Aedes aegypti

Sundararajan Balasubramani1, Subba Reddy Palli1

  • 1Department of Entomology, Martin-Gatton College of Agriculture Food and Environment, University of Kentucky, Lexington, Kentucky, USA.

概括

基因组脱乙酶 (HDACs) 对蚊子的繁殖和发育至关重要. 击落特定的HDAC基因在艾迪斯埃吉普蒂明显损害了卵细胞的发育,产卵和胚胎发育,突出显示了它们的重要作用.

相关概念视频

Inheritance of Chromatin Structures03:17

Inheritance of Chromatin Structures

Epigenetics is the study of inherited changes in a cell's phenotype without changing the DNA sequences. It provides a form of memory for the differential gene expression pattern to maintain cell lineage, position-effect variegation, dosage compensation, and maintenance of chromatin structures such as telomeres and centromeres. For example, the structure and location of the centromere on chromosomes are epigenetically inherited. Its functionality is not dictated or ensured by the underlying...
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Histone Modification02:32

Histone Modification

The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
Acetylation
The enzyme histone acetyltransferase adds acetyl group to the histones. Another enzyme, histone...
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Chromatin Modification in iPS Cells01:32

Chromatin Modification in iPS Cells

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Euchromatin01:01

Euchromatin

The extent of chromatin compaction can be studied by staining chromatin using specific DNA binding dyes. Under the microscope, the dense-compacted regions take up more dye, appearing darker, while the less-compact areas take up less dye and appear lighter. Based on the compaction level, chromatins are classified into two primary forms – euchromatin and heterochromatin.
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The Ratio of X Chromosome to Autosomes02:45

The Ratio of X Chromosome to Autosomes

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Heterochromatin02:38

Heterochromatin

The extent of chromatin compaction can be studied by staining chromatin using specific DNA binding dyes. Under the microscope, the dense-compacted regions that take up more dye are called heterochromatin. Heterochromatin is further classified into two forms – constitutive heterochromatin and facultative heterochromatin.
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