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Updated: Sep 30, 2025

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Differential environmental and genomic architectures shape the natural diversity for trichome patterning and

Noelia Arteaga1, Belén Méndez-Vigo1, Alberto Fuster-Pons1

  • 1Departamento de Genética Molecular de Plantas, Centro Nacional de Biotecnología (CNB), Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain.

Plant, Cell & Environment
|March 15, 2022
PubMed

Keywords:
Arabidopsis thalianaGLABRA1 (GL1)Genome-Wide Association (GWA)TRICHOMELESS 1 (TCL1)TRIPTYCHON (TRY)climateprecipitationtrichome branchingtrichome patterning

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Transcription01:10

Transcription

Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
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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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