Related satellite DNA's in the genus Mus*1

Sutton, W.D.

doi:10.1016/0022-2828(72)90036-3

Cited by 9 publications

(12 citation statements)

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“…Comparisons of closely related species of Drosophila (33,34), primates (18), and rodents (17,20,26), again, have demonstrated that within each cluster, the distinction between species resides in the amount of repeated DNA. The sequence of this fraction of DNA, at least in mice (38), is instead remarkably stable. The molecular basis of the differences in the DNA amount observed in this study has not been established yet.…”

Section: Discussionmentioning

confidence: 93%

DNA content differences in laboratory mouse strains determined by flow cytometry

et al. 1997

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Section: Discussionmentioning

confidence: 93%

DNA content differences in laboratory mouse strains determined by flow cytometry

et al. 1997

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“…However, controversy exists about the importance of other mechanisms, such as gene amplification (Walsch 1987), replication slippage (Stephan 1989), and sudden large-scale amplification (Britten and Kohne 1986;Sutton and McCallum 1972). Bacteriophage )~ clone inserts containing repetitive DNAs are known to be unstable, suggesting an ongoing dynamic process (Arnheim and Kuehn 1979;Collins and Rubin 1983;Levis and Rubin 1982;Kiyama et al 1987).…”

Section: Introductionmentioning

confidence: 99%

Junctions between repetitive DNAs on the PSR chromosome of Nasonia vitripennis: Association of palindromes with recombination

et al. 1994

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The Paternal-Sex-Ratio (PSR) chromosome of Nasonia vitripennis contains several families of repetitive DNAs that show significant sequence divergence but share two palindromic regions. This study reports on the analysis of junctions between two of these repetitive DNA families (psr2 and psr18). Three lambda clones that hybridized to both repeat families were isolated from PSR-genomic DNA libraries through multiple screenings and analyzed by Southern blots. Analysis of clones showed a region in which the two repeat types are interspersed, flanked by uniform blocks of each repeat type. PCR amplification of genomic DNA confirmed the contiguous arrangement of psr2 and psr18 on PSR and identified an additional junction region between these repeats that was not present in the lambda inserts. We isolated and sequenced 41 clones from the lambda inserts and genomic PCR products containing junction sequences. Sequence analysis showed that all transitions between psr2 and psr18 repeats occurred near one of the two palindromes. Based on the inheritance pattern of PSR, recombination between repeats on this chromosome must be mitotic (rather than meiotic) in origin. The occurrence of exchanges near the palindromes suggests that these sequences enhance recombination between repeat units. Rapid amplification of repetitive DNA may have been an important factor in the evolution of the PSR chromosome.

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“…Analysis of the distribution pattern of DAPIpositive heterochromatin fluorescence staining by counterstaining with distamycin A-DAPI provides information about the relationship between sequence differences of satellite DNA and distamycin A-DAPI positive heterochromatin (Schweizer et al 1978;Schwarzacher-Robinson et al 1988). The difference in satellite DNA sequence, its abundance between Mus species and the distribution of satellite DNA sequence among various chromosomes have been previously described (Sutton and McCallum 1972;Rice and Straus 1973). Brown and Dover (1980) analyzed the satellite DNA content in M. spretus with Hoechst 33258-CSC1 density centrifugation methods and found that there was no satellite peak equivalent to that observed in M. domesticus.…”

Section: Discussionmentioning

confidence: 98%

“…Evolutionary divergence in satellite DNA sequences among Mus species was established by several investigators by comparing the patterns of buoyant density families that could be separated by genomic DNA and by analyzing the hybridization kinetics of satellite DNA hybrids using genomic DNA and separated satellites from different Mus species (Rice and Straus 1973;Sutton and McCallum 1972). More recently, the analysis of M. spretus genomic DNA with labeled "musculus" satellite DNA indicated a marked reduction in the relative abundance of major satellite sequences (Brown and Dover 1980).…”

Section: Introductionmentioning

confidence: 99%

In situ analysis of centromeric satellite DNA segregating inMus species crosses

Matsuda

Chapman

1991

Mammalian Genome

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In situ hybridization of biotin-labeled mouse major satellite DNA clone pMR196 was applied to Mus domesticus and Mus spretus chromosomes (Chr). The same karyotypes were counterstained with distamycin A-DAPI to identify AT-rich heterochromatin. Chromosomes from the laboratory mouse, C57BL/6Ros (BL/6; M. domesticus) were uniformly labeled at the centromere except for the Y, while chromosomes from the divergent Mus species M. spretus showed little or no hybridization. Differences between Mus species in copy number of the major satellite DNA sequence were used to identify chromosomes of M. domesticus and M. spretus in their F1 hybrids and to discriminate domesticus and spretus centromeres in backcross progeny. The distribution pattern of heterochromatic regions demonstrated by distamycin A-DAPI counterstaining was comparable with that of in situ hybridization with pMR196, suggesting that A-T rich heterochromatin in M. domesticus is mainly constructed by the pMR196-related sequence. The in situ technique was used to examine segregation of domesticus centromeres in backcross progeny obtained by mating F1 hybrid females with M. domesticus or M. spretus males. The segregation of centromeres did not deviate from the expected among the backcross progeny from C57BL/6Ros males, whereas chromosomes with M. domesticus centromeres were prone to appear in the progeny from backcross matings by M. spretus males.

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Related satellite DNA's in the genus Mus*1

Cited by 9 publications

References 0 publications

DNA content differences in laboratory mouse strains determined by flow cytometry

DNA content differences in laboratory mouse strains determined by flow cytometry

Junctions between repetitive DNAs on the PSR chromosome of Nasonia vitripennis: Association of palindromes with recombination

In situ analysis of centromeric satellite DNA segregating inMus species crosses

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