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Microdissection of the "globular" and "granular" landmark loops of Pleurodeles lampbrush chromosomes and subsequent cloning of their DNA yielded several recombinant clones. The 6.6-kb insert of one of them was subcloned and the 600 bp of one subclone was characterized by Southern and slot hybridizations as well as by sequencing. This sequence, designated p130B, was shown to belong to a class of moderately repetitive DNA. RNA expression of this sequence was investigated by in situ hybridization of p130B to the nascent transcripts of lateral loops. Results showed that: (1) the same transcripts were not always found in matrices of landmarks exhibiting the same morphological features; (2) the same transcripts were expressed in loops of different morphological types. Based on these results we suggest that even if there is a morphological similarity of landmark loops, this does not reflect total similarity of their transcripts.
M Penrad-Mobayed, and
P Sourrouille, and
M L Bonnanfant-Jaïs, and
E N'Da, and
J E Edström, and
N Angelier
October 1994,
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N Angelier
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N Angelier
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M Penrad-Mobayed, and
P Sourrouille, and
M L Bonnanfant-Jaïs, and
E N'Da, and
J E Edström, and
N Angelier
November 1990,
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M Penrad-Mobayed, and
P Sourrouille, and
M L Bonnanfant-Jaïs, and
E N'Da, and
J E Edström, and
N Angelier
July 1990,
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M Penrad-Mobayed, and
P Sourrouille, and
M L Bonnanfant-Jaïs, and
E N'Da, and
J E Edström, and
N Angelier
November 1972,
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M Penrad-Mobayed, and
P Sourrouille, and
M L Bonnanfant-Jaïs, and
E N'Da, and
J E Edström, and
N Angelier
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M Penrad-Mobayed, and
P Sourrouille, and
M L Bonnanfant-Jaïs, and
E N'Da, and
J E Edström, and
N Angelier
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M Penrad-Mobayed, and
P Sourrouille, and
M L Bonnanfant-Jaïs, and
E N'Da, and
J E Edström, and
N Angelier
January 1991,
Methods in cell biology,
