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Related Experiment Video

Updated: Sep 29, 2025

Profiling Volatile Compounds in Blackcurrant Fruit using Headspace Solid-Phase Microextraction Coupled to Gas Chromatography-Mass Spectrometry

Profiling Volatile Compounds in Blackcurrant Fruit using Headspace Solid-Phase Microextraction Coupled to Gas Chromatography-Mass Spectrometry

Published on: June 9, 2021

Analysis of a Multi-Environment Trial for Black Raspberry (Rubus occidentalis L.) Quality Traits.

Matthew R Willman¹, Jill M Bushakra², Nahla Bassil²

¹Department of Horticulture and Crop Science, The Ohio State University, Wooster, OH 44691, USA.

|March 25, 2022

Summary

Developing improved black raspberry (BR) cultivars requires understanding fruit trait genetics. This study identified stable genetic control for fruit size traits and linked several size-related quantitative trait loci (QTL).

Keywords:

QTL-by-environment interaction genotype-by-environment interaction high-throughput genotyping mixed model analysis pomological traits

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Last Updated: Sep 29, 2025

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Construction of Models for Nondestructive Prediction of Ingredient Contents in Blueberries by Near-infrared Spectroscopy Based on HPLC Measurements

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Published on: June 28, 2016

Area of Science:

Plant genetics
Horticultural science
Quantitative genetics

Background:

U.S. black raspberry (BR) production faces limitations due to narrowly adapted germplasm.
Understanding the genetic basis and environmental stability of pomological traits is crucial for developing superior BR cultivars.

Purpose of the Study:

To analyze genetic variation, genotype-by-environment interactions (GxE), quantitative trait loci (QTL), and QTL-by-environment interactions (QxE) for fruit quality traits in a BR mapping population.
To characterize the genetic components and stability of fruit size and biochemical traits across diverse U.S. growing conditions.

Main Methods:

Evaluation of a black raspberry mapping population across four distinct locations over three years.
Analysis of genotype-by-environment interactions (GxE) and QTL-by-environment interactions (QxE) for fruit size and biochemical traits.
Identification and characterization of quantitative trait loci (QTL) influencing fruit quality.

Main Results:

Fruit size traits exhibited relatively stable genetic control across environments, while biochemical traits showed less stability.
Eleven of fifteen identified QTL demonstrated significant QTL-by-environment interactions (QxE).
Overlapping QTL indicated linkage between fruit mass, drupelet count, and seed fraction.

Conclusions:

Genetic control of black raspberry fruit size is generally stable across different environments.
Findings provide insights for targeted breeding strategies to enhance black raspberry fruit quality and develop improved cultivars.
Understanding QTLxE is vital for breeding stable and high-performing black raspberry varieties.