A New QTL for Plant Height in Barley (Hordeum vulgare L.) Showing No Negative Effects on Grain Yield

作者：Wang, Junmei; Yang, Jianming^*; Jia, Qiaojun; Zhu, Jinghuan; Shang, Yi; Hua, Wei; Zhou, Meixue

来源：PLos One, 2014, 9(2): e90144.

DOI：10.1371/journal.pone.0090144

• QUANTITATIVE TRAIT LOCI
• RECOMBINANT INBRED LINES
• LINKAGE MAP
• WATERLOGGING TOLERANCE
• AGRONOMIC TRAITS
• CONSENSUS MAP
• DART MARKERS
• GENOME
• GENES
• IDENTIFICATION

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 6 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.

• 出版日期2014-2-28
• 单位浙江省农业科学院