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A new QTL for plant height in barley (Hordeum vulgare L.) showing no negative effects on grain yield.

ABSTRACT:

Introduction

Reducing plant height has played an important role in improving crop yields. The success of a breeding program relies on the source of dwarfing genes. For a dwarfing or semi-dwarfing gene to be successfully used in a breeding program, the gene should have minimal negative effects on yield and perform consistently in different environments.

Methods

In this study, 182 doubled haploid lines, generated from a cross between TX9425 and Naso Nijo, were grown in six different environments to identify quantitative trait loci (QTL) controlling plant height and investigate QTL × environments interaction.

Results

A QTL for plant was identified on 7H. This QTL showed no significant effects on other agronomic traits and yield components and consistently expressed in the six environments. A sufficient allelic effect makes it possible for this QTL to be successfully used in breeding programs.

SUBMITTER: Wang J

PROVIDER: S-EPMC3938599 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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A new QTL for plant height in barley (Hordeum vulgare L.) showing no negative effects on grain yield.

Wang Junmei J Yang Jianming J Jia Qiaojun Q Zhu Jinghuan J Shang Yi Y Hua Wei W Zhou Meixue M

PloS one 20140228 2

<h4>Introduction</h4>Reducing plant height has played an important role in improving crop yields. The success of a breeding program relies on the source of dwarfing genes. For a dwarfing or semi-dwarfing gene to be successfully used in a breeding program, the gene should have minimal negative effects on yield and perform consistently in different environments.<h4>Methods</h4>In this study, 182 doubled haploid lines, generated from a cross between TX9425 and Naso Nijo, were grown in six different ...[more]

PMID: 24587247

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