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QTL Analysis of Spike Morphological Traits and Plant Height in Winter Wheat (Triticum aestivum L.) Using a High-Density SNP and SSR-Based Linkage Map.(quantitative trait locus)(single nucleotide polymorphism)(simple sequence repeat)(Brief article)

Wheat yield can be enhanced by modifying the spike morphology and the plant height. In this study, a population of 191 F9 recombinant inbred lines (RILs) was developed from a cross between two winter cultivars Yumai 8679 and Jing 411. A dense genetic linkage map with 10,816 markers was constructed b... Full description

Journal Title: Frontiers in Plant Science Nov 7, 2016
Main Author: Zhai, Huijie
Other Authors: Feng, Zhiyu , Li, Jiang , Liu, Xinye , Xiao, Shihe , Ni, Zhongfu , Sun, Qixin
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 1664-462X ; DOI: 10.3389/fpls.2016.01617
Zum Text:
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recordid: gale_ofa469285348
title: QTL Analysis of Spike Morphological Traits and Plant Height in Winter Wheat (Triticum aestivum L.) Using a High-Density SNP and SSR-Based Linkage Map.(quantitative trait locus)(single nucleotide polymorphism)(simple sequence repeat)(Brief article)
format: Article
creator:
  • Zhai, Huijie
  • Feng, Zhiyu
  • Li, Jiang
  • Liu, Xinye
  • Xiao, Shihe
  • Ni, Zhongfu
  • Sun, Qixin
subjects:
  • Wheat – Research
  • Wheat – Genetic Aspects
  • Plant Physiology – Genetic Aspects
  • Quantitative Trait Loci – Research
  • Single Nucleotide Polymorphisms – Research
ispartof: Frontiers in Plant Science, Nov 7, 2016
description: Wheat yield can be enhanced by modifying the spike morphology and the plant height. In this study, a population of 191 F9 recombinant inbred lines (RILs) was developed from a cross between two winter cultivars Yumai 8679 and Jing 411. A dense genetic linkage map with 10,816 markers was constructed by incorporating single nucleotide polymorphism (SNP) and simple sequence repeat (SSR) marker information. Five spike morphological traits and plant height were evaluated under nine environments for the RILs and parental lines, and the number of detected environmentally stable QTLs were 18 and 3, respectively. The 1RS/1BL (rye) translocation increased both spike length and spikelet number with constant spikelet compactness. The QPht.cau-2D.1 was identical to gene Rht8, which decreased spike length without modifying spikelet number. Notably, four novel QTLs locating on chromosomes 1AS (QSc.cau-1A.1), 2DS (QSc.cau-2D.1) and 7BS (QSl.cau-7B.1 and QSl.cau-7B.2) were firstly identified in this study, which provide further insights into the genetic factors that shaped the spike morphology in wheat. Moreover, SNP markers tightly linked to previously reported QTLs will eventually facilitate future studies including their positional cloning or marker-assisted selection.
language: eng
source:
identifier: ISSN: 1664-462X ; DOI: 10.3389/fpls.2016.01617
fulltext: fulltext
issn:
  • 1664-462X
  • 1664462X
url: Link


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titleQTL Analysis of Spike Morphological Traits and Plant Height in Winter Wheat (Triticum aestivum L.) Using a High-Density SNP and SSR-Based Linkage Map.(quantitative trait locus)(single nucleotide polymorphism)(simple sequence repeat)(Brief article)
creatorZhai, Huijie ; Feng, Zhiyu ; Li, Jiang ; Liu, Xinye ; Xiao, Shihe ; Ni, Zhongfu ; Sun, Qixin
ispartofFrontiers in Plant Science, Nov 7, 2016
identifierISSN: 1664-462X ; DOI: 10.3389/fpls.2016.01617
subjectWheat – Research ; Wheat – Genetic Aspects ; Plant Physiology – Genetic Aspects ; Quantitative Trait Loci – Research ; Single Nucleotide Polymorphisms – Research
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descriptionWheat yield can be enhanced by modifying the spike morphology and the plant height. In this study, a population of 191 F9 recombinant inbred lines (RILs) was developed from a cross between two winter cultivars Yumai 8679 and Jing 411. A dense genetic linkage map with 10,816 markers was constructed by incorporating single nucleotide polymorphism (SNP) and simple sequence repeat (SSR) marker information. Five spike morphological traits and plant height were evaluated under nine environments for the RILs and parental lines, and the number of detected environmentally stable QTLs were 18 and 3, respectively. The 1RS/1BL (rye) translocation increased both spike length and spikelet number with constant spikelet compactness. The QPht.cau-2D.1 was identical to gene Rht8, which decreased spike length without modifying spikelet number. Notably, four novel QTLs locating on chromosomes 1AS (QSc.cau-1A.1), 2DS (QSc.cau-2D.1) and 7BS (QSl.cau-7B.1 and QSl.cau-7B.2) were firstly identified in this study, which provide further insights into the genetic factors that shaped the spike morphology in wheat. Moreover, SNP markers tightly linked to previously reported QTLs will eventually facilitate future studies including their positional cloning or marker-assisted selection.
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