Whole mount electron microscopy of Drosophila melanogaster salivary gland chromosome 2L: divisions 21-24
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چکیده
منابع مشابه
Salivary gland development in Drosophila melanogaster
The Drosophila salivary gland is proving to be an excellent experimental system for understanding how cells commit to specific developmental programs and, once committed, how cells implement such decisions. Through genetic studies, the factors that determine where salivary glands will form, the number of cells committed to a salivary gland fate, and the distinction between the two major cell ty...
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A human and a mouse strain of the salivary gland virus have been examined by electron microscopy. The human strain was transmitted, prior to examination, to tissue cultures derived from human myometrial cells, while the mouse strain was examined in mice inoculated intraperitoneally. The nuclear forms associated with both strains of virus were morphologically similar. Nuclear inclusions, compose...
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Observations on pairing of salivary gland chromosomes are open to question on the grounds that paired chromosomes may be separated in the process of squashing that is used routinely in the preparation of these chromosomes for microscopic observation. Some evidence is presented here that chromosome regions paired before squashing are not affected by this technique, but remain paired. The materia...
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Although traditional genetic assays have characterized the pattern of crossing over across the genome in Drosophila melanogaster, these assays could not precisely define the location of crossovers. Even less is known about the frequency and distribution of noncrossover gene conversion events. To assess the specific number and positions of both meiotic gene conversion and crossover events, we se...
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ژورنال
عنوان ژورنال: Hereditas
سال: 2008
ISSN: 0018-0661
DOI: 10.1111/j.1601-5223.1986.tb00639.x