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Related Concept Videos

Light Acquisition

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.

Responses to Drought and Flooding

Responses to Drought and Flooding

Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.

Adaptations that Reduce Water Loss

Adaptations that Reduce Water Loss

Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.

Responses to Salt Stress

Responses to Salt Stress

Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.

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Related Experiment Video

Updated: Jun 28, 2025

Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce Lactuca sativa Germplasm Collections

Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce Lactuca sativa Germplasm Collections

Published on: April 17, 2015

Exploring the Drought Tolerant Quantitative Trait Loci in Spring Wheat.

Zhong Wang^1,2,3,4, Xiangjun Lai⁵, Chunsheng Wang^1,2,3,4

¹Institute of Nuclear and Biological Technologies, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China.

Plants (Basel, Switzerland)

|April 9, 2024

Summary

Identifying drought-stable quantitative trait loci (QTLs) is crucial for wheat yield. This study found 131 QTLs, including 6 directly linked to drought tolerance, aiding development of stress-resilient wheat varieties.

Keywords:

agronomic traits drought tolerance quantitative trait locus wheat yield stability

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

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Last Updated: Jun 28, 2025

Semi-High Throughput Screening for Potential Drought-tolerance in Lettuce Lactuca sativa Germplasm Collections

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Published on: April 17, 2015

Development of Targeting Induced Local Lesions IN Genomes TILLING Populations in Small Grain Crops by Ethyl Methanesulfonate Mutagenesis

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Published on: July 16, 2019

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

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Published on: March 28, 2025

Area of Science:

Plant genetics
Agronomy
Stress physiology

Background:

Drought stress significantly impacts wheat growth and yield.
Identifying genetic factors for drought tolerance is essential for crop improvement.

Purpose of the Study:

To identify drought-stable quantitative trait loci (QTLs) for enhancing wheat grain yield.
To analyze the genetic basis of drought tolerance in wheat.

Main Methods:

Evaluated 18 yield-related traits and drought tolerance indices in a recombinant inbred line population under non-stress and drought-stress conditions.
Utilized wheat 90K single nucleotide polymorphism array for genotyping.
Identified 131 QTLs associated with the evaluated traits.

Main Results:

Drought stress significantly reduced grain weight per spike and grain yield.
Identified 131 QTLs associated with 18 traits, including 43 specifically linked to drought tolerance.
Discovered 6 QTLs with direct linkages to drought tolerance in wheat.

Conclusions:

Drought stress negatively affects grain formation and filling in wheat.
The identified QTLs provide insights into genetic mechanisms of drought tolerance and yield potential.
Results offer a theoretical basis for developing high-yielding, drought-tolerant wheat cultivars.