DNA corresponds to the segmental organization characteristic of satellite DNAs.
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Boveri's contributions to developmental biology--a challenge for today.
  • K. Moritz, H. Sauer
  • Biology, Medicine
    The International journal of developmental…
  • 1 February 1996
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A novel UV-damaged DNA binding protein emerges during the chromatin-eliminating cleavage period in Ascaris suum.
TLDR
It is suggested that CDAF1 plays a dual role: during the early segregative cleavage period it might be involved in chromatin diminution as a transfactor and act in nucleotide excision repair as an accessory factor throughout embryogenesis.
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Restriction enzyme analysis of the germ line limited DNA of Ascaris suum
TLDR
The tandem arrangement and the hierarchical pattern of restriction sites throughout different subfamilies supports the model of successive segmental amplification events during the evolution of the germ line limited DNA.
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Chromatin diminution and early cleavage in Parascaris univalens (Nematoda)
TLDR
An “activation” model as an alternative to a prelocalization model is presented, which can account for early blastomere topogenesis and chromatin diminution.
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Ascaris DNA topoisomerase I binds preferentially to the germ-line-limited DNA
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Protein kinase activities during early development ofAscaris scum
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