Related Experiment Video

Updated: May 11, 2026

Quantifying Abdominal Pigmentation in Drosophila melanogaster
08:41

Quantifying Abdominal Pigmentation in Drosophila melanogaster

Published on: June 1, 2017

Genetic parameters and genome-wide association study of hyperpigmentation of the visceral peritoneum in chickens

Chenglong Luo1, Hao Qu, Jie Wang

  • 1Institute of Animal Science, Guangdong Academy of Agricultural Sciences, 1 Dafeng 1st Street, Wushan, Tianhe District, Guangzhou, Guangdong, 510640, China.

BMC Genomics
|May 18, 2013
PubMed
Abstract

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Epistasis

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Epistasis Analysis

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Position-effect Variegation

In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
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Pleiotropy

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