在青中广泛发现的卫星DNA转录的证据

相关实验视频

Updated: Jun 3, 2025

Isolation of Giant Lampbrush Chromosomes from Living Oocytes of Frogs and Salamanders
10:07

Isolation of Giant Lampbrush Chromosomes from Living Oocytes of Frogs and Salamanders

Published on: December 5, 2016

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Jennifer Nunes Pompeo1, Kaleb Pretto Gatto2, Diego Baldo3

  • 1Laboratório de Estudos Cromossômicos, Instituto de Biologia, Universidade de Campinas, Campinas 13083-862, SP, Brazil.

Genes
|January 8, 2025
PubMed
概括

卫星DNA (satDNA) PcP190在青中被转录,包括其可变区域. 这表明转录,而不仅仅是特定的保留区域,驱动PcP190的satDNA进化和变异性.

关键词:
阿努拉·阿努拉 (Anura Anura) 是一个生物信息学是一种生物信息学.基因组学就是基因组学.转录组 (transcriptome) 是一个转录组.

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Genome-wide Snapshot of Chromatin Regulators and States in Xenopus Embryos by ChIP-Seq10:23

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相关概念视频

Lampbrush Chromosomes01:51

Lampbrush Chromosomes

In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
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Polytene chromosomes are giant interphase chromosomes with several DNA strands placed side by side. They were discovered in the year 1881 by Balbiani in salivary glands, intestine, muscles, malpighian tubules, and hypoderm of larvae Chironomus plumosus. Hence, these are also called "Salivary gland chromosomes." These are found in insects of the order Diptera and Collembola; in certain organs of mammals; and synergids, antipodes of flowering plants. Polytene chromosomes are also...
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Position-effect Variegation

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Complementary DNA

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DNA-only transposons are called autonomous transposons since they code for the enzyme transposase that is required for the transposition mechanism. Insertion of transposons can alter gene functions in multiple ways. They can mutate the gene, alter gene expression by introducing a novel promoter or insulator sequence, introduce new splice sites, and change the mRNA transcripts produced, or remodel chromatin structure.
The donor site from where the transposon is excised is either degraded or...
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