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    QTL mapping for some grain traits in bread wheat (Triticum aestivum L.)

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    S18ArtKumariMappingInthomDev.pdf (497.9Kb)
    Date
    2018-06-01
    Author
    Kumari, S.
    Jaiswal, V.
    Mishra, V.K.
    Paliwal, R.
    Balyan, H.S.
    Gupta, P.K.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Grain traits are important agronomic attributes with the market value as well as milling yield of bread wheat. In the present study, quantitative trait loci (QTL) regulating grain traits in wheat were identified. Data for grain area size (GAS), grain width (GWid), factor form density (FFD), grain length-width ratio (GLWR), thousand grain weight (TGW), grain perimeter length (GPL) and grain length (GL) were recorded on a recombinant inbred line derived from the cross of NW1014 × HUW468 at Meerut and Varanasi locations. A linkage map of 55 simple sequence repeat markers for 8 wheat chromosomes was used for QTL analysis by Composite interval mapping. Eighteen QTLs distributed on 8 chromosomes were identified for seven grain traits. Of these, five QTLs for GLWR were found on chromosomes 1A, 6A, 2B, and 7B, three QTLs for GPL were located on chromosomes 4A, 5A and 7B and three QTLs for GAS were mapped on 5D and 7D. Two QTLs were identified on chromosomes 4A and 5A for GL and two QTLs for GWid were identified on chromosomes 7D and 6A. Similarly, two QTLs for FFD were found on chromosomes 1A and 5D. A solitary QTL for TGW was identified on chromosome 2B. For several traits, QTLs were also co-localized on chromosomes 2B, 4A, 5A, 6A, 5D, 7B and 7D. The QTLs detected in the present study may be validated for specific crosses and then used for marker-assisted selection to improve grain quality in bread wheat.
    https://dx.doi.org/10.1007/s12298-018-0552-1
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3862
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1007/s12298-018-0552-1
    IITA Subjects
    Grain Legumes; Plant Genetic Resources
    Agrovoc Terms
    Quantitative Trait Loci; Grain; Linkage Map; Triticum Aestivum; Molecular Marker; Bread Wheat
    Regions
    Asia; South Asia
    Countries
    India
    Journals
    Physiology and Molecular Biology of Plants
    Collections
    • Journal and Journal Articles4835
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