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Light Acquisition02:16

Light Acquisition

In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.

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Related Experiment Video

Updated: May 31, 2026

Imaging and Analysis for Quantifying Maize (Zea mays) Abiotic Stress Phenotypes
06:41

Imaging and Analysis for Quantifying Maize (Zea mays) Abiotic Stress Phenotypes

Published on: March 28, 2025

Genome-wide expression quantitative trait loci (eQTL) analysis in maize.

Beth Holloway1, Stanley Luck, Mary Beatty

  • 1DuPont Agricultural Biotechnology, Wilmington, DE 19880, USA.

BMC Genomics
|July 2, 2011
PubMed
Summary

Expression quantitative trait loci (eQTL) analysis in maize identified thousands of cis- and trans-acting eQTL. A novel regulatory gene controlling ABA 8'-hydroxylase pseudogene expression was discovered, validating eQTL cloning feasibility.

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Lateral Root Inducible System in Arabidopsis and Maize
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Lateral Root Inducible System in Arabidopsis and Maize

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Related Experiment Videos

Last Updated: May 31, 2026

Imaging and Analysis for Quantifying Maize (Zea mays) Abiotic Stress Phenotypes
06:41

Imaging and Analysis for Quantifying Maize (Zea mays) Abiotic Stress Phenotypes

Published on: March 28, 2025

High-throughput, Microscale Protocol for the Analysis of Processing Parameters and Nutritional Qualities in Maize (Zea mays L.)
05:55

High-throughput, Microscale Protocol for the Analysis of Processing Parameters and Nutritional Qualities in Maize (Zea mays L.)

Published on: June 16, 2018

Lateral Root Inducible System in Arabidopsis and Maize
09:23

Lateral Root Inducible System in Arabidopsis and Maize

Published on: January 14, 2016

Area of Science:

  • Plant genetics
  • Genomics
  • Molecular biology

Background:

  • Expression quantitative trait loci (eQTL) analyses are crucial for understanding transcriptional regulation in various species.
  • Microarray-based studies identify cis-acting (proximal gene regulation) and trans-acting (unlinked gene regulation) factors.

Purpose of the Study:

  • To identify cis- and trans-acting eQTL in maize roots.
  • To identify candidate genes underlying trans-acting eQTL.
  • To demonstrate the feasibility of eQTL cloning in maize.

Main Methods:

  • Hydroponics-based genetical genomics study.
  • Analysis of a Zea mays IBM2 Syn10 double haploid population.
  • Positional cloning for candidate gene identification.

Main Results:

  • Tens of thousands of cis- and trans-acting eQTL were identified in maize roots.
  • False-positive eQTL were observed due to incomplete parental genome sequences.
  • A class I glutamine amidotransferase was identified as a candidate trans-acting factor regulating an ABA 8'-hydroxylase pseudogene.

Conclusions:

  • eQTL cloning is feasible in maize, aiding the understanding of gene expression regulation.
  • Incomplete genome sequences can lead to false-positive eQTL identification.
  • A novel regulatory mechanism involving glutamine amidotransferase was uncovered.