title: Characterization of the temporal and spatial expression of wheat (Triticum aestivum L.) plant height at the QTL level and their influence on yield-related traits.
abstract: The temporal and spatial expression patterns of stable QTL for plant height and their influences on yield were characterized. Plant height (PH) is a complex trait in wheat (Triticum aestivum L.) that includes the spike length (SL) and the internode lengths from the first to the fifth internode, which are counted from the top and abbreviated as FIRITL, SECITL, THIITL, FOUITL, and FIFITL, respectively. This study identified eight putative additive quantitative trait loci (QTL) for PH. In addition, unconditional and conditional QTL mapping were used to analyze the temporal and spatial expression patterns of five stable QTL for PH. qPh-3A mainly regulated SL, FIRITL, and FIFITL to affect PH during the booting-heading stage (BS-HS); qPh-3D regulated all internode lengths to affect PH, especially during the BS-HS; before HS, qPh-4B mainly affected FIRITL, SECITL, THIITL, and FOUITL and qPh-5A.1 mainly affected SECITL, THIITL, and FOUITL to regulate PH; and qPh-6B mainly regulated FIRITL to affect the PH after the booting stage (BS). qPhdv-4B, a QTL for the response of PH to nitrogen stress, was stable and co-localized with qPh-4B. All five stable QTL, except for qPh-3A, were related to the 1000 kernel weight and yield per plant. Regions of qPh-3A, qPh-3D, qPh-4B, qPh-5A.1, and qPh-6B showed synteny to parts of rice chromosomes 1, 1, 3, 9, and 2, respectively. Based on comparative genomics analysis, Rht-B1b was cloned and mapped in the CI of qPh-4B. This report provides useful information for fine mapping of the stable QTL for PH and the genetic improvement of wheat plant type.
authors.affiliation: Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050022, China.|University of Chinese Academy of Sciences, Beijing, 10049, China.
authors.forename: Na
authors.initials: N
authors.lastname: Zhang
authors.affiliation: Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Fan
authors.affiliation: Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050022, China. facui@sjziam.ac.cn.|Genetic Improvement Centre of Agricultural and Forest Crops, College of Agriculture, Ludong University, Yantai, 264025, China. facui@sjziam.ac.cn.|State Key Laboratory of Plant Cell and Chromosome Engineering, Chinese Academy of Sciences, Beijing, 100101, China. facui@sjziam.ac.cn.
authors.forename: Fa
authors.initials: F
authors.lastname: Cui
authors.affiliation: Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050022, China.
authors.forename: Chunhua
authors.initials: C
authors.lastname: Zhao
authors.affiliation: Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050022, China.|State Key Laboratory of Plant Cell and Chromosome Engineering, Chinese Academy of Sciences, Beijing, 100101, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Plant Cell and Chromosome Engineering, Chinese Academy of Sciences, Beijing, 100101, China.
authors.forename: Xueqiang
authors.initials: X
authors.lastname: Zhao
authors.affiliation: Xinxiang Academy of Agricultural Sciences, Xinxiang, 453000, China.
authors.forename: Lijuan
authors.initials: L
authors.lastname: Yang
authors.affiliation: University of Chinese Academy of Sciences, Beijing, 10049, China.
authors.forename: Ruiqing
authors.initials: R
authors.lastname: Pan
authors.affiliation: Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050022, China.|University of Chinese Academy of Sciences, Beijing, 10049, China.
authors.forename: Mei
authors.initials: M
authors.lastname: Chen
authors.affiliation: Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050022, China.|University of Chinese Academy of Sciences, Beijing, 10049, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Han
authors.affiliation: Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050022, China.|State Key Laboratory of Plant Cell and Chromosome Engineering, Chinese Academy of Sciences, Beijing, 100101, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Ji
authors.affiliation: State Key Laboratory of Plant Cell and Chromosome Engineering, Chinese Academy of Sciences, Beijing, 100101, China.
authors.forename: Dongcheng
authors.initials: D
authors.lastname: Liu
authors.affiliation: Xinxiang Academy of Agricultural Sciences, Xinxiang, 453000, China.
authors.forename: Zongwu
authors.initials: Z
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Plant Cell and Chromosome Engineering, Chinese Academy of Sciences, Beijing, 100101, China.
authors.forename: Yiping
authors.initials: Y
authors.lastname: Tong
authors.affiliation: State Key Laboratory of Plant Cell and Chromosome Engineering, Chinese Academy of Sciences, Beijing, 100101, China.
authors.forename: Aimin
authors.initials: A
authors.lastname: Zhang
authors.affiliation: Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Wang
authors.affiliation: Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050022, China. ljm@sjziam.ac.cn.|State Key Laboratory of Plant Cell and Chromosome Engineering, Chinese Academy of Sciences, Beijing, 100101, China. ljm@sjziam.ac.cn.
authors.forename: Junming
authors.initials: J
authors.lastname: Li
mesh_terms: D002874:Chromosome Mapping; D010641:Phenotype; D040641:Quantitative Trait Loci; D062211:Spatio-Temporal Analysis; D014908:Triticum / Q000235:genetics* / Q000254:growth & development*