黑腹果蝇早期胚胎发育中的组成型异染色质。
Constitutive heterochromatin in early embryogenesis of Drosophila melanogaster.
作者信息
Vlassova I E, Graphodatsky A S, Belyaeva E S, Zhimulev I F
机构信息
Institute of Cytology and Genetics, USSR Academy of Sciences, Novosibirsk.
出版信息
Mol Gen Genet. 1991 Oct;229(2):316-8. doi: 10.1007/BF00272172.
PMID:1921980
Abstract
The formation of constitutive heterochromatin was studied during the embryonic development of Drosophila melanogaster, using the C-banding technique. During embryonic cleavage, C-banded material is not seen in mitotic chromosomes; the differentiation between euchromatin and heterochromatin only occurs at blastoderm. This event correlates with the establishment of position-effect variegation.
摘要
利用C带技术，研究了黑腹果蝇胚胎发育过程中组成型异染色质的形成。在胚胎卵裂期间，有丝分裂染色体中未见C带物质；常染色质和异染色质之间的分化仅发生在胚盘形成期。这一事件与位置效应斑驳的建立相关。
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